How do the JST B20B Series variants differ?

JST B20B Series part numbers differ by contact length - mating, contact length - post, contact material and contact shape. Use the selection guide above to pick by contact length - mating.

How many JST B20B Series part numbers are listed?

8 JST B20B Series part numbers are listed, each with specifications and a datasheet where available.

JST B20B Series

8 variants · JST

About the JST B20B Series

The JST B20B Series series groups 8 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 material, so you can match the exact contact length - mating your application requires using the selection guide below. All listed JST B20B Series part numbers are active and orderable.

Select a variant by

Contact length - mating: - · 0.114\" (2.90mm)
Contact length - post: 0.118\" (3.00mm) · 0.122\" (3.10mm) · 0.126\" (3.20mm) · 0.134\" (3.40mm) · 0.138\" (3.50mm)
Contact material: Brass · Copper Alloy
Contact shape: Circular · Square
Current rating: 1A · 3A
Fastening type: Detent Lock · Latch Holder · Locking Ramp
Features: - · Board Guide
Insulation color: Gray · Ivory · Natural

Shared specifications

Applications: -
Connector type: Header
Contact finish - mating: Tin
Contact finish - post: Tin
Contact finish thickness - mating: -
Contact finish thickness - post: -
Gender: Male Pin
Ingress protection: -
Material flammability rating: UL94 V-0
Mounting type: Through Hole
Positions: 20
Shrouding: Shrouded - 4 Wall

Variant comparison

Parameter	B20B-KRWHK-C(LF)(SN)	B20B-PADSS	B20B-PHDSS(LF)(SN)	B20B-PNDZS-1	B20B-PUDSS-1	B20B-XADSS-N
Contact length - mating	-	-	0.114\" (2.90mm)	-	-	-
Contact length - post	0.134\" (3.40mm)	0.134\" (3.40mm)	0.118\" (3.00mm)	0.126\" (3.20mm)	0.122\" (3.10mm)	0.138\" (3.50mm)
Contact material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Contact shape	Square	Square	Square	Square	Square	Circular
Current rating	1A	3A	3A	3A	3A	3A
Fastening type	Latch Holder	Locking Ramp	Detent Lock	Locking Ramp	Latch Holder	Locking Ramp
Features	-	-	-	Board Guide	Board Guide	-
Insulation color	Gray	Natural	Natural	Ivory	Natural	Natural

Request a quote on any JST B20B 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 B20B Series variants differ?: JST B20B Series part numbers differ by contact length - mating, contact length - post, contact material and contact shape. Use the selection guide above to pick by contact length - mating.
How many JST B20B Series part numbers are listed?: 8 JST B20B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST B20B Series?: Request a quote (RFQ) for any JST B20B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.