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BM12B-XASS-TF(LF)(SN) — JST product photo
JST

BM12B-XASS-TF(LF)(SN) JST XA Header 12-Pos 2.5mm SMT

MPNBM12B-XASS-TF(LF)(SN)
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JST XA series, BM12B-XASS-TF(LF)(SN), 12-position single-row SMT header, 2.50mm pitch, 3A/250V, tin-plated male pins, shrouded 4-wall, locking ramp, UL94 V-0 natural PA housing.

$1.6800Ref. price · indicative, final on quote
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • New & original stockTraceable channels only — no mixed lots, no re-taped reels.
  • Factory packaging where availableSealed reels, trays and bags; cut quantities always stated on the quote.
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Specifications

BM12B-XASS-TF(LF)(SN) Technical Specifications
ParameterValue
SeriesXA
GenderMale Pin
Mounting typeSurface Mount
Connector typeHeader
Fastening typeLocking Ramp
Voltage rating250V
Current rating3A
Operating temperature-25°C~85°C
Contact materialCopper Alloy
Insulation colorNatural
Insulation height0.370\" (9.40mm)
Insulation materialPolyamide (PA), Nylon
Mated stacking heights11.9mm
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
FeaturesSolder Retention
ShroudingShrouded - 4 Wall
TerminationSolder
Contact shapeCircular
Rows1
Pitch0.098\" (2.50mm)
Positions12
Contact finish - postTin
Contact finish - matingTin

Product details

12-Position SMT Header with Locking Ramp — JST XA Series

The header mates with JST XA series crimp receptacles (sold separately) to form a wire-to-board interconnect. The 11.9 mm mated stack height defines the z-height budget for the enclosure — confirm clearance before layout.

Current Rating, Plating, and Operating Range

SMT Termination and Solder Retention

The retention pads reduce shear stress on the signal joints, which matters when the mated cable is routed near the connector and subject to pull forces.

The XA series includes other position counts for the same form factor. The 12-position BM12B-XASS-TF(LF)(SN) sits between the 6-position BM06B-XASS-TF(LF)(SN) and the 15-position BM15B-XASS-TF.

Frequently asked questions

What is the mating connector for BM12B-XASS-TF(LF)(SN)?

This header mates with JST XA series crimp receptacles (sold separately) to form a board-to-cable/wire connection.

Is BM12B-XASS-TF(LF)(SN) RoHS compliant?

Yes, the (LF)(SN) suffix indicates RoHS compliance and a lead-free finish. The part is listed as RoHS Compliant.