How do the JST S03B Series variants differ?

JST S03B Series part numbers differ by contact length - mating, contact length - post, contact shape and features. Use the selection guide above to pick by contact length - mating.

How many JST S03B Series part numbers are listed?

4 JST S03B Series part numbers are listed, each with specifications and a datasheet where available.

JST S03B Series

4 variants · JST

About the JST S03B Series

The JST S03B 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 S03B 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 · Square
Features: Board Guide · Board Lock
Insulation height: 0.256\" (6.50mm) · 0.299\" (7.60mm)
Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Polybutylene Terephthalate (PBT), Glass Filled
Operating temperature: -25°C ~ 85°C · -25°C~85°C
Pitch: 0.079\" (2.00mm) · 0.098\" (2.50mm)

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
Current rating: 3A
Fastening type: Locking Ramp
Gender: Male Pin
Ingress protection: -
Insulation color: Natural

Variant comparison

Parameter	S03B-PASK-2	S03B-PASK-2(LF)(SN)	S03B-XASK-1	S03B-XASK-1(LF)(SN)
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)	0.126\" (3.20mm)
Contact shape	Square	Square	Circular	Circular
Features	Board Guide	Board Guide	Board Lock	Board Lock
Insulation height	0.256\" (6.50mm)	0.256\" (6.50mm)	0.299\" (7.60mm)	0.299\" (7.60mm)
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
Operating temperature	-25°C ~ 85°C	-25°C~85°C	-25°C ~ 85°C	-25°C~85°C
Pitch	0.079\" (2.00mm)	0.079\" (2.00mm)	0.098\" (2.50mm)	0.098\" (2.50mm)

Request a quote on any JST S03B 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 S03B Series variants differ?: JST S03B Series part numbers differ by contact length - mating, contact length - post, contact shape and features. Use the selection guide above to pick by contact length - mating.
How many JST S03B Series part numbers are listed?: 4 JST S03B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST S03B Series?: Request a quote (RFQ) for any JST S03B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.