What risks should I check before replacing BM02B-SURS-TF(LF)(SN)?

The primary risk is mechanical incompatibility. Verify the PCB land pattern, connector height, and orientation (top-entry vs. side-entry). Also confirm the mating connector compatibility if using a cross-vendor solution.

BM02B-SURS-TF(LF)(SN) Alternatives, Datasheet & Cross Reference | JST

The JST BM02B-SURS-TF(LF)(SN) is a 2-pin, 0.8mm pitch top-entry SMT header. Finding a direct replacement requires careful verification of mechanical dimensions and PCB footprint.

AI replacement insight

Package riskhigh

PCB footprint and orientation are critical and differ among candidates.

Electrical risklow

Key electrical ratings (voltage, current) are easily matched or exceeded.

Sourcing riskmedium

Cross-vendor options exist but require careful validation.

Can it be replaced directly?

Direct replacement for BM02B-SURS-TF(LF)(SN) should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

A functional alternative from the same series (JST SM02B...) or a parametrically similar cross-vendor part (HCTL HC-0.8-2PLT).

Main risk

Mechanical mismatch in PCB footprint or connector orientation (top-entry vs. side-entry).

Recommended alternatives

A functional alternative from the same JST SUR series, but with a side-entry (right-angle) orientation.

View details

Alternative comparison matrix

Feature / factor	BM02B-SURS-TF(LF)(SN)	SM02B-SURS-TF(LF)(SN)	HC-0.8-2PLT	Compatibility / risk
Package	Top-entry	Side-entry	Vertical SMT	Side-entry / Vertical SMT — Orientation is different (side-entry vs top-entry).; HC-0.8-2PLT: Orientation matches, but footprint requires verification.
Family	JST SUR	JST SUR	-	JST SUR — Both parts are from the same JST SUR series.
Current	0.5A	1.0A	0.5A	1.0A / 0.5A — Higher current rating.; HC-0.8-2PLT: Current rating matches.
Voltage	30V DC	30V AC/DC	30V AC/DC	30V AC/DC — Voltage rating is compatible.; HC-0.8-2PLT: Voltage rating is compatible.
Pin Count	2	-	2	2 — Pin count matches.
Pitch	0.8mm	-	0.8mm	0.8mm — Pitch matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for BM02B-SURS-TF(LF)(SN) are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.