Is there a pin-compatible replacement for XD-1.25-5PLT?

A1251WV-S-5P is a potential pin-compatible replacement, but requires a datasheet comparison of the mechanical drawings and PCB land pattern to confirm it is a drop-in fit.

What risks should I check before replacing XD-1.25-5PLT?

Key risks include mechanical mismatches like footprint or orientation (right-angle vs. vertical), and electrical downgrades such as lower voltage ratings. Always verify datasheets before substitution.

XD-1.25-5PLT Alternatives, Datasheet & Cross Reference | XUNDA

XD-1.25-5PLT is a 5-pin, 1.25mm pitch vertical SMT header. Alternatives exist, but require careful review of mechanical dimensions and electrical ratings to ensure compatibility.

AI replacement insight

Package riskhigh

Footprint and exact dimensions must be verified. Many similar parts have different orientations.

Electrical riskmedium

Some alternatives have lower voltage ratings, which must be checked against application needs.

Can it be replaced directly?

No direct drop-in replacement has been fully verified. A1251WV-S-5P is the closest candidate but requires a mechanical footprint check from the datasheet.

Best replacement path

The most promising path is A1251WV-S-5P, which matches key parameters. Other options have significant differences in orientation or voltage.

Main risk

The primary risk is mechanical incompatibility. Many similar parts have a different mounting orientation (right-angle) or type (through-hole).

Recommended alternatives

Strong functional match with same pitch, orientation, and ratings; requires footprint verification.

View details

Alternative comparison matrix

Feature / factor	XD-1.25-5PLT	A1251WV-S-5P	HCZZ0494-5	Compatibility / risk
Pin Count	5	5	5	5 — Pin count matches.; HCZZ0494-5: Pin count matches.
Package	1.25mm SMT, Vertical	1.25mm SMT, Vertical	1.25mm SMT, Vertical	1.25mm SMT, Vertical — Form factor and orientation match. Footprint requires verification.; HCZZ0494-5: Form factor and orientation match. Footprint requires verification.
Voltage	125V	125V	50V AC	125V / 50V AC — Voltage rating matches.; HCZZ0494-5: Candidate voltage rating is significantly lower.
Current	1A	1A	1.0A	1A / 1.0A — Current rating matches.; HCZZ0494-5: Current rating matches.

Application & sourcing insights

Questions & answers

A1251WV-S-5P from CJT is a strong functional match, sharing the same pin count, pitch, orientation, and key electrical ratings. However, its PCB footprint must be verified from the datasheet.