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B12B-XH-A(LF)(SN) — JST product photo
JST

JST B12B-XH-A(LF)(SN) Header – 12 Pos, 2.5mm Pitch

MPNB12B-XH-A(LF)(SN)
Active

JST XH series, Board to Cable/Wire header, 12 positions, 2.50mm pitch, Through Hole, Tin contacts, shrouded 4-wall, detent lock, UL94 V-0, Active

$0.5100Ref. price · indicative, final on quote
B12B-XH-A(LF)(SN) datasheet
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

B12B-XH-A(LF)(SN) Technical Specifications
ParameterValue
SeriesXH
GenderMale Pin
Mounting typeThrough Hole
Connector typeHeader
Fastening typeDetent Lock
Voltage rating250V
Current rating3A
Operating temperature-25°C~85°C
Contact materialBrass
Insulation colorNatural
Insulation height0.276\" (7.00mm)
Insulation materialPolyamide (PA66), Nylon 6/6
Mated stacking heights9.8mm
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
ShroudingShrouded - 4 Wall
TerminationPress-Fit, Solder
Contact shapeSquare
Rows1
Pitch0.098\" (2.50mm)
Positions12
Contact finish - postTin
Contact length - post0.134\" (3.40mm)
Contact finish - matingTin

Product details

12 Positions at 2.50mm Pitch – JST XH Series Header

The B12B-XH-A(LF)(SN): This is a JST XH series Board to Cable/Wire header, 12 positions loaded, single row, on a 2.50mm pitch. The 9.8mm mated stack height keeps the assembly compact for tight enclosures.

Termination is press-fit, solder – the square pins go through the plated holes and are wave-soldered.

Position Count vs the 13-Circuit Sibling

The closest peer in the XH series is the B13B-XH-A (and its LF(SN) variant) – identical 2.50mm pitch, same 3A/250V rating, same shrouded 4-wall and detent lock. The only difference is 13 positions vs 12.

Frequently asked questions

What is the pitch of the JST B12B-XH-A header?

The mating pitch is 0.098" (2.50mm).

Is B12B-XH-A(LF)(SN) RoHS compliant?

Yes, it is RoHS compliant per JST's listing.

When sourcing B12B-XH-A(LF)(SN), what's the closest functional second-source?

The B12B-XH-AM(LF)(SN) is the closest alternate – same 12 positions, same pitch, same ratings, but adds a board guide feature. Check if your board layout accommodates the guide before substituting.