Is there a pin-compatible replacement for HDGC1251WV-4P?

No pin-compatible replacement has been verified. While candidates with the same pin count and pitch exist, they differ in mounting style (right-angle or surface-mount) and require PCB layout changes.

What risks should I check before replacing HDGC1251WV-4P?

The primary risk is mechanical incompatibility. You must verify the mounting style (vertical vs. right-angle) and technology (through-hole vs. SMD) to ensure it fits your PCB layout and enclosure.

HDGC1251WV-4P Alternatives, Datasheet & Cross Reference | Shenzhen Huade Co-create Technology Co., Ltd.

HDGC1251WV-4P is a standard 4-pin, 1.25mm pitch vertical through-hole header. While no direct drop-in replacements have been confirmed, several functional alternatives are available but require careful review of mechanical mounting differences.

AI replacement insight

Package riskhigh

Candidates have different mounting styles (right-angle or SMD) requiring PCB redesign.

Electrical risklow

Key electrical parameters like voltage, current, and pitch match.

Can it be replaced directly?

No direct, drop-in replacement for HDGC1251WV-4P has been identified. All potential alternatives require mechanical verification.

Best replacement path

HDGC1251WR-4P from the same manufacturer is the closest functional match, but it is a right-angle version and not a direct mechanical fit.

Main risk

Mechanical mismatch due to different mounting orientation (right-angle) or technology (SMD vs. Through-Hole).

Recommended alternatives

A functional alternative from the same series with a right-angle mounting style instead of vertical.

View details

Alternative comparison matrix

Feature / factor	HDGC1251WV-4P	HDGC1251WR-4P	9821WRS-04P	Compatibility / risk
Package	1.25mm Pitch Header (Vertical)	4-Pin Right Angle Header	SMD	4-Pin Right Angle Header / SMD — Candidate is right-angle, target is vertical.; 9821WRS-04P: Candidate is Surface Mount, target is Through-Hole.
Pin Count	4	4	4	4 — matched; 9821WRS-04P: matched
Pitch	1.25 mm	1.25mm	1.25mm	1.25mm — matched; 9821WRS-04P: matched
Voltage	125 V AC/DC	125V	125V AC/DC	125V / 125V AC/DC — matched; 9821WRS-04P: matched
Current	1 A	1A	1A	1A — matched; 9821WRS-04P: matched

Application & sourcing insights

Questions & answers

The best functional alternative is HDGC1251WR-4P, which is from the same manufacturer and series. However, it has a right-angle mounting style, unlike the vertical target, and is not a drop-in replacement.