Needs validationhigh risk
JST original XH series part. Functionally similar but requires PCB redesign due to different mounting (TH vs SMT).
Best Alternatives to ZX-XH2.54-8PWT
ZX-XH2.54-8PWT is an 8-pin, 2.5mm pitch, right-angle SMT header. While no direct SMT replacements were found, several Through-Hole functional alternatives exist, such as the JST S8B-XH-A(LF)(SN), which require a PCB redesign for use.
AI replacement insight
Package riskhigh
Critical mismatch between Surface Mount (SMT) target and Through-Hole (TH) candidates requires a board redesign.
Electrical risklow
Most candidates match key electrical ratings like voltage, current, and pitch.
Can it be replaced directly?
No, a direct, drop-in SMT replacement for ZX-XH2.54-8PWT was not found among the candidates. All suggested alternatives are Through-Hole and require a different PCB layout.
Best replacement path
If a PCB redesign is possible, the JST S8B-XH-A(LF)(SN) is a strong functional alternative from the original XH series designer. Otherwise, a search for a direct SMT 8-pin 2.5mm right-angle header is required.
Main risk
The primary risk is the physical mounting difference. Using any of the proposed alternatives requires a complete PCB layout change from a Surface Mount footprint to a Through-Hole footprint.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | ZX-XH2.54-8PWT | S8B-XH-A(LF)(SN) | HC-XHB-8AW | XD-XH-8AW-G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 8-pin SMT Header | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle — Target is Surface Mount (SMT), candidate is Through-Hole (TH). Requires PCB redesign.; HC-XHB-8AW: Target is Surface Mount (SMT), candidate is Through-Hole (TH). Requires PCB redesign.; XD-XH-8AW-G: Target is Surface Mount (SMT), candidate is Through-Hole (TH). Requires PCB redesign.; ZX-XH2.54-8PLT: Target is Surface Mount (SMT), candidate is Through-Hole (TH). Requires PCB redesign. |
| Manufacturer | Megastar | JST | - | - | JST — Original manufacturer of XH series. |
| Pin Count | 8 | 8 | 8 | 8 | 8 — matched; HC-XHB-8AW: matched; XD-XH-8AW-G: matched; ZX-XH2.54-8PLT: matched |
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm | 2.5mm — matched; HC-XHB-8AW: matched; XD-XH-8AW-G: matched; ZX-XH2.54-8PLT: matched |
| Current | 3A | - | - | 3A | 3A — matched; ZX-XH2.54-8PLT: matched |
| Voltage | 250V | - | - | - | 250V — matched |
Application & sourcing insights
Questions & answers
The best functional alternative is S8B-XH-A(LF)(SN) from JST, the original XH series manufacturer. However, it is a Through-Hole part and requires a PCB redesign, as the original ZX-XH2.54-8PWT is Surface Mount (SMT).