Is there a pin-compatible replacement for PM254-2-04-Z-8.5?

No direct pin-compatible replacement has been verified. While several parts match the 2.54mm pitch and 2x4 pinout, critical specifications like voltage rating (1000V) and insulator height (8.5mm) do not match or are unconfirmed.

What risks should I check before replacing PM254-2-04-Z-8.5?

The primary risks are electrical and mechanical. Verify the substitute's voltage rating meets or exceeds the target's 1000V. Also, confirm the insulator height and other mechanical dimensions match your board layout to ensure proper mating and clearance.

PM254-2-04-Z-8.5 Alternatives, Datasheet & Cross Reference | HCTL

Find substitutes for the HCTL PM254-2-04-Z-8.5, an 8-pin dual-row female header. Key challenges include matching its 1000V rating and 8.5mm height.

AI replacement insight

Electrical riskhigh

Target's 1000V rating is a critical spec; most alternatives are rated for only 250V.

Package riskmedium

Insulator height (8.5mm) is specific and must be matched for mechanical fit.

Sourcing risklow

2.54mm headers are common, but high-voltage versions are less so.

Can it be replaced directly?

No direct, verified drop-in replacement is available due to the target's unusually high 1000V rating for this connector type. All candidates require careful engineering review.

Best replacement path

The most promising path is verifying the specs of HC-JN254-2-04-Z. If it doesn't meet the requirements, a new part search focusing on high-voltage 2.54mm headers is needed.

Main risk

The main risk is electrical overstress from using a substitute with a much lower voltage rating, potentially leading to component failure or safety hazards.

Recommended alternatives

Matches pin count, pitch, and current, but voltage and height require datasheet verification.

View details

Alternative comparison matrix

Feature / factor	PM254-2-04-Z-8.5	HC-JN254-2-04-Z	2541FV-2x4P	X6521FV-2x04-C85D32	Compatibility / risk
Package	2x4 8-Pin Through Hole	2x4 8-Pin Through Hole	2x4 8-Pin Through Hole	2x4 8-Pin Through Hole	2x4 8-Pin Through Hole — Pitch, positions, and rows match.; 2541FV-2x4P: Pitch, positions, and rows match.; X6521FV-2x04-C85D32: Pitch, positions, and rows match.
Voltage	1000V	Not specified	250V	250V	Not specified / 250V — Target voltage is unusually high.; 2541FV-2x4P: Significant downgrade, verify application.; X6521FV-2x04-C85D32: Significant downgrade, verify application.
Current	3.0A	3.0A	3.0A	3.0A	3.0A — matched; 2541FV-2x4P: matched; X6521FV-2x04-C85D32: matched
Temperature	-40°C to +105°C	-40°C to +105°C	-	-	-40°C to +105°C — matched
Dimensions	8.5mm height	Not specified	-	-	Not specified — Insulator height is a key mechanical parameter.

Application & sourcing insights

Questions & answers

HC-JN254-2-04-Z from the same manufacturer is a strong form-fit candidate, but its voltage rating and height must be verified against the target's 1000V and 8.5mm specs. Other parts are often limited to 250V.