Is there a pin-compatible replacement for SM02B-SRSS-TB(LF)(SN)?

While several parts are designed as equivalents, true pin-compatibility must be confirmed by comparing the mechanical drawings and footprint dimensions in the datasheets. Do not assume a part is a drop-in replacement without this check.

What risks should I check before replacing SM02B-SRSS-TB(LF)(SN)?

The main risk is mechanical mismatch; check the PCB footprint, connector height, and shroud dimensions. Also, verify contact material and plating, as differences can affect long-term reliability and mating cycles.

SM02B-SRSS-TB(LF)(SN) Alternatives, Datasheet & Cross Reference | JST

SM02B-SRSS-TB(LF)(SN) is a popular 2-pin, 1.0mm pitch JST SH series connector. Several manufacturers offer potential form-fit-function alternatives that require datasheet verification for the mechanical footprint.

AI replacement insight

Package riskmedium

Footprint and height must be verified from datasheets to ensure mechanical fit.

Electrical risklow

Multiple candidates match key voltage, current, and temperature ratings.

Sourcing risklow

Many alternative manufacturers exist for this popular connector series.

Can it be replaced directly?

No officially verified direct replacement is available without datasheet comparison. Several parts are strong functional candidates that require mechanical review.

Best replacement path

Cross-reference to other manufacturers' SH-series compatible connectors like Megastar ZX-SH1.0-2PWT or XUNPU WAFER-SH1.0-2PWB.

Main risk

Mechanical incompatibility. The PCB footprint and connector height are the most critical factors to verify from datasheets.

Recommended alternatives

XUNPU offers this 2-pin, 1.0mm pitch SMT header with matching electrical ratings and a wider operating temperature range.

View details

Alternative comparison matrix

Feature / factor	SM02B-SRSS-TB(LF)(SN)	WAFER-SH1.0-2PWB	ZX-SH1.0-2PWT	HC-1.0-2PWT	Compatibility / risk
Temperature	-25°C to +85°C	-40°C to +85°C	-	-	-40°C to +85°C — Wider operating temperature range.
Pitch	1.0mm	1.0mm	1.0mm	1.0mm	1.0mm — Pitch matches.; ZX-SH1.0-2PWT: Pitch matches target.; HC-1.0-2PWT: Pitch matches target.
Package	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle — Mechanical footprint requires datasheet verification.; ZX-SH1.0-2PWT: Mechanical footprint requires datasheet verification.; HC-1.0-2PWT: Mechanical footprint requires datasheet verification.
Current	1.0A	1.0A	1.0A	1.0A	1.0A — Current rating matches.; ZX-SH1.0-2PWT: Current rating matches.; HC-1.0-2PWT: Current rating matches.
Voltage	50V	50V	50V	50V	50V — Voltage rating matches.; ZX-SH1.0-2PWT: Voltage rating matches.; HC-1.0-2PWT: Voltage rating matches.
Pin Count	2	-	2	2	2 — Pin count matches.; HC-1.0-2PWT: Pin count matches.

Application & sourcing insights

Questions & answers

The best alternatives are likely form-fit-function compatible parts like Megastar's ZX-SH1.0-2PWT or XUNPU's WAFER-SH1.0-2PWB. They match key electrical specs, but you must verify their mechanical drawings against your PCB layout.