How do the JST S04B Series variants differ?

JST S04B Series part numbers differ by contact length - mating, contact length - post, contact shape and current rating. Use the selection guide above to pick by contact length - mating.

How many JST S04B Series part numbers are listed?

4 JST S04B Series part numbers are listed, each with specifications and a datasheet where available.

JST S04B Series

4 variants · JST

About the JST S04B Series

The JST S04B Series series groups 4 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 - mating, contact length - post and contact shape, so you can match the exact contact length - mating your application requires using the selection guide below. All listed JST S04B Series part numbers are active and orderable.

Select a variant by

Contact length - mating: - · 0.126\" (3.20mm)
Contact length - post: 0.126\" (3.20mm) · 0.134\" (3.40mm)
Contact shape: Circular · Rectangular · Square
Current rating: 2A · 3A
Features: Board Guide · Board Lock
Gender: Male Pin · Outer Shroud Contact
Insulation height: 0.248\" (6.30mm) · 0.256\" (6.50mm) · 0.299\" (7.60mm)
Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Polybutylene Terephthalate (PBT), Glass Filled

Shared specifications

Applications: -
Connector type: Header
Contact finish - mating: Tin
Contact finish - post: Tin
Contact finish thickness - mating: -
Contact finish thickness - post: -
Contact material: Copper Alloy
Fastening type: Locking Ramp
Ingress protection: -
Insulation color: Natural
Mated stacking heights: -
Material flammability rating: UL94 V-0

Variant comparison

Parameter	S04B-PASK-2	S04B-PASK-2(LF)(SN)	S04B-XASK-1(LF)(SN)	S04B-ZESK-2D
Contact length - mating	0.126\" (3.20mm)	0.126\" (3.20mm)	-	-
Contact length - post	0.134\" (3.40mm)	0.134\" (3.40mm)	0.126\" (3.20mm)	0.134\" (3.40mm)
Contact shape	Square	Square	Circular	Rectangular
Current rating	3A	3A	3A	2A
Features	Board Guide	Board Guide	Board Lock	Board Guide
Gender	Male Pin	Male Pin	Male Pin	Outer Shroud Contact
Insulation height	0.256\" (6.50mm)	0.256\" (6.50mm)	0.299\" (7.60mm)	0.248\" (6.30mm)
Insulation material	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polyamide (PA66), Nylon 6/6, Glass Filled	Polyamide (PA66), Nylon 6/6, Glass Filled

Request a quote on any JST S04B 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 S04B Series variants differ?: JST S04B Series part numbers differ by contact length - mating, contact length - post, contact shape and current rating. Use the selection guide above to pick by contact length - mating.
How many JST S04B Series part numbers are listed?: 4 JST S04B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST S04B Series?: Request a quote (RFQ) for any JST S04B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.