How do the JST JST B12B Series variants differ?

JST B12B 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 JST B12B Series part numbers are listed?

19 JST JST B12B Series part numbers are listed, each with specifications and a datasheet where available.

JST B12B Series

19 variants · JST

About the JST JST B12B Series series

The JST JST B12B Series series groups 19 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 B12B 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) · 0.130\" (3.30mm)
Contact length - post: - · 0.118\" (3.00mm) · 0.122\" (3.10mm) · 0.134\" (3.40mm)
Contact material: Brass · Copper Alloy
Contact shape: Circular · Square
Current rating: 1A · 2A · 3A
Fastening type: Detent Lock · Latch Holder · Locking Ramp

Variant comparison

Parameter	B12B-PADSS-1	B12B-PADSS-1F(LF)(SN)	B12B-PADSS-1(LF)(SN)	B12B-PADSS(LF)(SN)	B12B-PHDSS	B12B-PH-SM3-TB
Contact finish - mating	Tin-Lead	Tin	Tin	Tin	Tin-Lead	Tin-Lead
Contact finish - post	Tin-Lead	Tin	Tin	Tin	Tin-Lead	Tin-Lead
Contact length - mating	-	-	-	-	0.114\" (2.90mm)	0.130\" (3.30mm)
Contact length - post	0.134\" (3.40mm)	0.134\" (3.40mm)	0.134\" (3.40mm)	0.134\" (3.40mm)	0.118\" (3.00mm)	-
Contact material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Contact shape	Square	Square	Square	Square	Square	Square
Current rating	3A	3A	3A	3A	3A	2A
Fastening type	Locking Ramp	Locking Ramp	Locking Ramp	Locking Ramp	Detent Lock	Detent Lock

Shared specifications

Applications: -
Connector type: Header
Contact finish thickness - mating: -
Contact finish thickness - post: -
Gender: Male Pin
Ingress protection: -
Insulation color: Natural
Material flammability rating: UL94 V-0
Positions: 12
Shrouding: Shrouded - 4 Wall
Style: Board to Cable/Wire

Request a quote on any JST B12B 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 JST B12B Series variants differ?: JST B12B 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 JST B12B Series part numbers are listed?: 19 JST JST B12B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST JST B12B Series?: Request a quote (RFQ) for any JST B12B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants

B12B-PADSS-1

JST Sales America Inc. PAD series, Board to Cable/Wire, Header, Male Pin, 12 circuits, 2.00 mm pitch, 3 A, 250 V, through-hole solder, shrouded - 4 wall, locking ramp, UL94 V-0.

Style: Board to Cable/Wire · Series: PAD · Package: Bulk · Features: Board Guide · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.402\" (10.20mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 12 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin-Lead · Contact length - post: 0.134\" (3.40mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 12.4mm · Contact finish - mating: Tin-Lead · Material flammability rating: UL94 V-0