Is there a pin-compatible replacement for PM254-1-04-Z-8.5?

Yes, several pin-compatible headers with a 1x4 pinout and 2.54mm pitch exist. However, none of the common alternatives match the original's high 1000V withstand voltage, which is a critical electrical parameter.

What risks should I check before replacing PM254-1-04-Z-8.5?

The main risk is electrical overstress. Most substitutes have a much lower voltage rating (250V-500V) than the original's 1000V. You should also check for differences in contact plating (e.g., Tin vs. Gold) and operating temperature range, which can affect performance and reliability.

PM254-1-04-Z-8.5 Alternatives, Datasheet & Cross Reference | HCTL

Finding a substitute for the HCTL PM254-1-04-Z-8.5, a 4-pin 2.54mm header, requires careful attention to its high 1000V voltage rating. While many headers match its form factor, most have lower electrical ratings that must be verified for your application.

AI replacement insight

Electrical riskhigh

Most substitutes have 250V-500V ratings, far below the target's 1000V.

Package risklow

The 1x4 2.54mm through-hole package is a common industry standard.

Can it be replaced directly?

No direct drop-in replacement has been identified; all viable candidates require review due to lower voltage ratings.

Best replacement path

Find a substitute matching the 3A current and gold plating, but accept a lower voltage rating (e.g., 500V) after verifying it is safe for the application.

Main risk

The primary risk is electrical overstress due to the significantly lower voltage rating of most available alternatives.

Recommended alternatives

A form-fit match with the same current and plating, but a significantly lower voltage rating.

View details

Alternative comparison matrix

Feature / factor	PM254-1-04-Z-8.5	HB-PH3-25414PB2GOP	Z-21104110021001	Compatibility / risk
Package	Through Hole, 1x4P	Through Hole, 1x4P	-	Through Hole, 1x4P — Matches form factor.
Pinout	2.54mm	2.54mm	-	2.54mm — Matches pitch.
Voltage	1000V AC/DC	500V AC	-	250V AC/DC — Significantly lower voltage rating.
Current	3.0A	3A	-	3A — Matches current rating.
Application	Gold	Gold	-	Gold — Matches contact plating.
Temperature	-40°C to +105°C	-	-25°C to +105°C	-25°C to +105°C — Slightly narrower low-end temp range.

Application & sourcing insights

Questions & answers

The best alternative is likely HB-PH3-25414PB2GOP by HANBO, which matches the form, current, and plating. However, you must verify if its lower 500V voltage rating (vs. the original's 1000V) is acceptable for your design.