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Best Alternatives to A1251WV-4P

Package: Through HoleCJTInterconnectsPitch: 1.25 mmNumber of Positions: 4Current Rating: 1 AVoltage Rating: 125 VMounting Type: Through Hole

A1251WV-4P is a 4-pin 1.25mm vertical through-hole WTB header. Several candidates match ratings, but pinout and footprint need review.

AI replacement insight

Electrical risklow

Top TH candidates match 1A and 125V.

Package riskmedium

Pinout and footprint are missing.

Firmware risklow

Passive connector only.

Sourcing riskmedium

Lifecycle data is limited for some parts.

Can it be replaced directly?

No pin-compatible replacement is verified from the provided fields.

Best replacement path

Start with ZX-MX1.25-4PZZ or HC-1.25-4A, then verify footprint, pinout, and mating housing.

Main risk

Mechanical fit and mating compatibility are not proven.

Recommended alternatives

6
ZX-MX1.25-4PZZ package
Needs validationmedium risk

4P 1.25mm through-hole header with matching basic ratings.

View details

Alternative comparison matrix

Feature / factorA1251WV-4PZX-MX1.25-4PZZHC-1.25-4AWAFER-MX1.25-4PZZCompatibility / risk
PackageThrough Hole verticalThrough Hole straight--1.25mm Pitch Header — ES also says TH
Pinout4 positions4 positions--4 positions — footprint not shown
Voltage125 V125 V AC/DC--125 V AC/DC — rating aligns
Current1 A1 A--1 A — rating aligns
ApplicationPicoBlade style WTBPicoBlade style WTB--WTB header — same role
LifecycleActive--Active—

Application & sourcing insights

Questions & answers

ZX-MX1.25-4PZZ and HC-1.25-4A are the closest listed candidates, pending footprint and pinout checks.