
Megastar
A 2-pin, 1.25mm pitch right-angle SMT header with matching electrical ratings; verify footprint before use.
XUNDA's XD-1.25-2PWT is a 2-pin, 1.25mm pitch right-angle SMT header. While no pre-verified drop-in replacements are available, several strong functional alternatives exist that require careful footprint and electrical verification before substitution.
PCB footprint and housing dimensions must be verified from datasheets to ensure mechanical fit.
Several candidates match the 1A/125V rating, but some have lower ratings that must be avoided.
Multiple manufacturers produce similar 1.25mm pitch headers, suggesting good supply chain depth.
No confirmed direct drop-in replacement exists. ZX-GH1.25-WT2 is a strong candidate for a form, fit, and function replacement, pending a mechanical layout review.
ZX-GH1.25-WT2 by Megastar is the most promising alternative, matching all key electrical and mechanical parameters. However, its PCB footprint must be verified against the target's datasheet.
The primary risk is mechanical incompatibility. Even with matching pitch and orientation, slight differences in housing dimensions or SMT pad layout can prevent a successful replacement.

Megastar
A 2-pin, 1.25mm pitch right-angle SMT header with matching electrical ratings; verify footprint before use.
| Feature / factor | XD-1.25-2PWT | ZX-GH1.25-WT2 | 1.25T-2P卧贴 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Pitch | 1.25mm | 1.25mm | - | 1.25mm — Pitch matches. | |
| Pin Count | 2 | 2 | - | 2 — Pin count matches. | |
| Package | Surface Mount, Right Angle | SMT, Right Angle | SMT, Right Angle | SMT, Right Angle — Mounting and orientation match.; 1.25T-2P卧贴: Mounting and orientation match. | |
| Current | 1A | 1.0A | 1.0A | 1.0A — Current rating matches.; 1.25T-2P卧贴: Current rating matches. | |
| Voltage | 125V | 125V | 50V | 125V / 50V — Voltage rating matches.; 1.25T-2P卧贴: Lower voltage rating. |
The best alternative identified is Megastar's ZX-GH1.25-WT2. It matches the target's pitch, pin count, mounting style, and electrical ratings. However, you must verify the PCB footprint from the datasheet before ordering.