Is there a pin-compatible replacement for XH-4A-R?

Possibly. Parts like ZX-XH2.54-4PZZ-Y and XH-4PS are strong candidates for being pin-compatible as they match the 2.5mm pitch, 4-pin count, and straight through-hole configuration. However, you must verify the mechanical drawing in the datasheet to confirm an exact footprint match.

What risks should I check before replacing XH-4A-R?

Before replacing XH-4A-R, you should check three main things: 1) Mechanical Fit: Compare the datasheet drawings to ensure the substitute's footprint and housing dimensions fit your PCB. 2) Electrical Ratings: Confirm the voltage and current ratings are equal to or greater than the original. 3) Mating Connector: Ensure the substitute will mate correctly with your existing cable-side connector.

XH-4A-R Alternatives, Datasheet & Cross Reference | HCTL

XH-4A-R is a standard 4-pin, 2.5mm pitch straight header connector from HCTL. This page provides a reviewed list of potential functional alternatives from other manufacturers, highlighting key parameters for verification.

AI replacement insight

Electrical risklow

Several candidates match the 3A/250V rating.

Package riskmedium

Requires verification of mechanical drawings for footprint and housing dimensions.

Sourcing risklow

This is a common connector type with multiple manufacturers.

Can it be replaced directly?

There are several strong candidates that are likely direct replacements, but pin-to-pin compatibility must be confirmed by checking the datasheet's mechanical drawing against your PCB layout.

Best replacement path

Use a cross-vendor family part like Megastar ZX-XH2.54-4PZZ-Y or DEALON XH-4PS after verifying the mechanical drawing.

Main risk

The primary risk is mechanical incompatibility. While pitch and pin count match, housing dimensions or pin lengths can vary slightly between manufacturers.

Recommended alternatives

Strong functional alternative with matching pitch, pin count, and electrical ratings. Verify mechanical drawing.

View details

Alternative comparison matrix

Feature / factor	XH-4A-R	XH-4PS	ZX-XH2.54-4PZZ-Y	Compatibility / risk
Package	Through Hole	Through Hole	Through Hole	Through Hole — Mounting type is straight/vertical, matching target.; ZX-XH2.54-4PZZ-Y: Mounting type is straight, matching target.
Pitch	2.5mm	2.5mm	2.5mm	2.5mm — Pitch matches, ensuring mating compatibility.; ZX-XH2.54-4PZZ-Y: Pitch matches, ensuring mating compatibility.
Pinout	4	4	4	4 — Pin count matches. Pinout requires datasheet verification.; ZX-XH2.54-4PZZ-Y: Pin count matches. Pinout requires datasheet verification.
Voltage	250V	250V	250V	250V — Voltage rating matches.; ZX-XH2.54-4PZZ-Y: Voltage rating matches.
Current	3A	3A	3A	3A — Current rating matches.; ZX-XH2.54-4PZZ-Y: Current rating matches.

Application & sourcing insights

Questions & answers

The best alternatives for XH-4A-R are ZX-XH2.54-4PZZ-Y by Megastar and XH-4PS by DEALON. Both match the key electrical and physical specifications, but require datasheet review for final confirmation.