Needs validationlow risk
JST's original XH series part offers a high-confidence, pin-compatible alternative.
Best Alternatives to ZX-XH2.54-2PZZ-R
The Megastar ZX-XH2.54-2PZZ-R is a common 2-pin, 2.5mm pitch straight header. Several pin-compatible alternatives are available, including the original JST XH series part, offering similar form, fit, and function for various applications.
AI replacement insight
Package risklow
Verify PCB footprint from datasheet as minor variations can exist between clones.
Sourcing risklow
The XH series is multi-sourced, but quality may vary between manufacturers.
Can it be replaced directly?
Direct replacement for ZX-XH2.54-2PZZ-R should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use the original JST part B2B-XH-A(LF)(SN) for the highest confidence and guaranteed compatibility within the XH connector system.
Main risk
Minor mechanical differences in housing dimensions or pin plating between various manufacturers of XH-style connectors.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | ZX-XH2.54-2PZZ-R | B2B-XH-A(LF)(SN) | HC-XH-2A-G | XH-2AK米色 | Compatibility / risk |
|---|---|---|---|---|---|
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm | 2.5mm — Matches target.; HC-XH-2A-G: Matches target.; XH-2AK米色: Matches target. |
| Positions | 2 | 2 | 2 | 2 | 2 — Matches target.; HC-XH-2A-G: Matches target.; XH-2AK米色: Matches target. |
| Package | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight — Matches target form factor.; HC-XH-2A-G: Matches target form factor.; XH-2AK米色: Matches target form factor. |
| Current | 3A | 3A | 3A | 3A (from datasheet) | 3A / 3A (from datasheet) — Matches target rating.; HC-XH-2A-G: Matches target rating.; XH-2AK米色: Not in structured data, must verify in PDF. |
| Voltage | 250V | 250V | 250V | 250V (from datasheet) | 250V / 250V (from datasheet) — Matches target rating.; HC-XH-2A-G: Matches target rating.; XH-2AK米色: Not in structured data, must verify in PDF. |
Application & sourcing insights
Questions & answers
Verified drop-in options for ZX-XH2.54-2PZZ-R 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.