Mini-Fit Jr. cable assemblies 路 4.20 mm reference

Custom Molex Mini-Fit Jr. Cable Assemblies

Specify the connector ends, wiring, finished length and cable construction your equipment needs. Zeakka coordinates finished assemblies using original Molex components or separately reviewed unbranded compatible candidates, as agreed for the quoted project.

Start with a part reference, photo, drawing or short description.

Coiled black jacketed cable assembly with black connector housings at both ends
Double-ended jacketed construction example 路 Component origin is confirmed in the quotation

Connection structures

Choose the assembly structure first

Connection structure describes what is fitted at each end and how the circuit branches. Routing and protection are selected separately.

Double-ended assembly with black connector housings and red, yellow and black discrete wires

Double-ended assemblies

Connector housings at both ends, with End A-to-End B wiring defined by the approved pinout and viewing direction.

Single-ended assembly with a black connector housing and four prepared wire leads

Single-ended leads

A Mini-Fit Jr. connector at one end and project-specified prepared wires or another agreed termination at the free end.

Inline extension assembly with two black mating connector housings and discrete wires

Inline extension assemblies

A cable-side plug and receptacle pair used as an inline extension. The exact mating set and interface are confirmed for the project.

Black cable assembly with a light-colored connector housing and three barrel-style plugs

Mixed-connector cables

Mini-Fit Jr. at one end and a different connector at the other, with each mating interface identified separately.

Multi-branch wire harness with several connector housings and a ring terminal

Branched harnesses

One input divided into multiple destinations according to the drawing, including branch lengths, breakout points and branch pinouts.

All five structures are available for custom projects. The quotation confirms the exact components, wiring, dimensions and finishing.

Send the closest structure plus your connector references, quantity and target length.

Routing & protection

Select routing and protection separately

These construction choices can be combined with the connection structure above. Suitability, dimensions and finishing remain project-specific.

Several single-ended connector assemblies with colored discrete wire leads

Discrete-wire routing

Individual leads can be routed and grouped to match the agreed drawing and installation space.

A set of connector cable examples showing different conductor grouping and jacketed constructions

Jacketed cable

An outer jacket can group conductors where the cable layout and project requirements call for it.

Looped multicolor wire bundle in braided sleeving with black connector housings at both ends

Braided sleeve

Braided sleeving can organize and protect grouped wires, subject to the agreed coverage and breakout arrangement.

Close-up of two light connector inserts within black molded outer housings

Molded connector housing

A molded outer housing can be reviewed as a construction option. Shape, cable exit and project checks must be agreed before tooling or samples.

Heat-shrink, labels and other finishing details can be added to the RFQ when required; they are not inferred from the photographs.

Review custom overmolded cable assemblies

Interface & wiring

Confirm the exact Mini-Fit Jr. interface

The 4.20 mm Mini-Fit Jr. reference identifies the product family, not a universal cable specification. Confirm the exact mating parts and assembly requirements for every project.

Identify each mating interface

Provide the housing or mating-part reference where possible. Also identify single-row or dual-row layout, populated cavities, latch or keying orientation and whether the view faces the contacts or the wires.

Define End A, End B and Pin 1

A photo or matching cavity count does not define the wiring. State the viewing direction and every end-to-end connection on the drawing or pinout table.

Use the cable assembly pinout guide
Connector ends
Housing and mating-part references, photos where useful, row layout, populated cavities and orientation.
Pinout
End A-to-End B connections, Pin 1 references and the viewing direction for each connector.
Wire & cable
Wire gauge, insulation, colors and any jacket, braid or sleeve requirements.
Dimensions
Finished length, measurement points, exposed leads, branches and breakout lengths.
Project context
Quantity, application, installation limits, operating conditions and sample timing.
Checks & documents
Required inspection, reporting, labels or documents to be agreed for the project.

Component sourcing

Keep original and compatible sourcing explicit

Zeakka is a trading and sourcing coordination company, not a factory. We coordinate the component basis, suitable production partner and sample review for the finished assembly.

Original Molex components for finished assemblies

Original housings and terminals can be sourced for a completed cable assembly, subject to the exact part references and availability. Original Molex components are not sold separately.

Unbranded compatible candidates

Compatible candidates are reviewed separately against the mating interface, drawing or sample and project requirements. Visual similarity is not proof of identical material, performance or specifications.

The quotation identifies the agreed sourcing basis and actual components. Product photographs alone do not establish brand origin or interchangeability.

Mini-Fit Jr. cable assembly questions

Can I request a quote without a drawing?

Yes. Start with a connector reference, mating-part number, photo or short description. Include the approximate quantity and length if known. We will identify the details still needed before a sample or production quotation is confirmed.

Can the assembly use original Molex components?

Yes. Original Molex housings and terminals can be sourced for a finished cable assembly, subject to the exact parts and availability. They are not sold separately. If your project allows it, we can also review unbranded compatible candidates and identify the agreed sourcing basis in the quotation.

Can photographs identify original or compatible components?

No. Appearance alone does not establish component origin or prove equal specifications. The quotation and approved project documents identify the actual sourcing basis and agreed checks.

Can the other end use another connector or can the harness branch?

Yes. Single-ended, mixed-connector and branched configurations can be reviewed. Provide each connector or wire-end requirement, branch length, breakout point and pinout so the complete assembly can be quoted.

Is Mini-Fit Jr. BMI a general replacement for a standard dual-row interface?

No. Mini-Fit Jr. BMI is a distinct blind-mate interface group and should not be treated as a generic substitute. Send the exact mating-part reference and board drawing so the BMI interface, orientation and mechanical alignment requirements can be reviewed before any supply scope is confirmed.

How are MOQ, samples and lead time confirmed?

They depend on the selected components, wire, quantity, finishing and any tooling or documentation. Send your estimated demand and timing; the quotation confirms minimum quantities, sample arrangements and lead time for that project.

What electrical checks are performed?

Our production partners perform continuity and short-circuit testing on each harness. Pull-force testing is sampled. Any additional inspection, test method or report should be stated in the RFQ and agreed for the project.

Send your Mini-Fit Jr. assembly requirement

Share the connector or mating-part references, End A-to-End B wiring, finished length, quantity and application. We will help clarify the remaining details and sourcing basis.

A photo or short description is enough to start; drawings and BOMs are optional.

Optional RFQ checklist