Is there a pin-compatible replacement for WAFER-PH2.0-4PLB?

The original JST B4B-PH-K-S(LF)(SN) is from the same PH series and should be pin-compatible, but it has a lower voltage rating of 100V versus the target's 250V. This is a critical difference that must be evaluated for your application.

What risks should I check before replacing WAFER-PH2.0-4PLB?

When replacing this connector, first verify the substitute is mechanically compatible with your existing JST PH series mating parts. Second, ensure the voltage and current ratings (250V, 2A) are met or exceeded. Some alternatives may have lower ratings.

WAFER-PH2.0-4PLB Alternatives, Datasheet & Cross Reference | XUNPU

Find and compare alternatives for the XUNPU WAFER-PH2.0-4PLB, a 4-pin 2.0mm pitch vertical header. Key considerations for replacement include mechanical compatibility with JST PH series housings and matching the 250V/2A electrical ratings.

AI replacement insight

Package riskhigh

Mating compatibility with existing PH-series housings is the primary concern and requires datasheet verification.

Electrical riskmedium

Some alternatives have lower voltage ratings, which could lead to component failure if not validated.

Can it be replaced directly?

No direct drop-in replacement has been confirmed. The closest options have either a lower voltage rating (JST B4B-PH-K-S) or require mechanical drawing verification (BXCONN WF-1A200A4P).

Best replacement path

Cross-reference to other PH-series 2.0mm 4-pin vertical headers with at least 250V/2A ratings, like BXCONN WF-1A200A4P, after verifying mechanical drawings.

Main risk

Mechanical incompatibility. Many 2.0mm pitch connectors exist, but shroud dimensions for series like JST PH, HY, and PA are not interchangeable.

Recommended alternatives

Pin-compatible original JST part, but has a significantly lower voltage rating (100V vs 250V).

View details

Alternative comparison matrix

Feature / factor	WAFER-PH2.0-4PLB	B4B-PH-K-S(LF)(SN)	WF-1A200A4P	Compatibility / risk
Pinout	PH Series compatible	JST PH Series	Unknown, likely PH series clone	JST PH Series / Unknown, likely PH series clone — Original JST part, ensuring mechanical compatibility.; WF-1A200A4P: Mechanical drawings must be compared to ensure mating compatibility.
Voltage	250V	100V	250V AC	100V / 250V AC — Voltage rating is significantly lower.; WF-1A200A4P: Voltage rating matches.
Current	2A	2A	2.0A	2A / 2.0A — Current rating matches.; WF-1A200A4P: Current rating matches.
Package	Through Hole, Vertical	Through Hole, Straight	Through Hole, Straight	Through Hole, Straight — Mounting type and orientation match.; WF-1A200A4P: Mounting type and orientation match.
Temperature	-25°C to +85°C	-	-25°C to +85°C	-25°C to +85°C — Operating temperature range matches.

Application & sourcing insights

Questions & answers

The BXCONN WF-1A200A4P is a strong functional alternative with matching electrical ratings, but requires mechanical verification. The original JST B4B-PH-K-S(LF)(SN) is pin-compatible but has a lower voltage rating (100V).