How do the JST B04B Series variants differ?

JST B04B Series part numbers differ by contact length - post, contact shape, current rating and fastening type. Use the selection guide above to pick by contact length - post.

How many JST B04B Series part numbers are listed?

7 JST B04B Series part numbers are listed, each with specifications and a datasheet where available.

JST B04B Series

7 variants · JST

About the JST B04B Series

The JST B04B Series series groups 7 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common applications of -, connector type of Header and contact finish - mating of Tin. Variants differ by contact length - post, contact shape and current rating, so you can match the exact contact length - post your application requires using the selection guide below. All listed JST B04B Series part numbers are active and orderable.

Select a variant by

Contact length - post: 0.130\" (3.30mm) · 0.134\" (3.40mm)
Contact shape: Circular · Rectangular · Square
Current rating: 2A · 3A
Fastening type: Latch Holder · Locking Ramp
Features: - · Board Guide
Gender: Male Pin · Outer Shroud Contact
Ingress protection: - · Dust Tight, Waterproof
Insulation height: 0.335\" (8.51mm) · 0.346\" (8.80mm) · 0.654\" (16.61mm)

Shared specifications

Applications: -
Connector type: Header
Contact finish - mating: Tin
Contact finish - post: Tin
Contact finish thickness - mating: -
Contact finish thickness - post: -
Contact length - mating: -
Contact material: Copper Alloy
Insulation color: Natural
Material flammability rating: UL94 V-0
Mounting type: Through Hole
Overall contact length: -

Variant comparison

Parameter	B04B-JWPF-EK-R	B04B-JWPF-SK-R(LF)(SN)	B04B-XASK-1	B04B-XASK-1(LF)(SN)	B04B-ZESK-1D	B04B-ZESK-1D(T)(LF)(SN)(N)
Contact length - post	0.130\" (3.30mm)	0.130\" (3.30mm)	0.134\" (3.40mm)	0.134\" (3.40mm)	0.134\" (3.40mm)	0.134\" (3.40mm)
Contact shape	Square	Square	Circular	Circular	Rectangular	Rectangular
Current rating	3A	3A	3A	3A	2A	2A
Fastening type	Latch Holder	Latch Holder	Locking Ramp	Locking Ramp	Locking Ramp	Locking Ramp
Features	Board Guide	Board Guide	-	-	Board Guide	Board Guide
Gender	Male Pin	Male Pin	Male Pin	Male Pin	Outer Shroud Contact	Outer Shroud Contact
Ingress protection	Dust Tight, Waterproof	Dust Tight, Waterproof	-	-	-	-
Insulation height	0.654\" (16.61mm)	0.654\" (16.61mm)	0.346\" (8.80mm)	0.346\" (8.80mm)	0.335\" (8.51mm)	0.335\" (8.51mm)

Request a quote on any JST B04B Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the JST B04B Series variants differ?: JST B04B Series part numbers differ by contact length - post, contact shape, current rating and fastening type. Use the selection guide above to pick by contact length - post.
How many JST B04B Series part numbers are listed?: 7 JST B04B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST B04B Series?: Request a quote (RFQ) for any JST B04B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.