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JST B03B-WPJES-3(LF)(SN) — Pin Headers, Sockets & Housings

JST WPJ B03B-WPJES-3(LF)(SN) Header, 3-Pos 5.00mm, 7A

MPNB03B-WPJES-3(LF)(SN)
Active

JST WPJ Series Header, Board to Cable/Wire, 3 Positions, 5.00mm Pitch, Through Hole, Solder, Tin Plating, Waterproof, Latch Holder, Bulk.

$0.3352Ref. 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

B03B-WPJES-3(LF)(SN) key specifications
ParameterValue
SeriesWPJ
TypeMale Pin
MountingThrough Hole
Connector typeHeader
Fastening typeLatch Holder
Voltage rating300V
Current rating7A
IP ratingWaterproof
Operating temperature-25°C ~ 85°C
Contact materialCopper Alloy
Insulation colorBlue
Insulation height0.843\" (21.41mm)

All specifications

B03B-WPJES-3(LF)(SN) additional specifications
ParameterValue
Insulation materialPolybutylene Terephthalate (PBT), Glass Filled
Mated stacking heights25.3mm
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
FeaturesBoard Guide
ShroudingShrouded - 4 Wall
TerminationSolder
Contact shapeSquare
Rows1
Pitch0.197\" (5.00mm)
Positions3
Contact finish - postTin
Contact length - post0.130\" (3.30mm)
Contact finish - matingTin

Product details

The waterproof rating means the mated pair can handle washdown environments, which is unusual for a shrouded header in this class.

A built-in board guide aids alignment during assembly. The 4-wall shrouding protects the pins from accidental shorting during handling.

The latch holder and IP-rated construction make it a candidate for environments with moisture exposure or moderate vibration — think washing machine control boards, automotive lamp harnesses, or outdoor HVAC controls.

Frequently asked questions

What is the pitch of JST B03B-WPJES-3(LF)(SN)?

The mating pitch is 0.197" (5.00 mm). This determines the PCB footprint and the matching receptacle family.

Does JST B03B-WPJES-3(LF)(SN) have a latch or locking feature?

Yes, it uses a latch holder fastening type for positive retention when mated with the WPJ receptacle housing.

What is the mating connector for the WPJ series?

This header mates with the corresponding WPJ series receptacle housing (crimp-style, sold separately). The latch holder on the header engages with the receptacle's locking feature.

Is this header through hole or surface mount?

It is a through-hole solder termination header with a 0.130" post length.

Is JST B03B-WPJES-3(LF)(SN) RoHS compliant?

The (LF)(SN) suffix in the order code indicates lead-free and tin-plated termination, consistent with RoHS compliance requirements.