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JST B8B-XH-A(LF)(SN) — Pin Headers

B8B-XH-A(LF)(SN) JST XH Header 8 Pos 2.5mm Pitch Tin

MPNB8B-XH-A(LF)(SN)
Active

JST XH series, Board to Cable/Wire, 8 Positions, 2.50mm Pitch, Through Hole, Tin Mating Finish, Shrouded - 4 Wall, Detent Lock, UL94 V-0

$0.3700Ref. price · indicative, final on quote
JST B8B-XH-A(LF)(SN) datasheet (PDF)
RoHSRoHS Compliant
SeriesXH
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

B8B-XH-A(LF)(SN) key specifications
ParameterValue
SeriesXH
TypeMale Pin
MountingThrough 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

All specifications

B8B-XH-A(LF)(SN) additional specifications
ParameterValue
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)
Positions8
Contact finish - postTin
Contact length - post0.134\" (3.40mm)
Contact finish - matingTin

Product details

What This 8-Pin XH Header Does for the Design

Pitch, Positions, and the Board Footprint

At 2.50mm pitch, this header routes eight signals in a 17.5mm-wide footprint on the PCB — the row spacing leaves room for trace fan-out on a single-layer board. The through-hole posts are 0.134" (3.40mm) long, suited for standard 1.6mm-thick PCBs with enough tail length for a reliable solder fillet on the opposite side.

Tin Contacts and the Current Ceiling

The mating finish is tin, not gold — this keeps the per-unit cost down but limits the connector to roughly 30–50 mating cycles before the tin oxide layer builds resistance. For applications requiring frequent disconnect-reconnect (field-service or battery swapping), the gold-plated sibling B8B-XH-AM(LF)(SN) is the better choice.

The (LF)(SN) suffix confirms RoHS compliance and a tin-plated contact finish.

Frequently asked questions

What's the alternative if B8B-XH-A(LF)(SN) is out of stock?

The closest functional equivalent is the B8B-XH-AM(LF)(SN) — same 8 positions, 2.50mm pitch, through-hole, and detent lock, but with gold-plated contacts and a board guide. It's a direct drop-in replacement on the PCB footprint. The non-RoHS variant B8B-XH-A is also pin-compatible if lead-free compliance isn't required.