Is there a pin-compatible replacement for B4B-PH-K-S-GW?

No replacement has been verified as 100% pin-compatible without engineering review. Candidates like WAFER-PH2.0-4PJK are listed as 'form-fit-function' alternates, meaning they match key specs but require datasheet comparison to confirm the PCB layout and mating dimensions.

What risks should I check before replacing B4B-PH-K-S-GW?

Before replacing B4B-PH-K-S-GW, you must verify the substitute's mechanical drawing against your PCB layout and the mating connector. Check the housing dimensions, pin length, and footprint to ensure physical compatibility. Also confirm the substitute's temperature range meets your application's needs.

B4B-PH-K-S-GW Alternatives, Datasheet & Cross Reference | JST

Find and compare potential replacements for the JST B4B-PH-K-S-GW, a 4-pin 2.0mm pitch PH series header. This page lists functional alternatives that match key electrical specifications but require mechanical verification.

AI replacement insight

Package riskhigh

Mechanical dimensions and PCB footprint must be verified from datasheets to ensure form, fit, and mating compatibility.

Electrical risklow

Several candidates match or exceed the target's voltage and current ratings.

Can it be replaced directly?

There are no verified direct drop-in replacements for B4B-PH-K-S-GW. However, several parts like WAFER-PH2.0-4PJK are strong functional alternates that require engineering review of their datasheets for mechanical compatibility.

Best replacement path

WAFER-PH2.0-4PJK and ZX-PH2.0-LT4P are strong candidates from the same PH connector family, offering similar or better voltage ratings. Verification of mechanical drawings is required.

Main risk

The primary risk is mechanical incompatibility. While candidates may share the 'PH series' name, minor differences in housing dimensions or tolerances can prevent proper mating or PCB fit.

Recommended alternatives

A 4-pin, 2.0mm pitch vertical header in the same PH series with identical voltage and current ratings.

View details

Alternative comparison matrix

Feature / factor	B4B-PH-K-S-GW	WAFER-PH2.0-4PJK	WAFER-PH200Z-4A	ZX-PH2.0-LT4P	Compatibility / risk
Package	Through Hole, Top-Entry	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical — Mounting orientation matches.; WAFER-PH200Z-4A: Mounting orientation matches.; ZX-PH2.0-LT4P: Mounting orientation matches.
Family	PH Series	PH Series	PH Series	PH Series	PH Series — Candidate is part of the same connector family.; WAFER-PH200Z-4A: Candidate is part of the same connector family.; ZX-PH2.0-LT4P: Candidate is part of the same connector family.
Voltage	100V	100V	250V	250V	100V / 250V — Voltage rating matches the target exactly.; WAFER-PH200Z-4A: Higher voltage rating provides more margin.; ZX-PH2.0-LT4P: Higher voltage rating provides more margin.
Current	2A	2.0A	2.0A	2.0A	2.0A — Current rating matches.; WAFER-PH200Z-4A: Current rating matches.; ZX-PH2.0-LT4P: Current rating matches.

Application & sourcing insights

Questions & answers

The best alternatives for B4B-PH-K-S-GW are other headers in the 2.0mm pitch PH series, such as WAFER-PH2.0-4PJK or ZX-PH2.0-LT4P. They offer matching or improved electrical ratings but require mechanical verification.