Is there a pin-compatible replacement for A1501WV-4P?

Several manufacturers make JST ZH-compatible headers like the B4B-ZR series. While the pin spacing and footprint may match, key electricals like voltage rating (100V) and pin length must be verified from datasheets to ensure true pin-to-pin compatibility.

What risks should I check before replacing A1501WV-4P?

The main risks are electrical and mechanical. Check the voltage rating (target is 100V, many alternatives are 50V), temperature range, and physical dimensions, especially the solder tail length and shrouded housing dimensions, to ensure proper PCB fit and mating.

A1501WV-4P Alternatives, Datasheet & Cross Reference | CJT

A1501WV-4P is a common 4-pin, 1.5mm pitch vertical through-hole header from CJT. When considering alternatives, it's crucial to match the 100V rating, vertical orientation, and PCB footprint.

AI replacement insight

Electrical riskhigh

Many alternatives are 50V vs target's 100V.

Package riskmedium

Tail length and housing dimensions must be verified for PCB and mating compatibility.

Sourcing risklow

This is a common connector style with multiple vendors.

Can it be replaced directly?

No direct drop-in replacement is confirmed without datasheet verification. JST's B4B-ZR series are close but have a lower voltage rating.

Best replacement path

Cross-reference to other JST ZH series compatible headers, carefully verifying voltage rating and tail length.

Main risk

Electrical downgrade risk due to lower voltage ratings on common alternatives.

Recommended alternatives

A form-fit similar 4-pin header from JST, but with a lower 50V rating. Requires electrical and mechanical verification.

View details

Alternative comparison matrix

Feature / factor	A1501WV-4P	B4B-ZR-3.4(LF)(SN)	B4B-ZR(LF)(SN)	Compatibility / risk
Package	Through Hole	Through Hole	Through Hole	Through Hole — Mounting type matches.; B4B-ZR(LF)(SN): Mounting type matches.
Voltage	100 V	50 V	50 V	50 V — Candidate voltage rating is lower.; B4B-ZR(LF)(SN): Candidate voltage rating is lower.
Current	1 A	1.0 A	1.0 A	1.0 A — Current rating matches.; B4B-ZR(LF)(SN): Current rating matches.
Temperature	-40°C to +105°C	Not specified	-25°C to +85°C	Not specified / -25°C to +85°C — Operating temperature range is missing.; B4B-ZR(LF)(SN): Candidate has a narrower operating temperature range.
Pinout	Not specified	3.4mm tail	-	3.4mm tail — Solder tail length differs, requires PCB layout check.

Application & sourcing insights

Questions & answers

JST's B4B-ZR series are functionally similar but often have a lower 50V rating. Verify your circuit's voltage requirements before substituting. For a direct match, check for other A1501/ZH series compatible parts with a 100V rating.