
Megastar
4P 1.25mm through-hole header with matching basic ratings.
A1251WV-4P is a 4-pin 1.25mm vertical through-hole WTB header. Several candidates match ratings, but pinout and footprint need review.
Top TH candidates match 1A and 125V.
Pinout and footprint are missing.
Passive connector only.
Lifecycle data is limited for some parts.
No pin-compatible replacement is verified from the provided fields.
Start with ZX-MX1.25-4PZZ or HC-1.25-4A, then verify footprint, pinout, and mating housing.
Mechanical fit and mating compatibility are not proven.

Megastar
4P 1.25mm through-hole header with matching basic ratings.
| Feature / factor | A1251WV-4P | ZX-MX1.25-4PZZ | HC-1.25-4A | WAFER-MX1.25-4PZZ | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole vertical | Through Hole straight | - | - | 1.25mm Pitch Header — ES also says TH |
| Pinout | 4 positions | 4 positions | - | - | 4 positions — footprint not shown |
| Voltage | 125 V | 125 V AC/DC | - | - | 125 V AC/DC — rating aligns |
| Current | 1 A | 1 A | - | - | 1 A — rating aligns |
| Application | PicoBlade style WTB | PicoBlade style WTB | - | - | WTB header — same role |
| Lifecycle | Active | - | - | Active | — |
ZX-MX1.25-4PZZ and HC-1.25-4A are the closest listed candidates, pending footprint and pinout checks.