Is there a pin-compatible replacement for ZX-ZH1.5-3PLT?

JST B3B-ZR(LF)(SN) and HCTL HC-ZH1.5-3A are physically compatible (vertical, 3-pin, 1.5mm pitch) but are not direct drop-in replacements due to significantly lower voltage and temperature ratings.

What risks should I check before replacing ZX-ZH1.5-3PLT?

The primary risks are electrical. Verify the candidate's voltage rating (many are 50V vs. the target's 250V) and operating temperature range to ensure they meet your application's requirements.

ZX-ZH1.5-3PLT Alternatives, Datasheet & Cross Reference | Megastar

Reviewing alternatives for the Megastar ZX-ZH1.5-3PLT, a 3-pin, 1.5mm pitch vertical header. Key challenges include matching the 250V rating and wide temperature range, as many similar connectors are rated lower.

AI replacement insight

Electrical riskhigh

All candidates have much lower voltage/temperature ratings.

Package risklow

Several candidates match the vertical through-hole form factor.

Can it be replaced directly?

No direct drop-in replacement was found. All physically similar candidates have significantly lower voltage (50V vs 250V) and temperature ratings.

Best replacement path

JST's B3B-ZR(LF)(SN) is a physically compatible alternative if the application's voltage and temperature requirements are flexible.

Main risk

Electrical overstress due to lower voltage and temperature ratings in all potential alternatives.

Recommended alternatives

Physically compatible vertical header, but with significantly lower voltage and temperature ratings.

View details

Alternative comparison matrix

Feature / factor	ZX-ZH1.5-3PLT	B3B-ZR(LF)(SN)	HC-ZH1.5-3A	Compatibility / risk
Package	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical — Matches target's form factor.; HC-ZH1.5-3A: Summary indicates 'straight male header', implying vertical.
Pitch	1.5 mm	1.5 mm	-	1.5 mm — matched
Voltage	250 V	50 V	50 V	50 V — Significant downgrade from target.; HC-ZH1.5-3A: Significant downgrade from target.
Temperature	-40°C to +105°C	-25°C to +85°C	Not specified	-25°C to +85°C / Not specified — Narrower range than target.; HC-ZH1.5-3A: Temperature range is missing.
Current	1 A	1.0 A	-	1.0 A — matched

Application & sourcing insights

Questions & answers

JST's B3B-ZR(LF)(SN) is a strong form-fit candidate, but it has a lower voltage rating (50V vs 250V) and a narrower temperature range. It requires careful electrical review before use.