Is there a pin-compatible replacement for HC-PA-4A?

Several connectors share the same 4-pin, 2.0mm pitch, straight through-hole layout, but none are confirmed pin-to-pin without mechanical drawing comparison. All have a lower current rating.

What risks should I check before replacing HC-PA-4A?

The main risk is the lower current rating (2A vs 3A), which could cause overheating. Also, verify the substitute's mechanical dimensions (housing size, pin length) for PCB and mating compatibility.

HC-PA-4A Alternatives, Datasheet & Cross Reference | HCTL

Finding a substitute for the HC-PA-4A 4-pin header involves checking key parameters. While several options match the 2.0mm pitch and through-hole mounting, most have a lower current rating, requiring careful review.

AI replacement insight

Electrical riskhigh

All candidates have a lower current rating (2A vs 3A), which can lead to overheating and failure.

Package riskmedium

While pitch and pin count match, housing dimensions and pin lengths must be verified for PCB and mating compatibility.

Sourcing risklow

Multiple manufacturers offer connectors with similar form-factors, providing sourcing flexibility.

Can it be replaced directly?

No direct drop-in replacement was found. All reviewed alternatives have a lower current rating (2.0A) than the target's 3.0A, which poses a risk.

Best replacement path

Use a candidate with a matching form-factor but verify the application's current draw is safely below the substitute's 2.0A rating.

Main risk

The primary risk is electrical overstress due to the lower current rating of all available alternatives.

Recommended alternatives

A 4-pin, 2.0mm pitch header with a lower current rating; requires engineering review before use.

View details

Alternative comparison matrix

Feature / factor	HC-PA-4A	WAFER-PH2.0-4PJK	WF-1A200A4P-Y	ZX-PH2.0-LT4P	Compatibility / risk
Package	Through Hole	Through Hole	Through Hole	Through Hole, Vertical	Through Hole / Through Hole, Vertical — Mounting type matches.; WF-1A200A4P-Y: Mounting type matches.; ZX-PH2.0-LT4P: Mounting orientation matches.
Current	3A	2.0A	2.0A	2.0A	2.0A — Significant downgrade from target's rating.; WF-1A200A4P-Y: Significant downgrade from target's rating.; ZX-PH2.0-LT4P: Significant downgrade from target's rating.
Voltage	100V	100V	250V	250V	100V / 250V — Voltage rating matches target.; WF-1A200A4P-Y: Higher voltage rating provides more margin.; ZX-PH2.0-LT4P: Higher voltage rating provides more margin.
Pitch	2.00mm	2.0mm	-	2.0mm	2.0mm — Pitch matches.; ZX-PH2.0-LT4P: Pitch matches.
Temperature	-25°C to +85°C	-	-25°C to +85°C	-	-25°C to +85°C — Operating temperature range matches.

Application & sourcing insights

Questions & answers

No direct replacement is available. Candidates like ZX-PH2.0-LT4P or WF-1A200A4P-Y match the form-factor but have a lower current rating (2A vs 3A), requiring application review.