Is there a pin-compatible replacement for S2B-PH-SM4-TB(LF)(SN)?

While several parts offer similar form and function, a true drop-in, pin-compatible replacement requires careful comparison of the mechanical drawings in both datasheets. 2.0-2PWTDK is a candidate for pin-compatibility, but requires engineering review.

What risks should I check before replacing S2B-PH-SM4-TB(LF)(SN)?

The main risks are mechanical. Verify the PCB footprint (pad layout), connector height, and compatibility with the mating housing. Also confirm the substitute's housing material and plating are suitable for your application's environment.

S2B-PH-SM4-TB(LF)(SN) Alternatives, Datasheet & Cross Reference | JST

S2B-PH-SM4-TB(LF)(SN) is a popular 2.0mm pitch, 2-pin side-entry SMT header from JST. When seeking alternatives, focus on matching the pitch, mounting style, and electrical ratings to ensure compatibility.

AI replacement insight

Package riskmedium

Pitch and mounting match, but exact footprint dimensions need verification.

Electrical risklow

Candidate meets or exceeds voltage and current ratings.

Sourcing riskmedium

The alternative is from a different vendor, which may have different supply chain characteristics.

Can it be replaced directly?

No direct, verified drop-in replacement has been identified. 2.0-2PWTDK is a strong candidate but requires a datasheet review to confirm the PCB layout is identical.

Best replacement path

The most promising path is to evaluate 2.0-2PWTDK from SHOU HAN, which aligns on all critical electrical and mechanical parameters.

Main risk

Mechanical incompatibility is the primary risk. A different PCB footprint would require a board redesign.

Recommended alternatives

A 2.0mm pitch, 2-pin right-angle SMT header with matching electrical ratings. Footprint verification is recommended.

View details

Alternative comparison matrix

Feature / factor	S2B-PH-SM4-TB(LF)(SN)	2.0-2PWTDK	Compatibility / risk
Pitch	2.0 mm	2.0 mm	2.0 mm — Pitch is the most critical mechanical parameter.
Package	Surface Mount (SMT)	Surface Mount (Right Angle)	Surface Mount (Right Angle) — Mounting style matches target's side-entry.
Voltage	100 V	250 V	250 V — Higher voltage rating provides more margin.
Current	2 A	2 A	2 A — Current rating matches target.
Temperature	-25°C to +85°C	-25°C to +85°C	-25°C to +85°C — Operating temperature range is identical.

Application & sourcing insights

Questions & answers

SHOU HAN's 2.0-2PWTDK is a strong functional alternative, matching key specs like 2.0mm pitch, right-angle SMT mount, and 2A/250V rating. However, always verify the PCB footprint from the datasheet before substitution.