FIELD GUIDESource-led reference
Port & Cable

P226 / Coax / Connector

TNC coaxial connector

TNC is a threaded coaxial connector family related in size to BNC but using a screw coupling rather than a bayonet lock.

Also called TNC Threaded Neill-Concelman

Coupling style is a useful identifier, but it does not establish impedance or system performance.

Look for

Look for the threaded coupling and compare against TNC documentation rather than forcing a BNC-style bayonet connection.

Claim inspection dates: 2026-10-05, 2026-10-12, 2026-10-22 · Independent review pending

TNC coaxial connector: three-quarter view. Computer-generated illustration, not a photograph.

Three-quarter view Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

TNC coaxial connector: mating face. Computer-generated illustration, not a photograph.

Mating face Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

TNC coaxial connector: fitted in place. Computer-generated illustration, not a photograph.

Fitted in place Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

TNC coaxial connector: original recognition drawing, not to scale.

Recognition drawing Original schematic, not to scale. Drawing review pending.

Image inspection / P226

See the view. Check its scope.

2 registered views for this reference. Different part examples are not automatically mates; all remain not to scale and independently unapproved.

TNC 122108 / revision B body. Historical 122108 revision B (2008-07-16), body only. Separate contact pin and ferrule omitted. Current geometry is unverified. (private workspace)

P226 / Source-observed physical study

TNC 122108 / revision B body

Amphenol Connex 122108 / revision B / 2008-07-16

Side elevation: coupling end left, cable-side tail right · Cable plug / cable end

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)
TNC 122108 / revision B separate components. Historical 122108 revision B (2008-07-16). Components remain separate: not an assembled connector, cable-preparation sequence or fit template. Current geometry is unverified. (private workspace)

P226 / Source-observed physical study

TNC 122108 / revision B separate components

Amphenol Connex 122108 / revision B / 2008-07-16

Body, loose contact pin and ferrule shown separately; relative scale intentionally not shared · Cable plug / cable end

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)

The useful distinction

Recognize it. Then verify it.

TNC is a threaded coaxial connector family related in size to BNC but using a screw coupling rather than a bayonet lock. [C226A]

Amphenol RF identifies 122108 as a straight TNC plug with threaded coupling, crimp contact termination and 50-ohm impedance. [C226C]

The 122108 page lists cable-crimp termination and no applicable panel-mounting feature; RG-58, RG-141 and Times LMR-195 appear among its specified cable types. [C226D]

The manufacturer-authored 122108 drawing, revision B dated 16 July 2008, depicts the connector body, contact pin and ferrule separately. [C226E]

The same revision B drawing shows a knurled coupling region on the body and a narrower, stepped cable-side tail. [C226F]

The 122108 revision B materials table names Delrin for the insulator, while the product page observed on 12 October 2026 names PTFE. [C226G]

Amphenol RF 122108 is a straight TNC plug. Its table reports brass body; nickel finish, brass contact; gold finish, cable-crimp construction; crimp contact termination, threaded coupling, 50-ohm impedance, a 11-GHz frequency ceiling and 500 minimum mating cycles. These are exact-part manufacturer specifications, not family-wide ratings or independent test results. [C226X]

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Mountingpanel (Claim C226D); cable (Claim C226F)S539 · S557Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Selected manufacturer cable entries, not a complete cable list, strip specification or tooling approval. Qualitative exterior recognition from the dated drawing; no dimensions, hidden contacts or current manufacturing equivalence.
Coupling / latchthreaded (Claim C226C); ThreadedS539 · S230Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Only exact part 122108; not a claim about reverse-polarity parts or every TNC connector. Named series only, not every family part: Amphenol RF TNC product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.
ManufacturerAmphenol RFS230Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF TNC product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.
SeriesTNCS230Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF TNC product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.

Not recorded: Nominal contacts, Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Dimensions / axis, Connector role, Contact gender / arrangement, Keying / polarization, Shell / form, Exact part / implementation, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits
  • Coupling style or polarity identity does not establish cable type, impedance, frequency range or system compatibility for a specific assembly.
  • No fabrication dimensions or mating-face contact locator is published.
Report a correction to these facts →

Bounded facts, visible unknowns

Specifications and limits

TNC coaxial connector facts and limitations
Documented identificationThreaded TNC coaxial connector family. [C226A]
Mechanical dimensionsNo independently reviewed mechanical drawing in V39; do not use this page for fabrication, fit testing or tolerance work.
Engineering pinoutSource-checked engineering profile available; independent review pending. Open engineering profile →
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

Use the source-backed form or position count only for identification. Resolve ratings, protocol, direction, wiring, cable construction and exact device support from the relevant equipment and component documentation.

Before you connect

What to check

  1. Identify the exact connector family and variant from the equipment or cable documentation.
  2. Keep shape, contact count, protocol, electrical rating and device support as separate facts.
  3. Do not force, rewire or adapt a connector from this recognition record; resolve the remaining requirements first.
Trace a supported connection class →

What is not established

This field note does not approve a connection, adapter, cable assembly, rewiring scheme or fabricated part. It intentionally omits unsupported pin assignments and mechanical tolerances.

Your next step

Move from the form to the requirement.

Read the engineering reference Source-scoped details, orientation and explicit unknowns.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies. (private workspace)

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

Back to first citation ↑
C226ASource checked · pending review

Amphenol RF identifies TNC as a threaded coaxial connector family available in standard and reverse-polarity formats.

Amphenol RF · TNC connectors ↗

Locator: TNC overview
Access: public page. Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

S230: full source recordInspect review dependencies → (private workspace)

Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.. Next review due 2027-01-03.

Back to first citation ↑
C226CSource checked · pending review

Amphenol RF identifies 122108 as a straight TNC plug with threaded coupling, crimp contact termination and 50-ohm impedance.

Amphenol RF · Amphenol RF 122108 — TNC cable termination and role ↗

Locator: Exact part 122108: heading; Gender, Impedance, Coupling Mechanism, Contact Termination, Cable Type and Panel Mounting Feature rows.
Access: public page. Product text checked. Linked customer drawing could not be inspected; no physical study, contact arrangement, strip lengths or installation sequence inferred.

S539: full source recordInspect review dependencies → (private workspace)

Claim scope: Only exact part 122108; not a claim about reverse-polarity parts or every TNC connector.. Next review due 2027-01-10.

Back to first citation ↑
C226DSource checked · pending review

The 122108 page lists cable-crimp termination and no applicable panel-mounting feature; RG-58, RG-141 and Times LMR-195 appear among its specified cable types.

Amphenol RF · Amphenol RF 122108 — TNC cable termination and role ↗

Locator: Exact part 122108: heading; Gender, Impedance, Coupling Mechanism, Contact Termination, Cable Type and Panel Mounting Feature rows.
Access: public page. Product text checked. Linked customer drawing could not be inspected; no physical study, contact arrangement, strip lengths or installation sequence inferred.

S539: full source recordInspect review dependencies → (private workspace)

Claim scope: Selected manufacturer cable entries, not a complete cable list, strip specification or tooling approval.. Next review due 2027-01-10.

Back to first citation ↑
C226ESource checked · pending review

The manufacturer-authored 122108 drawing, revision B dated 16 July 2008, depicts the connector body, contact pin and ferrule separately.

Amphenol Connex (manufacturer drawing hosted by Aircraft Spruce) · Amphenol Connex 122108 — historical revision B drawing ↗

Locator: Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
Access: public pdf text. Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

S557: full source recordInspect review dependencies → (private workspace)

Claim scope: Historical revision only; separated components are not an assembled cable or instructions for preparing one.. Next review due 2027-01-10.

Back to first citation ↑
C226FSource checked · pending review

The same revision B drawing shows a knurled coupling region on the body and a narrower, stepped cable-side tail.

Amphenol Connex (manufacturer drawing hosted by Aircraft Spruce) · Amphenol Connex 122108 — historical revision B drawing ↗

Locator: Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
Access: public pdf text. Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

S557: full source recordInspect review dependencies → (private workspace)

Claim scope: Qualitative exterior recognition from the dated drawing; no dimensions, hidden contacts or current manufacturing equivalence.. Next review due 2027-01-10.

Back to first citation ↑
C226GSource checked · pending review

The 122108 revision B materials table names Delrin for the insulator, while the product page observed on 12 October 2026 names PTFE.

Amphenol RF · Amphenol RF 122108 — current material field ↗

Locator: Product Specifications: Insulator Material, component role and termination fields.
Access: public page. Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

S556: full source recordAmphenol Connex (manufacturer drawing hosted by Aircraft Spruce) · Amphenol Connex 122108 — historical revision B drawing ↗

Locator: Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
Access: public pdf text. Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

S557: full source recordInspect review dependencies → (private workspace)

Claim scope: Unresolved difference between a historical drawing and the current page. Neither value is selected as a verified specification for a supplied part.. Next review due 2027-01-10.

Back to first citation ↑
C226XSource checked · pending review

Amphenol RF 122108 is a straight TNC plug. Its table reports brass body; nickel finish, brass contact; gold finish, cable-crimp construction; crimp contact termination, threaded coupling, 50-ohm impedance, a 11-GHz frequency ceiling and 500 minimum mating cycles. These are exact-part manufacturer specifications, not family-wide ratings or independent test results.

Amphenol RF · Amphenol RF 122108 — TNC cable termination and role ↗

Locator: Exact part 122108: heading; Gender, Impedance, Coupling Mechanism, Contact Termination, Cable Type and Panel Mounting Feature rows.
Access: public page. Product text checked. Linked customer drawing could not be inspected; no physical study, contact arrangement, strip lengths or installation sequence inferred.

S539: full source recordInspect review dependencies → (private workspace)

Claim scope: Only Amphenol RF 122108, the named straight TNC plug. No family-wide geometry, mating pair, installed-cable performance or operating approval follows.. Next review due 2027-01-20.

Suggest a correction to this field note →

Put this field note to work.

Add to discovery trayRecord an unsaved candidate (private workspace)

Compare look-alikes: TNC versus RP-TNC

Candidate selection does not confirm the identity or capabilities of your physical item.

SOURCE-QUALIFIED COAXIAL REFERENCE

Separate the interface, mounting and termination.

Amphenol RF 122108

Source / component role
Straight TNC cable-crimp plug; no applicable panel-mount feature.
Documented distinction
Named part: 50 ohm, threaded coupling, crimp contact termination.
What this establishes
RG-58, RG-141 and Times LMR-195 are among its listed cable types; the manufacturer lists additional cables.
Not established
The exact drawing is uninspected. No physical illustration, contact geometry, strip lengths or assembly procedure is provided.
Next check
Confirm the exact cable construction and current drawing/tooling instructions; a cable-family label alone is not an assembly approval.

No source-observed physical view is selected for this row.

Evidence, observation & limits

Inspected . C226C · C226D

Amphenol RF 122108 — TNC cable termination and role ↗
V132 observation: Exact part 122108: heading; Gender, Impedance, Coupling Mechanism, Contact Termination, Cable Type and Panel Mounting Feature rows.
Canonical source record S539 dated 2026-10-12. The V132 visit is recorded separately; inherited source dates are unchanged.

No hardware test, independent technical approval or rights clearance is asserted.

Read the coaxial role chart and field guide →

REVISION-QUALIFIED RF REFERENCE

Keep source identity beside the component.

122108 / revision B / 2008-07-16

Role
Body of a cable plug; loose parts not shown in this view.
Distinction
Knurled coupling region and a narrower stepped cable-side tail.
Established
The inspected revision supports this qualitative body view.
Not established
Current dimensions, material and revision equivalence are unverified.
Next check
Identify the revision supplied with the actual part before using engineering information.
Inspect the dated view → (private workspace)
Evidence, revision & limits

Observed . C226F

Amphenol Connex 122108 — historical revision B drawing ↗
Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
S557 · canonical observation date 2026-10-12. Historical manufacturer-authored drawing, hosted by a distributor. Two qualitative views retain revision B / 2008-07-16. Current dimensional or material equivalence is unverified; installation dimensions are omitted.

Observation date is not drawing issue date. No hardware test, current-revision equivalence or independent approval.

122108 / revision B / 2008-07-16

Role
Body, contact pin and ferrule are distinct depicted components.
Distinction
The separate pin is not silently inserted into the body image.
Established
The dated drawing distinguishes loose components from an assembly.
Not established
No assembled cable, crimp selection or preparation method is established.
Next check
Use the exact current assembly instructions for any installation.
Inspect the dated view → (private workspace)
Evidence, revision & limits

Observed . C226E

Amphenol Connex 122108 — historical revision B drawing ↗
Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
S557 · canonical observation date 2026-10-12. Historical manufacturer-authored drawing, hosted by a distributor. Two qualitative views retain revision B / 2008-07-16. Current dimensional or material equivalence is unverified; installation dimensions are omitted.

Observation date is not drawing issue date. No hardware test, current-revision equivalence or independent approval.

122108 / historical drawing and current page

Role
Two source observations are not automatically equivalent.
Distinction
Drawing: Delrin. Current product page: PTFE.
Established
An unresolved material difference is retained without selecting either value.
Not established
No evidence here establishes which document governs a supplied component.
Next check
Resolve the applicable drawing revision and material with the manufacturer.

No physical view is assigned to this evidence row.

Evidence, revision & limits

Observed . C226G

Amphenol RF 122108 — current material field ↗
Product Specifications: Insulator Material, component role and termination fields.
S556 · canonical observation date 2026-10-12. The observed product page lists PTFE. This disagrees with the Delrin entry in the separately acquired revision B drawing; no resolution or supersession is established.

Amphenol Connex 122108 — historical revision B drawing ↗
Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.
S557 · canonical observation date 2026-10-12. Historical manufacturer-authored drawing, hosted by a distributor. Two qualitative views retain revision B / 2008-07-16. Current dimensional or material equivalence is unverified; installation dimensions are omitted.

Observation date is not drawing issue date. No hardware test, current-revision equivalence or independent approval.

Read the illustrated revision and contact reference →

Evidence behind this page

Scope first. Source second. Approval separate.

4 linked sources · 7 scoped claims · 0 sources with inspection/access flags.

Page scope: catalogue_expansion_v39

Assessment 2026-10-22 · earliest scheduled source review 2027-01-03. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 4 source scopes, access limits and dates

S230 · TNC connectors

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies TNC as a threaded coaxial connector family and notes standard and reverse-polarity formats.

Not established / limitations: Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: TNC overview

S539 · Amphenol RF 122108 — TNC cable termination and role

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: Only this 50-ohm straight TNC crimp plug, with RG-58, RG-141 and Times LMR-195 among the explicitly listed cables. A cable-family listing is not a universal preparation or tooling specification.

Not established / limitations: Product text checked. Linked customer drawing could not be inspected; no physical study, contact arrangement, strip lengths or installation sequence inferred.

Locator: Exact part 122108: heading; Gender, Impedance, Coupling Mechanism, Contact Termination, Cable Type and Panel Mounting Feature rows.

S556 · Amphenol RF 122108 — current material field

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: The observed product page lists PTFE. This disagrees with the Delrin entry in the separately acquired revision B drawing; no resolution or supersession is established.

Not established / limitations: Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

Locator: Product Specifications: Insulator Material, component role and termination fields.

S557 · Amphenol Connex 122108 — historical revision B drawing

Amphenol Connex (manufacturer drawing hosted by Aircraft Spruce) · Unclassified publisher domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: Historical manufacturer-authored drawing, hosted by a distributor. Two qualitative views retain revision B / 2008-07-16. Current dimensional or material equivalence is unverified; installation dimensions are omitted.

Not established / limitations: Source scope and revision retained. No manufacturing dimensions, current-revision equivalence, mating approval or hardware testing.

Locator: Single page: drawing number 122108.DWG, revision B, issue date 07/16/08; body elevation, separate pin and ferrule, title block and materials table visually inspected.

Trace 7 claims to their source records

C226A · P226

Amphenol RF identifies TNC as a threaded coaxial connector family available in standard and reverse-polarity formats.

Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S230 · Evidence trail → (private workspace)

C226C · P226

Amphenol RF identifies 122108 as a straight TNC plug with threaded coupling, crimp contact termination and 50-ohm impedance.

Claim scope: Only exact part 122108; not a claim about reverse-polarity parts or every TNC connector.

Source links: S539 · Evidence trail → (private workspace)

C226D · P226

The 122108 page lists cable-crimp termination and no applicable panel-mounting feature; RG-58, RG-141 and Times LMR-195 appear among its specified cable types.

Claim scope: Selected manufacturer cable entries, not a complete cable list, strip specification or tooling approval.

Source links: S539 · Evidence trail → (private workspace)

C226E · P226

The manufacturer-authored 122108 drawing, revision B dated 16 July 2008, depicts the connector body, contact pin and ferrule separately.

Claim scope: Historical revision only; separated components are not an assembled cable or instructions for preparing one.

Source links: S557 · Evidence trail → (private workspace)

C226F · P226

The same revision B drawing shows a knurled coupling region on the body and a narrower, stepped cable-side tail.

Claim scope: Qualitative exterior recognition from the dated drawing; no dimensions, hidden contacts or current manufacturing equivalence.

Source links: S557 · Evidence trail → (private workspace)

C226G · P226

The 122108 revision B materials table names Delrin for the insulator, while the product page observed on 12 October 2026 names PTFE.

Claim scope: Unresolved difference between a historical drawing and the current page. Neither value is selected as a verified specification for a supplied part.

Source links: S556 · S557 · Evidence trail → (private workspace)

C226X · P226

Amphenol RF 122108 is a straight TNC plug. Its table reports brass body; nickel finish, brass contact; gold finish, cable-crimp construction; crimp contact termination, threaded coupling, 50-ohm impedance, a 11-GHz frequency ceiling and 500 minimum mating cycles. These are exact-part manufacturer specifications, not family-wide ratings or independent test results.

Claim scope: Only Amphenol RF 122108, the named straight TNC plug. No family-wide geometry, mating pair, installed-cable performance or operating approval follows.

Source links: S539 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)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.