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

While several connectors share the same 1.25mm pitch and 2-pin SMT configuration, a true pin-to-pin replacement requires identical mechanical dimensions. No alternatives are verified as drop-in; always compare datasheets for footprint and shroud dimensions.

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

The main risk is mechanical incompatibility. Ensure the substitute's PCB footprint matches your layout and that its shroud mates correctly with the JST GH series housing. Also verify electrical ratings like temperature range.

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

The SM02B-GHS-TB(LF)(SN) is a popular 2-pin, 1.25mm pitch, right-angle SMT header from JST's GH series. Finding a substitute requires careful verification of the mechanical footprint and mating interface.

AI replacement insight

Package riskhigh

Footprint and mating interface must be verified from datasheets.

Electrical risklow

Most alternatives meet or exceed key electrical ratings.

Can it be replaced directly?

No verified direct drop-in replacement has been identified. All candidates require manual verification of mechanical drawings for footprint and mating interface.

Best replacement path

Find a connector from a different manufacturer that explicitly states compatibility with the JST GH series or has identical mechanical drawings.

Main risk

Mechanical incompatibility. Connectors with the same pitch and pin count from different series will not mate with the JST GH series housing.

Recommended alternatives

Strong parametric match; verify mechanical fit from datasheet.

View details

Alternative comparison matrix

Feature / factor	SM02B-GHS-TB(LF)(SN)	ZX-MX1.25-2PWT	HCZZ0001-2	Compatibility / risk
Pitch	1.25 mm	1.25 mm	1.25 mm	1.25 mm — Pitch matches.; HCZZ0001-2: Pitch matches.
Pin Count	2	2	2	2 — Pin count matches.; HCZZ0001-2: Pin count matches.
Package	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle — Mounting type and orientation match. Footprint requires verification.; HCZZ0001-2: Mounting type and orientation match. Footprint requires verification.
Voltage	50 V	125 V	125 V	125 V — Higher voltage rating is a safe upgrade.; HCZZ0001-2: Higher voltage rating is a safe upgrade.
Current	1.0 A	1.0 A	1.0 A	1.0 A — Current rating matches.; HCZZ0001-2: Current rating matches.
Temperature	-25°C to +85°C	Not specified	-	Not specified — Operating temperature range is missing and must be checked.

Application & sourcing insights

Questions & answers

Parts like Megastar's ZX-MX1.25-2PWT are strong functional candidates with matching pitch, pin count, and mounting. However, you must verify the mechanical drawing in the datasheet to ensure PCB footprint and mating compatibility.