FIELD GUIDESource-led reference

P359 / Molex Fit wire-to-board / Connector

Molex Micro-Fit 3.0 connector family

Molex describes Micro-Fit 3.0 as a distinct 3.00 mm nominal-pitch family; product 430451200 is a right-angle, dual-row, 12-circuit header.

Also called Micro-Fit 3.0 Molex Micro Fit 3.0 Micro Fit 3mm Molex 43045

The cited Micro-Fit example is a right-angle PCB header. A board header image should not be labelled as a plug on a cable.

Look for

Read the specific Molex 43045/other family part number, circuit count, orientation, keyed geometry and cable-side parts.

Claim inspection dates: 2026-10-10, 2026-10-11, 2026-10-22 · Independent review pending

Image inspection / P359

See the view. Check its scope.

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

Molex Micro-Fit 3.0: A shrouded header with board-termination tails. Simplified Board-mounted header; Simplified oblique exterior. Not to scale; contact detail omitted. (private workspace)

P359 / Source-observed physical study

Molex Micro-Fit 3.0

430451200 right-angle header

Simplified oblique exterior · Board header

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)

Matching notes / Miniature repair / P359

Is Micro-Fit a smaller interchangeable Mini-Fit?

FIELD NOTES 03

Do not infer that. The recorded 430451200 is a 12-circuit, 3.00 mm right-angle board header; the Mini-Fit Jr. example is a different product.

SOURCE-SUPPORTED LEAD

What the evidence supports

The source supports the named board-header role and visible board tails.

INSUFFICIENT MATCHING EVIDENCE

What not to conclude

Similar family names do not establish intermateability or a shared wiring assignment.

NOT ESTABLISHED

Keep this check open

Exact housing, terminal and device wiring need their own evidence.

Before you choose a part

  1. Find the full manufacturer part number.
  2. Separate the board-mounted header from the cable housing.
  3. Check the exact mating component rather than a family nickname.
Evidence for this decision · 4 source-scoped observations

C359A (private workspace) — Molex describes product 430451200 as a Micro-Fit 3.0 right-angle header with 3.00 mm nominal pitch, dual-row arrangement and 12 circuits.

Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff. S469

C359B (private workspace) — Molex identifies 430451200 as a PCB header; its description does not establish the electrical assignment of a device cable or an intermate with Mini-Fit Jr.

Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff. S469

C359C (private workspace) — The manufacturer image for 430451200 depicts a shrouded board header with board-termination tails, not a cable-end housing.

Image-observable product role; no exact key or terminal geometry derived. S483 · S469

C358A (private workspace) — Molex product 874272002 is described as a Mini-Fit Jr. right-angle PCB header with 20 circuits and 4.20 mm nominal pitch.

Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff. S468

Manufacturer evidence is not an independent review, wiring assignment or hardware test.

Visual atlas / Series 02 / P359

Read the physical clue.

EXTERIOR · REVIEW PENDING
Molex Micro-Fit 3.0: A shrouded header with board-termination tails. Simplified Board-mounted header; Simplified oblique exterior. Not to scale; contact detail omitted.
Board-mounted header. 430451200 right-angle header. Simplified oblique exterior. Independently fitted; not a size reference.

What this view supports

  1. A shrouded header with board-termination tails
  2. This is the board side, not the cable-end housing

What remains unknown

The simplified front opening deliberately omits the cavity grid and polarization keys; it cannot establish mating.

The next useful check

Match the complete header and mating housing part numbers, position count and application wiring.

Mini-Fit Jr. is not Micro-Fit 3.0
1 added source-scoped observations

C359C The manufacturer image for 430451200 depicts a shrouded board header with board-termination tails, not a cable-end housing.

Image-observable product role; no exact key or terminal geometry derived. Source checked 2026-10-11; independent review pending. S483 · S469 · Evidence trail → (private workspace)

Exact source view, limits and rights

Visual inspection 2026-10-11. AI-assisted source inspection; independent drawing and rights reviews pending. These are original qualitative interpretations, not mechanical drawings, pinouts or approved connections.

Independent simplified vector interpretation and original factual paraphrase only. No manufacturer image, PDF, CAD, logo or traced path is redistributed. Independent technical and rights assessment remains pending.

  • S483 · Molex — 430451200 product image — Micro-Fit 3.0 header

    Manufacturer product image 0430451200_hires: oblique right-angle board header, front shroud and board tails.

    Visible exterior of named header only; polarization cavities and contacts are deliberately not reconstructed. Only the exact named source/example supports the observation. No universal mating, wiring, maximum rating or mechanical tolerance is inferred. Not identified; retrieval is not a revision date.

  • S469 · Molex — Micro-Fit 3.0 product 430451200

    Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits

    Only the described first-party series or precise example part; no dimensioned geometry, assembly mating certification or arbitrary equipment compatibility. Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

Canonical evidence is retained separately. Existing claim dates are unchanged; only new V118 claims have a new inspection date. No live electrical, energized probing, forced mating or optical-port inspection is recommended.

V117 / READER FIELD GUIDE / THE EXACT PART

Before you connect or replace

A 3.00 mm Micro-Fit header needs its exact mate

Molex product 430451200 is a right-angle dual-row 12-circuit example. Correct row count, mating series, housing, terminals and wiring must be established separately for the actual assembly.

Three checks and exact source trail ↗

Editorial decision guidance only. A connector identity or nominal pitch does not establish approved mating, safe wiring or a supported device combination.

The useful distinction

Recognize it. Then verify it.

Molex describes Micro-Fit 3.0 as a distinct 3.00 mm nominal-pitch family; product 430451200 is a right-angle, dual-row, 12-circuit header. [C359A]

Molex identifies 430451200 as a PCB header; its description does not establish the electrical assignment of a device cable or an intermate with Mini-Fit Jr. [C359B]

The manufacturer image for 430451200 depicts a shrouded board header with board-termination tails, not a cable-end housing. [C359C]

Molex 430451200: populated contacts: 12; dimensions: 10.29 mm (Manufacturer stated mated height); mounting: through-hole; shell: shrouded. Only Molex 430451200; no family-wide generalization. [C359D]

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
Nominal contacts12 (Molex 430451200 right-angle header)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
Positions / cavity span12 (Claim C359A)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
Populated contacts12 (Molex 430451200)S469Source-scoped examples are separate; select the exact variant and measured axis. Molex 430451200. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Contact rows2 (Claim C359A)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Molex describes product 430451200 as a Micro-Fit 3.0 right-angle header with 3.00 mm nominal pitch, dual-row arrangement and 12 circuits. | Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
Contact pitch3 mm Source-described pitch / centerline (Claim C359A)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
Connector roleRight-angle through-hole PCB connector (Molex 430451200)S469Source-scoped examples are separate; select the exact variant and measured axis. Molex 430451200. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Mountingboard (Claim C359B); board (Claim C359C); through-hole (Molex 430451200)S469 · S483 · S469 · S469Source-scoped examples are separate; select the exact variant and measured axis. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff. Image-observable product role; no exact key or terminal geometry derived. Molex 430451200. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Shell / formshrouded (Molex 430451200)S469Source-scoped examples are separate; select the exact variant and measured axis. Molex 430451200. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
ManufacturerMolex (430451200)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
SeriesMicro-Fit 3.0 (430451200)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.
Exact part / implementation430451200 (430451200)S469Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.

Not recorded: Dimensions / axis, Contact gender / arrangement, Coupling / latch, Keying / polarization, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits
  • Retained dimensions context (excluded from normalized contact/body field): 10.29 mm / Manufacturer stated mated height. Molex 430451200. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Sources: S469: Physical Specifications / circuits loaded, mated height, rows, orientation, pitch and termination style
Report a correction to these facts →

Bounded facts, visible unknowns

Specifications and limits

Molex Micro-Fit 3.0 connector family facts and limitations
Manufacturer-specific descriptor3.00 mm nominal pitch; example 430451200, dual-row, 12 circuits [C359A]
Mechanical dimensionsOnly the nominal series pitch/product descriptor in source text; no independent manufacturing or tolerance validation.
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.

Molex describes Micro-Fit 3.0 as a distinct 3.00 mm nominal-pitch family; product 430451200 is a right-angle, dual-row, 12-circuit header. Micro-Fit 3.0 is not Mini-Fit Jr.; similar-looking headers do not prove mating or a safe power harness.

Before you connect

What to check

  1. Find the exact manufacturer designation on the physical part or device bill of materials.
  2. Confirm the complete mating part number, termination, orientation and cable construction using the current maker drawing.
  3. Verify signals, cable assignment and system ratings from the exact equipment manual; do not energize an unverified assembly.
Trace a supported connection class →

Before connection or replacement

Find the exact manufacturer designation on the physical part or device bill of materials. Confirm the complete mating part number, termination, orientation and cable construction using the current maker drawing. Verify signals, cable assignment and system ratings from the exact equipment manual; do not energize an unverified assembly.

Evidence and engineering boundary

Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed. A physically similar housing or cable can have different retention, terminal geometry, wiring or ratings. Never infer an electrically safe assembly from the series name or pitch.

Your next step

Move from the form to the requirement.

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 ↑
C359ASource checked · pending review

Molex describes product 430451200 as a Micro-Fit 3.0 right-angle header with 3.00 mm nominal pitch, dual-row arrangement and 12 circuits.

Molex · Micro-Fit 3.0 product 430451200 ↗

Locator: Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits
Access: public page. Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

S469: full source recordInspect review dependencies → (private workspace)

Claim scope: Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.. Next review due 2027-01-08.

Back to first citation ↑
C359BSource checked · pending review

Molex identifies 430451200 as a PCB header; its description does not establish the electrical assignment of a device cable or an intermate with Mini-Fit Jr.

Molex · Micro-Fit 3.0 product 430451200 ↗

Locator: Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits
Access: public page. Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

S469: full source recordInspect review dependencies → (private workspace)

Claim scope: Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.. Next review due 2027-01-08.

Back to first citation ↑
C359CSource checked · pending review

The manufacturer image for 430451200 depicts a shrouded board header with board-termination tails, not a cable-end housing.

Molex · 430451200 product image — Micro-Fit 3.0 header ↗

Locator: Manufacturer product image 0430451200_hires: oblique right-angle board header, front shroud and board tails.
Access: public page. Only the exact named source/example supports the observation. No universal mating, wiring, maximum rating or mechanical tolerance is inferred. Not identified; retrieval is not a revision date.

S483: full source recordMolex · Micro-Fit 3.0 product 430451200 ↗

Locator: Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits
Access: public page. Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

S469: full source recordInspect review dependencies → (private workspace)

Claim scope: Image-observable product role; no exact key or terminal geometry derived.. Next review due 2027-01-09.

Back to first citation ↑
C359DSource checked · pending review

Molex 430451200: populated contacts: 12; dimensions: 10.29 mm (Manufacturer stated mated height); mounting: through-hole; shell: shrouded. Only Molex 430451200; no family-wide generalization.

Molex · Micro-Fit 3.0 product 430451200 ↗

Locator: Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits
Access: public page. Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

S469: full source recordInspect review dependencies → (private workspace)

Claim scope: Only Molex 430451200; no family-wide generalization.. 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)

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

Use this reference

From identity to the right next question

Evidence behind this page

Scope first. Source second. Approval separate.

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

Page scope: v117_lp06_verified_primary_product_example

Assessment 2026-10-22 · earliest scheduled source review 2027-01-08. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 2 source scopes, access limits and dates

S469 · Micro-Fit 3.0 product 430451200

Molex · Manufacturer / product-owner domain · inspected 2026-10-10 · due 2027-01-08

Within inspection window

Scoped support: Only the described first-party series or precise example part; no dimensioned geometry, assembly mating certification or arbitrary equipment compatibility.

Not established / limitations: Manufacturers describe the series or named example, not a complete compatible harness, exact pin assignment, or electrical approval. No independent hardware, manufacturing drawing, license or device-specific test was performed.

Locator: Part Details > General > Series 43045; Micro-Fit 3.0 right-angle header, 3.00 mm pitch, dual row, 12 circuits

S483 · 430451200 product image — Micro-Fit 3.0 header

Molex · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Visible exterior of named header only; polarization cavities and contacts are deliberately not reconstructed.

Not established / limitations: Only the exact named source/example supports the observation. No universal mating, wiring, maximum rating or mechanical tolerance is inferred. Not identified; retrieval is not a revision date.

Locator: Manufacturer product image 0430451200_hires: oblique right-angle board header, front shroud and board tails.

Trace 4 claims to their source records

C359A · P359

Molex describes product 430451200 as a Micro-Fit 3.0 right-angle header with 3.00 mm nominal pitch, dual-row arrangement and 12 circuits.

Claim scope: Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.

Source links: S469 · Evidence trail → (private workspace)

C359B · P359

Molex identifies 430451200 as a PCB header; its description does not establish the electrical assignment of a device cable or an intermate with Mini-Fit Jr.

Claim scope: Source-checked named manufacturer series or part number only; no unknown-cable compatibility or engineering signoff.

Source links: S469 · Evidence trail → (private workspace)

C359C · P359

The manufacturer image for 430451200 depicts a shrouded board header with board-termination tails, not a cable-end housing.

Claim scope: Image-observable product role; no exact key or terminal geometry derived.

Source links: S483 · S469 · Evidence trail → (private workspace)

C359D · P359

Molex 430451200: populated contacts: 12; dimensions: 10.29 mm (Manufacturer stated mated height); mounting: through-hole; shell: shrouded. Only Molex 430451200; no family-wide generalization.

Claim scope: Only Molex 430451200; no family-wide generalization.

Source links: S469 · 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.