What risks should I check before replacing S2B-ZR(LF)(SN)?

The main risks are mechanical. Ensure the replacement has the same right-angle orientation, 1.5mm pitch, and PCB footprint. For cross-vendor parts, also verify housing dimensions and material compatibility with the mating connector.

S2B-ZR(LF)(SN) Alternatives, Datasheet & Cross Reference | JST

S2B-ZR(LF)(SN) is a 2-pin, 1.5mm pitch right-angle header from JST's ZH series, used in wire-to-board applications. When seeking alternatives, focus on matching the pitch, pin count, and right-angle mounting configuration.

AI replacement insight

Package riskmedium

While many parts share the 'ZH 1.5mm' name, subtle differences in housing and pin layout exist. Datasheet verification is critical.

Electrical risklow

Most alternatives match or exceed the 50V/1A rating. Verify the voltage rating is acceptable for your design.

Sourcing risklow

The JST ZH series is a popular standard with many compatible second-source manufacturers available.

Can it be replaced directly?

Direct replacement for S2B-ZR(LF)(SN) should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with S2B-ZR-3.4(LF)(SN) from JST, verifying the minor part number difference. If unavailable, evaluate cross-vendor ZH-series compatible parts, focusing on mechanical drawing comparison.

Main risk

Mechanical incompatibility. The primary risk is a mismatch in PCB footprint, housing dimensions, or mounting orientation (right-angle vs. vertical).

Recommended alternatives

A very similar 2-pin, 1.5mm pitch JST header; confirm the '-3.4' suffix detail from the datasheet.

View details

Alternative comparison matrix

Feature / factor	S2B-ZR(LF)(SN)	S2B-ZR-3.4(LF)(SN)	HC-ZH1.5-2AW	WAFER-ZH1.5-2PWB	Compatibility / risk
Mpn	S2B-ZR(LF)(SN)	S2B-ZR-3.4(LF)(SN)	-	-	S2B-ZR-3.4(LF)(SN) — Minor suffix difference ('-3.4') may indicate PCB thickness spec.
Manufacturer	JST	JST	HCTL	XUNPU	JST / HCTL / XUNPU — Same manufacturer.; HC-ZH1.5-2AW: Cross-vendor alternative.; WAFER-ZH1.5-2PWB: Cross-vendor alternative.
Voltage	50V	50V	100V	250V	50V / 100V / 250V — Voltage rating matches.; HC-ZH1.5-2AW: Candidate has higher voltage rating.; WAFER-ZH1.5-2PWB: Candidate has higher voltage rating.
Current	1A	1A	1A	1A	1A — Current rating matches.; HC-ZH1.5-2AW: Current rating matches.; WAFER-ZH1.5-2PWB: Current rating matches.
Package	Through Hole, Right Angle	-	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle — Mounting type matches.; WAFER-ZH1.5-2PWB: Mounting type matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for S2B-ZR(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.