How do the JST B28B Series variants differ?

JST B28B Series part numbers differ by contact finish - mating, contact finish - post, contact length - mating and contact length - post. Use the selection guide above to pick by contact finish - mating.

How many JST B28B Series part numbers are listed?

6 JST B28B Series part numbers are listed, each with specifications and a datasheet where available.

JST B28B Series

6 variants · JST

About the JST B28B Series

The JST B28B Series series groups 6 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 thickness - mating of -. Variants differ by contact finish - mating, contact finish - post and contact length - mating, so you can match the exact contact finish - mating your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current JST B28B Series variants and discontinued ones from a single page.

Select a variant by

Contact finish - mating: Tin · Tin-Lead
Contact finish - post: Tin · Tin-Lead
Contact length - mating: - · 0.114\" (2.90mm)
Contact length - post: 0.118\" (3.00mm) · 0.122\" (3.10mm) · 0.134\" (3.40mm) · 0.138\" (3.50mm)
Contact shape: Circular · Square
Current rating: 1A · 3A
Fastening type: Detent Lock · Latch Holder · Locking Ramp
Features: - · Board Guide

Shared specifications

Applications: -
Connector type: Header
Contact finish thickness - mating: -
Contact finish thickness - post: -
Contact material: Copper Alloy
Gender: Male Pin
Ingress protection: -
Material flammability rating: UL94 V-0
Mounting type: Through Hole
Positions: 28
Rows: 2
Shrouding: Shrouded - 4 Wall

Variant comparison

Parameter	B28B-KRWHK-C	B28B-PHDSS	B28B-PHDSS(LF)(SN)	B28B-PUDSS-1(LF)(SN)	B28B-XADSS-N	B28B-XADSS-N(LF)(SN)
Contact finish - mating	Tin	Tin-Lead	Tin	Tin	Tin	Tin
Contact finish - post	Tin	Tin-Lead	Tin	Tin	Tin	Tin
Contact length - mating	-	0.114\" (2.90mm)	0.114\" (2.90mm)	-	-	-
Contact length - post	0.134\" (3.40mm)	0.118\" (3.00mm)	0.118\" (3.00mm)	0.122\" (3.10mm)	0.138\" (3.50mm)	0.138\" (3.50mm)
Contact shape	Square	Square	Square	Square	Circular	Circular
Current rating	1A	3A	3A	3A	3A	3A
Fastening type	Latch Holder	Detent Lock	Detent Lock	Latch Holder	Locking Ramp	Locking Ramp
Features	-	-	-	Board Guide	-	-

Request a quote on any JST B28B 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 B28B Series variants differ?: JST B28B Series part numbers differ by contact finish - mating, contact finish - post, contact length - mating and contact length - post. Use the selection guide above to pick by contact finish - mating.
How many JST B28B Series part numbers are listed?: 6 JST B28B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST B28B Series?: Request a quote (RFQ) for any JST B28B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.