Side by side

34-, 40- and 50-position IDC ribbon headers

Which 2.54 mm two-row position count and keying does the exact header use?

Computer-generated illustration, not a photograph. — P243 · Connector34-position 2.54 mm IDC ribbon receptacle

How they differ

34-position 2.54 mm IDC ribbon receptacle Count 34 positions across two rows and inspect polarization/keying; use device documentation to establish what the header actually carries.
40-position 2.54 mm IDC ribbon header Confirm the 40-position, two-row layout and housing keying from the exact host or cable documentation rather than relying on the “IDE cable” shorthand.
50-position 2.54 mm IDC ribbon header Count the two rows, confirm the 50-position layout and keyed/polarized housing details, then verify the equipment documentation before treating it as a known interface.

Then askWhich 2.54 mm two-row position count and keying does the exact header use?

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	34-position 2.54 mm IDC ribbon receptacle	40-position 2.54 mm IDC ribbon header	50-position 2.54 mm IDC ribbon header
Type	Connector	Connector	Connector
Family	Legacy computer	Legacy computer	Legacy computer
Shape	ribbon	ribbon	ribbon
Nominal contacts	34S263Source-backed nominal position/contact count: 34.	40S262Source-backed nominal position/contact count: 40.	50S261Source-backed nominal position/contact count: 50.
Positions / cavity span	34 (Claim C243A); 34 (Claim C243B)S263 · S287Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement.	40 (Claim C242A); 40 (Claim C242B)S262 · S286Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.	50 (Claim C241A); 50 (Claim C241B)S261 · S285Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.
Contact rows	2 (Claim C243A); 2 (Claim C243B); 2 (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 2-1658527-8 as a 34-position, two-row IDC ribbon-cable receptacle with 2.54 mm centerline spacing. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 2-1658527-8 as a two-row 34-position receptacle on 2.54 mm centers using insulation-displacement termination and polarized mating alignment. \| V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2 (Claim C242A); 2 (Claim C242B); 2 (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-1761685-3 as a 40-position, two-row ribbon-cable header with a 2.54 mm centerline. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-1761685-3 as a vertical two-row 40-position pin header on 2.54 mm centers with mating alignment and ejection-latch retention. \| V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2 (Claim C241A); 2 (Claim C241B); 2 (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-5102153-0 as a 50-position, two-row AMP-LATCH ribbon-cable header with 2.54 mm centerline spacing. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-5102153-0 as a vertical, two-row 50-position board-mount plug on 2.54 mm centers, with mating alignment/polarizing features and ejection-latch retention. \| V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Connector role	socket; socket (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row free-hanging IDC ribbon-cable receptacle 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	header; plug (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	header; plug (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Key distinction	Position count and IDC construction identify the connector form, not the signal assignment or attached device class.	A familiar 40-position ribbon form does not by itself prove ATA/PATA, GPIO or another historical bus assignment.	Ribbon headers with the same pitch and row count can carry unrelated signals, so physical format and system role must be verified separately.

Full evidence ledger and sources ↓

Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.

This comparison stays within one evidence layer.

All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.

Families represented: Legacy computer

The reference ledger

Read the same question across.

3 selected records · 13 fields
No score. No compatibility verdict.

On a narrow screen, scroll the table sideways or open the field-by-field reading view below. Illustrations are not a size comparison.

Comparison of selected field notes; source links accompany each documented specification
What you are comparing	P243 / Connector34-position 2.54 mm IDC ribbon receptacle Identification schematic · not to scale · drawing review pending	P242 / Connector40-position 2.54 mm IDC ribbon header Identification schematic · not to scale · drawing review pending	P241 / Connector50-position 2.54 mm IDC ribbon header Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector	Connector
Key distinction	Position count and IDC construction identify the connector form, not the signal assignment or attached device class.	A familiar 40-position ribbon form does not by itself prove ATA/PATA, GPIO or another historical bus assignment.	Ribbon headers with the same pitch and row count can carry unrelated signals, so physical format and system role must be verified separately.
Nominal contacts	34S263Source-backed nominal position/contact count: 34.	40S262Source-backed nominal position/contact count: 40.	50S261Source-backed nominal position/contact count: 50.
Positions / cavity span	34 (Claim C243A); 34 (Claim C243B)S263 · S287Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement.	40 (Claim C242A); 40 (Claim C242B)S262 · S286Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.	50 (Claim C241A); 50 (Claim C241B)S261 · S285Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.
Populated contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	2 (Claim C243A); 2 (Claim C243B); 2 (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 2-1658527-8 as a 34-position, two-row IDC ribbon-cable receptacle with 2.54 mm centerline spacing. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 2-1658527-8 as a two-row 34-position receptacle on 2.54 mm centers using insulation-displacement termination and polarized mating alignment. \| V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2 (Claim C242A); 2 (Claim C242B); 2 (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-1761685-3 as a 40-position, two-row ribbon-cable header with a 2.54 mm centerline. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-1761685-3 as a vertical two-row 40-position pin header on 2.54 mm centers with mating alignment and ejection-latch retention. \| V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2 (Claim C241A); 2 (Claim C241B); 2 (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-5102153-0 as a 50-position, two-row AMP-LATCH ribbon-cable header with 2.54 mm centerline spacing. \| V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-5102153-0 as a vertical, two-row 50-position board-mount plug on 2.54 mm centers, with mating alignment/polarizing features and ejection-latch retention. \| V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Contact pitch	2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C243A); 2.54 mm centerline (2-1658527-8)S287 · S263 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row free-hanging IDC ribbon-cable receptacle V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C242A); 2.54 mm centerline (1-1761685-3)S286 · S262 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row vertical wire-to-board pin header V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C241A); 2.54 mm centerline (1-5102153-0)S285 · S261 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row vertical wire-to-board pin header V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Dimensions / axis	2.54 mm row-to-row spacing (2-1658527-8)S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	69.85 mm connector length (1-1761685-3); 8.89 mm connector height (1-1761685-3)S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	82.8 mm connector length (1-5102153-0); 13.94 mm connector height (1-5102153-0)S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Connector role	socket; socket (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row free-hanging IDC ribbon-cable receptacle 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	header; plug (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	header; plug (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Coupling / latch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	latch (Claim C242B)S286Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.	latch (Claim C241B)S285Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.
Keying / polarization	Polarization; free-hanging IDC receptacle; without mating retention (2-1658527-8)S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.	Not recordedCenter mating alignment without an identified key/polarizing feature remains context rather than target-qualified keying. A mating key remains unestablished.	Mating alignment: Center \| Dual Polarizing Bar; ejection latches (1-5102153-0)S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Documented identification	34-position/contact recognition fact in the cited implementation.C243A	40-position/contact recognition fact in the cited implementation.C242A	50-position/contact recognition fact in the cited implementation.C241A
Evidence	C243A → Independent review pending	C242A → Independent review pending	C241A → Independent review pending

Read field by field — no sideways scrolling

The same selected records, fields, values and source links as the table. Missing fields remain non-equivalent; no values are merged.

Layer

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: Connector
40-position 2.54 mm IDC ribbon headerP242 / Connector: Connector
50-position 2.54 mm IDC ribbon headerP241 / Connector: Connector

Key distinction

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: Position count and IDC construction identify the connector form, not the signal assignment or attached device class.
40-position 2.54 mm IDC ribbon headerP242 / Connector: A familiar 40-position ribbon form does not by itself prove ATA/PATA, GPIO or another historical bus assignment.
50-position 2.54 mm IDC ribbon headerP241 / Connector: Ribbon headers with the same pitch and row count can carry unrelated signals, so physical format and system role must be verified separately.

Nominal contacts

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 34S263Source-backed nominal position/contact count: 34.
40-position 2.54 mm IDC ribbon headerP242 / Connector: 40S262Source-backed nominal position/contact count: 40.
50-position 2.54 mm IDC ribbon headerP241 / Connector: 50S261Source-backed nominal position/contact count: 50.

Positions / cavity span

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 34 (Claim C243A); 34 (Claim C243B)S263 · S287Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement.
40-position 2.54 mm IDC ribbon headerP242 / Connector: 40 (Claim C242A); 40 (Claim C242B)S262 · S286Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.
50-position 2.54 mm IDC ribbon headerP241 / Connector: 50 (Claim C241A); 50 (Claim C241B)S261 · S285Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.

Populated contacts

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
40-position 2.54 mm IDC ribbon headerP242 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
50-position 2.54 mm IDC ribbon headerP241 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 2 (Claim C243A); 2 (Claim C243B); 2 (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 2-1658527-8 as a 34-position, two-row IDC ribbon-cable receptacle with 2.54 mm centerline spacing. | V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 2-1658527-8 as a two-row 34-position receptacle on 2.54 mm centers using insulation-displacement termination and polarized mating alignment. | V44 engineering reference for the cited component only; not a universal ribbon-cable wire map, fabrication tolerance or device-compatibility statement. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
40-position 2.54 mm IDC ribbon headerP242 / Connector: 2 (Claim C242A); 2 (Claim C242B); 2 (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-1761685-3 as a 40-position, two-row ribbon-cable header with a 2.54 mm centerline. | V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-1761685-3 as a vertical two-row 40-position pin header on 2.54 mm centers with mating alignment and ejection-latch retention. | V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
50-position 2.54 mm IDC ribbon headerP241 / Connector: 2 (Claim C241A); 2 (Claim C241B); 2 (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE Connectivity identifies part 1-5102153-0 as a 50-position, two-row AMP-LATCH ribbon-cable header with 2.54 mm centerline spacing. | V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. TE Connectivity specifies part 1-5102153-0 as a vertical, two-row 50-position board-mount plug on 2.54 mm centers, with mating alignment/polarizing features and ejection-latch retention. | V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Contact pitch

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C243A); 2.54 mm centerline (2-1658527-8)S287 · S263 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row free-hanging IDC ribbon-cable receptacle V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
40-position 2.54 mm IDC ribbon headerP242 / Connector: 2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C242A); 2.54 mm centerline (1-1761685-3)S286 · S262 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row vertical wire-to-board pin header V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
50-position 2.54 mm IDC ribbon headerP241 / Connector: 2.54 mm Centerline pitch (Recorded example component); 2.54 mm Source-described pitch / centerline (Claim C241A); 2.54 mm centerline (1-5102153-0)S285 · S261 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; two-row vertical wire-to-board pin header V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Dimensions / axis

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 2.54 mm row-to-row spacing (2-1658527-8)S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
40-position 2.54 mm IDC ribbon headerP242 / Connector: 69.85 mm connector length (1-1761685-3); 8.89 mm connector height (1-1761685-3)S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
50-position 2.54 mm IDC ribbon headerP241 / Connector: 82.8 mm connector length (1-5102153-0); 13.94 mm connector height (1-5102153-0)S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Connector role

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: socket; socket (2-1658527-8)S263 · S287 · S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row free-hanging IDC ribbon-cable receptacle 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
40-position 2.54 mm IDC ribbon headerP242 / Connector: header; plug (1-1761685-3)S262 · S286 · S262Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-1761685-3. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
50-position 2.54 mm IDC ribbon headerP241 / Connector: header; plug (1-5102153-0)S261 · S285 · S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. two-row vertical wire-to-board pin header 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Coupling / latch

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
40-position 2.54 mm IDC ribbon headerP242 / Connector: latch (Claim C242B)S286Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.
50-position 2.54 mm IDC ribbon headerP241 / Connector: latch (Claim C241B)S285Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V44 engineering reference for the cited component only; not a universal IDC pinout, wiring diagram, fabrication tolerance or device-compatibility statement.

Keying / polarization

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: Polarization; free-hanging IDC receptacle; without mating retention (2-1658527-8)S263Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 2-1658527-8. Documented role: socket. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
40-position 2.54 mm IDC ribbon headerP242 / Connector: Not recordedCenter mating alignment without an identified key/polarizing feature remains context rather than target-qualified keying. A mating key remains unestablished.
50-position 2.54 mm IDC ribbon headerP241 / Connector: Mating alignment: Center | Dual Polarizing Bar; ejection latches (1-5102153-0)S261Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 1-5102153-0. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Documented identification

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: 34-position/contact recognition fact in the cited implementation.C243A
40-position 2.54 mm IDC ribbon headerP242 / Connector: 40-position/contact recognition fact in the cited implementation.C242A
50-position 2.54 mm IDC ribbon headerP241 / Connector: 50-position/contact recognition fact in the cited implementation.C241A

Evidence

34-position 2.54 mm IDC ribbon receptacleP243 / Connector: C243A →
Independent review pending
40-position 2.54 mm IDC ribbon headerP242 / Connector: C242A →
Independent review pending
50-position 2.54 mm IDC ribbon headerP241 / Connector: C241A →
Independent review pending

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68-position MDR versus 68-contact VHDCIIs the 68-contact legacy interface MDR or the narrower VHDCI family? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.CHAMP 36 versus CHAMP 50Is the full-size CHAMP/Centronics-style connector the 36-position or 50-position form? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.DE-9 versus DB25Find the exact documented interface before choosing a cable.MDR 36 versus 50 versus 68Which Mini Delta Ribbon position count and series does the exact component specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.PS/2 form versus S-Video formCompare the contact pattern and keying, not only a circular shell.BNC vs TNC coaxial connectorsBNC uses bayonet coupling while TNC uses threaded coupling. Connector family, impedance and application still need to be verified independently.

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Evidence behind this page

Scope first. Source second. Approval separate.

3 linked sources · 3 scoped claims · 0 sources with inspection/access flags.

Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-04. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 3 source scopes, access limits and dates

S261 · 50-position AMP-LATCH universal header

TE Connectivity · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies a 50-position, two-row, 2.54 mm AMP-LATCH ribbon-cable header; V43 uses only form, position count and pitch for recognition.

Not established / limitations: Identification/reference scope only. V43 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: Product configuration summary

S262 · 40-position AMP-LATCH ribbon header

TE Connectivity · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies a 40-position, two-row, 2.54 mm AMP-LATCH ribbon-cable header; V43 uses only recognition facts.

Locator: Product configuration summary

S263 · 34-position AMP-LATCH IDC receptacle

TE Connectivity · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies a 34-position, two-row, 2.54 mm AMP-LATCH IDC receptacle; V43 uses only form and count facts.

Locator: Product configuration summary

Trace 3 claims to their source records

C241A · P241

TE Connectivity identifies part 1-5102153-0 as a 50-position, two-row AMP-LATCH ribbon-cable header with 2.54 mm centerline spacing.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S261 · Evidence trail → (private workspace)

C242A · P242

TE Connectivity identifies part 1-1761685-3 as a 40-position, two-row ribbon-cable header with a 2.54 mm centerline.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S262 · Evidence trail → (private workspace)

C243A · P243

TE Connectivity identifies part 2-1658527-8 as a 34-position, two-row IDC ribbon-cable receptacle with 2.54 mm centerline spacing.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S263 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.