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Molex 0039302040 — Pin Headers, Sockets & Housings

Molex 0039302040 Mini-Fit Jr Header, 4 Pos, 4.20mm, Active

MPN0039302040
Active

Molex Mini-Fit Jr 5566 series, board-to-cable/wire header, 4 circuits, 4.20mm pitch, through-hole solder termination, shrouded with board lock and locking ramp, tin-plated contacts, UL94 V-0 housing.

$1.1300Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

0039302040 key specifications
ParameterValue
SeriesMini-Fit Jr 5566
TypeMale Pin
MountingThrough Hole
Connector typeHeader
Fastening typeLocking Ramp
Contact materialBrass
Insulation colorNatural
Insulation height0.504\" (12.80mm)
Insulation materialPolyamide (PA66), Nylon 6/6
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
FeaturesBoard Lock

All specifications

0039302040 additional specifications
ParameterValue
PackageTray
ShroudingShrouded - 4 Wall
TerminationSolder
ApplicationsGeneral Purpose, Industrial, Telecommunications
Contact shapeSquare
Rows1
Pitch0.165\" (4.20mm)
Positions4
Contact finish - postTin
Contact length - post0.138\" (3.50mm)
Contact finish - matingTin
Contact finish thickness - post35.0µin (0.90µm)
Contact finish thickness - mating35.4µin (0.90µm)

Product details

The 0039302040: This is a 4-circuit, single-row header from the Mini-Fit Jr 5566 series, designed to connect a wire harness to a PCB.

Pitch, pin count, and footprint fit

At 4.20mm pitch and 4 positions, this header matches the standard Mini-Fit Jr receptacle footprint. The insulation height of 0.504" (12.80mm) means the mated connector stack stays within a reasonable z-height for enclosed assemblies.

Mates with Mini-Fit Jr 5556-series receptacle housings (e.g., Molex 39-01-2040 or similar 4-circuit crimp housings). No secondary TPA on this header side, but the ramp alone provides enough retention for most static installations.

Frequently asked questions

Where to buy Molex 0039302040?

Buyers need to find authorized distributors for this specific part to ensure genuine product and availability.

What is the price of Molex 0039302040?

Pricing is crucial for budgeting and cost comparison across suppliers.

Is Molex 0039302040 in stock?

Stock status determines lead time and whether the part is available for immediate shipment.

What is the mating connector for 0039302040?

Designers must know the compatible cable-side connector to ensure proper connection in the system.

What is the pitch of Molex 0039302040?

Pitch is a critical dimension for ensuring mechanical fit with the PCB layout.

What is the replacement for 0039302040?

If the part is obsolete or unavailable, engineers and buyers need a drop-in alternative to avoid redesign.