
A functional alternative from JST, but its through-hole mounting differs from the target's SMT package.
Finding a substitute for the ZX-XH2.54-3PWT, a 3-pin 2.5mm right-angle SMT header, requires careful attention to the mounting type. While functional through-hole alternatives exist, a direct SMT replacement is needed to avoid PCB redesign.
SMT vs. THT requires a different PCB layout and assembly process.
Most candidates match the key 3A/250V electrical ratings.
Direct replacement for ZX-XH2.54-3PWT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Search for 3-pin, 2.5mm pitch, right-angle SMT headers from major brands, verifying the PCB footprint from datasheets.
The primary risk is mechanical incompatibility. The target is a Surface Mount (SMT) part, while all viable alternatives are Through-Hole (THT).

A functional alternative from JST, but its through-hole mounting differs from the target's SMT package.
| Feature / factor | ZX-XH2.54-3PWT | S3B-XH-A(LF)(SN) | ZX-XH2.54-3PLT | XH-3AW | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Surface Mount, Right-Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle — Target is SMT, requires PCB redesign.; ZX-XH2.54-3PLT: Target is SMT, requires PCB redesign.; XH-3AW: Target is SMT, requires PCB redesign. |
| Current | 3A | 3A | 3A | 2A | 3A / 2A — matched; ZX-XH2.54-3PLT: matched; XH-3AW: Potential downgrade from 3A. Verify datasheet. |
| Voltage | 250V | 250V | 250V | 250V | 250V — matched; ZX-XH2.54-3PLT: matched; XH-3AW: matched |
| Manufacturer | Megastar | JST | - | - | JST — Well-known brand. |
| Pitch | 2.5mm | - | 2.5mm | 2.5mm | 2.5mm — matched; XH-3AW: matched |
Verified drop-in options for ZX-XH2.54-3PWT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.