How do the JST BM12B Series variants differ?

JST BM12B Series part numbers differ by contact shape, current rating, fastening type and features. Use the selection guide above to pick by contact shape.

How many JST BM12B Series part numbers are listed?

9 JST BM12B Series part numbers are listed, each with specifications and a datasheet where available.

JST BM12B Series

9 variants · JST

About the JST BM12B Series

The JST BM12B Series series groups 9 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 shape, current rating and fastening type, so you can match the exact contact shape your application requires using the selection guide below. All listed JST BM12B Series part numbers are active and orderable.

Select a variant by

Contact shape: - · Circular · Rectangular · Square
Current rating: 0.2A, 0.5A · 1A · 2A · 3A
Fastening type: Latch Holder · Locking Ramp · Push-Pull
Features: Board Guide, Pick and Place, Solder Retention · Pick and Place, Solder Retention · Solder Retention
Gender: Male Pin · Outer Shroud Contact
Insulation height: 0.106\" (2.70mm) · 0.167\" (4.25mm) · 0.219\" (5.56mm) · 0.236\" (6.00mm) · 0.350\" (8.89mm) · 0.370\" (9.40mm)
Mated stacking heights: 3.95mm · 4.9mm · 7.8mm · 9.5mm · 11.1mm, 16mm, 16.2mm · 11.9mm
Operating temperature: -25°C ~ 85°C · -25°C~85°C

Shared specifications

Applications: -
Connector type: Header
Contact finish - mating: Tin
Contact finish - post: Tin
Contact finish thickness - mating: -
Contact finish thickness - post: -
Contact length - mating: -
Contact length - post: -
Contact material: Copper Alloy
Ingress protection: -
Insulation color: Natural
Insulation material: Polyamide (PA), Nylon

Variant comparison

Parameter	BM12B-NSHSS-TBT	BM12B-PASS-1-TFT	BM12B-SRSS-TB	BM12B-SURS-TF	BM12B-SURS-TF(LF)(SN)	BM12B-XASS-TF
Contact shape	-	Square	Square	Rectangular	Rectangular	Circular
Current rating	1A	3A	1A	0.2A, 0.5A	0.2A, 0.5A	3A
Fastening type	Latch Holder	Locking Ramp	Push-Pull	Push-Pull	Push-Pull	Locking Ramp
Features	Pick and Place, Solder Retention	Board Guide, Pick and Place, Solder Retention	Solder Retention	Solder Retention	Solder Retention	Solder Retention
Gender	Male Pin	Male Pin	Male Pin	Outer Shroud Contact	Outer Shroud Contact	Male Pin
Insulation height	0.236\" (6.00mm)	0.350\" (8.89mm)	0.167\" (4.25mm)	0.106\" (2.70mm)	0.106\" (2.70mm)	0.370\" (9.40mm)
Mated stacking heights	7.8mm	11.1mm, 16mm, 16.2mm	4.9mm	3.95mm	3.95mm	11.9mm
Operating temperature	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C	-25°C~85°C	-25°C ~ 85°C

Request a quote on any JST BM12B 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 BM12B Series variants differ?: JST BM12B Series part numbers differ by contact shape, current rating, fastening type and features. Use the selection guide above to pick by contact shape.
How many JST BM12B Series part numbers are listed?: 9 JST BM12B Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for JST BM12B Series?: Request a quote (RFQ) for any JST BM12B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.