
JST XA 5-pin 2.5mm TH header has similar ratings but different series mechanics.
B5B-XH-A(LF)(SN) is a 5-pin 2.5mm JST XH through-hole header. Alternatives need careful footprint and mating-housing review.
kept parts match 3A and 250V
TH mount matches, footprint not proven
passive connector
cross-vendor data needs confirmation
No verified pin-compatible replacement is proven from these candidates.
Check HC-XHB-5A or B05B-XASK-1(LF)(SN) only after footprint and mating connector review.
Mechanical fit, shroud keying, and mating housing compatibility.

JST XA 5-pin 2.5mm TH header has similar ratings but different series mechanics.
| Feature / factor | B5B-XH-A(LF)(SN) | B05B-XASK-1(LF)(SN) | HC-XHB-5A | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole | Through Hole | - | Through Hole — mount type matches | |
| Pinout | 5 pos, 1 row, 2.5mm | 5 pos, 1 row, 2.5mm | - | 5 pos, rows missing, 2.5mm — row count not explicit | |
| Application | JST XH shrouded header | JST XA shrouded header | - | JST XA shrouded header — mating/keying may differ | |
| Current | 3 A | 3 A | - | 3 A — same rating | |
| Voltage | 250 V | 250 V | - | 250 V — same rating | |
| Temperature | -25C to +85C | - | -25C to +85C | -25C to +85C — from web evidence |
HC-XHB-5A and B05B-XASK-1(LF)(SN) are the closest candidates, but both need mechanical review.