Is there a pin-compatible replacement for HC-1.25-4AW?

No, a direct pin-compatible (Through-Hole, Right-Angle) replacement was not identified. All reviewed options with the correct orientation are SMT and not mechanically compatible.

What risks should I check before replacing HC-1.25-4AW?

The main risk is the different mounting type. The target is Through-Hole, while alternatives are Surface-Mount (SMT), which requires a new PCB layout. Also verify the housing material and temperature range.

HC-1.25-4AW Alternatives, Datasheet & Cross Reference | HCTL

Find functional alternatives for the HC-1.25-4AW, a 4-pin 1.25mm pitch right-angle header. While no direct drop-in replacements are available, several SMT options offer similar electrical performance but require PCB redesign.

AI replacement insight

Package riskhigh

Requires PCB redesign from THT to SMT.

Electrical risklow

Voltage and current ratings are identical.

Can it be replaced directly?

No, there are no direct pin-for-pin replacements for HC-1.25-4AW in this list. All functional alternatives have a different mounting style (SMT vs. Through-Hole).

Best replacement path

Transitioning to a surface-mount (SMT) equivalent like A1251WR-S-4P-LCP, which requires a PCB redesign.

Main risk

The primary risk is mechanical incompatibility; all viable alternatives are Surface-Mount (SMT) and require a new PCB layout, as the target is Through-Hole (THT).

Recommended alternatives

Functional alternate with same pitch and electrical ratings but requires a PCB layout change from THT to SMT.

View details

Alternative comparison matrix

Feature / factor	HC-1.25-4AW	A1251WR-S-4P-LCP	WAFER-MX1.25-4PWB	ZX-MX1.25-4PWT	Compatibility / risk
Package	Through Hole, Right Angle	Surface Mount (SMT)	-	-	Surface Mount (SMT) — Requires PCB redesign.
Current	1A	1A	-	-	1A — matched
Voltage	125V	125V	-	-	125V — matched
Material	Nylon 66 / Brass	LCP / Phos Bronze	-	-	LCP / Phos Bronze — Different materials, check temp range.

Application & sourcing insights

Questions & answers

The best alternatives are functional matches like A1251WR-S-4P-LCP, which have the same pitch, pin count, and electrical ratings but use a Surface-Mount (SMT) package, requiring a PCB layout change.