
HCTL
A likely pin-compatible 2-pin straight header from the same manufacturer, HCTL, with matching electrical ratings.
HCTL's XH-2A-L is a standard 2-pin, 2.5mm pitch straight through-hole header used for board-to-wire connections. This page provides a detailed analysis of potential replacements, including pin-compatible options and functional alternatives.
Cross-vendor parts require datasheet comparison of mechanical drawings to ensure footprint and mating compatibility.
Most candidates have identical voltage and current ratings. No significant electrical risk identified.
The XH 2.5mm connector family is widely available from multiple manufacturers, reducing sourcing risk.
Direct replacement for XH-2A-L should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The strongest candidate is HCTL's own XHB-2A-L, which appears to be a direct or very close replacement. For vendor diversification, parts like ZX-XH2.54-2PZZ-Y from Megastar are good options.
The primary risk is mechanical incompatibility. While many 'XH' series connectors are interchangeable, slight differences in housing dimensions or PCB footprint can occur between manufacturers.

HCTL
A likely pin-compatible 2-pin straight header from the same manufacturer, HCTL, with matching electrical ratings.
| Feature / factor | XH-2A-L | XHB-2A-L | XHB-2A-B | XH-2PS | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | HCTL | HCTL | HCTL | DEALON | HCTL / DEALON / Megastar — Same manufacturer.; XHB-2A-B: Same manufacturer.; XH-2PS: Cross-vendor alternative.; ZX-XH2.54-2PZZ-Y: Cross-vendor alternative. |
| Orientation | Straight | Straight | Straight | Straight | Straight — Both are straight/vertical headers.; XHB-2A-B: Both are straight headers.; XH-2PS: Both are straight headers.; ZX-XH2.54-2PZZ-Y: Both are straight headers. |
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm | 2.5mm — Pitch matches.; XHB-2A-B: Pitch matches.; XH-2PS: Pitch matches.; ZX-XH2.54-2PZZ-Y: Pitch matches. |
| Current | 3A | 3A | - | - | 3A — Current rating matches. |
| Voltage | 250V | 250V | - | - | 250V — Voltage rating matches. |
| Color | Natural/White | - | Black | - | Black — Candidate is black, target is likely natural/white. |
| Electrical | 3A / 250V | - | 3A / 250V | 3A / 250V | 3A / 250V — Ratings match.; XH-2PS: Ratings match.; ZX-XH2.54-2PZZ-Y: Ratings match. |
Verified drop-in options for XH-2A-L 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.