Is there a pin-compatible replacement for A1501WR-S-4P?

No confirmed pin-compatible replacement is available. While parts like S4B-ZR-SM4A-TF(LF)(SN) are form-fit compatible (same pitch, orientation, and mount), their footprints must be verified via datasheet comparison. Critically, all such alternatives have a lower voltage rating.

What risks should I check before replacing A1501WR-S-4P?

The primary risk is electrical overstress. All similar alternatives are rated for 50V, while the original is 100V. Using a 50V part in a 100V application can lead to component failure. Always verify the PCB footprint and ensure the lower voltage rating is acceptable for your design.

A1501WR-S-4P Alternatives, Datasheet & Cross Reference | CJT

Finding a substitute for the CJT A1501WR-S-4P requires careful attention to its 100V rating. While many form-fit compatible 1.5mm pitch headers exist, most are only rated for 50V, posing a significant electrical risk if not properly vetted for the application.

AI replacement insight

Electrical riskhigh

All similar parts found are rated for 50V, half of the target's 100V rating.

Package risklow

Candidates are based on the same JST ZH series standard, but footprint verification is still advised.

Can it be replaced directly?

No direct, 1:1 replacement with a 100V rating was found. All form-fit compatible alternatives have a lower voltage rating of 50V.

Best replacement path

Use a form-fit compatible alternative like S4B-ZR-SM4A-TF(LF)(SN), but only if the application's maximum voltage is below 50V.

Main risk

Electrical overstress due to the lower voltage rating (50V) of all viable alternatives compared to the target's 100V rating.

Recommended alternatives

A form-fit alternate from HCTL, but with a lower voltage rating (50V). Footprint verification is required.

View details

Alternative comparison matrix

Feature / factor	A1501WR-S-4P	HC-ZH-4PWT	S4B-ZR-SM4A-TF(LF)(SN)	Compatibility / risk
Package	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle	SMT, Right Angle — Form factor matches. Footprint requires verification.; S4B-ZR-SM4A-TF(LF)(SN): Form factor matches. Footprint requires verification.
Pitch	1.50 mm	1.5mm	1.5mm	1.5mm — matched; S4B-ZR-SM4A-TF(LF)(SN): matched
Voltage	100V	50V	50V	50V — Candidate voltage rating is lower.; S4B-ZR-SM4A-TF(LF)(SN): Candidate voltage rating is lower.
Current	1A	1A	1.0A	1A / 1.0A — matched; S4B-ZR-SM4A-TF(LF)(SN): matched
Temperature	Not specified	-40°C to +105°C	-25°C to +85°C	-40°C to +105°C / -25°C to +85°C — Wider operating range than typical.; S4B-ZR-SM4A-TF(LF)(SN): Target operating range not specified.

Application & sourcing insights

Questions & answers

The best alternatives are S4B-ZR-SM4A-TF(LF)(SN) by JST or HC-ZH-4PWT by HCTL. However, both have a lower voltage rating of 50V compared to the original's 100V. This substitution is only safe if your circuit operates well below 50V.