XD-XH-3A-G
XUNDA
Needs validationmedium risk
A 3-pin, 2.5mm pitch straight header with a compatible PCB footprint, but from a different connector series requiring mating part review.
Best Alternatives to B03B-XASK-1N(LF)(SN)
Finding a replacement for the JST B03B-XASK-1N(LF)(SN) 3-pin header involves checking both PCB footprint and mating compatibility. Several alternatives exist with the same footprint but belong to the different XH connector series, requiring careful review.
AI replacement insight
Package riskhigh
Connector series mismatch (XA vs. XH) prevents mating with original housing.
Electrical risklow
Voltage, current, and temperature ratings are well-matched.
Can it be replaced directly?
No direct drop-in replacement has been identified. While many parts have a compatible PCB footprint, they belong to the different XH series and are not mating-compatible with the target's XA series.
Best replacement path
Find a substitute within the JST XA series or replace both male and female connectors with a new pair from a common series like XH.
Main risk
Mating Incompatibility: Substitutes from the XH series will not connect with the original XA series female housing.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | B03B-XASK-1N(LF)(SN) | XD-XH-3A-G | XH-3A-P | XH-3PA | Compatibility / risk |
|---|---|---|---|---|---|
| Family | XA Series | XH Series | XH Series | XH Series | XH Series — Not mating compatible with target's XA series.; XH-3A-P: Not mating compatible with target's XA series.; XH-3PA: Not mating compatible with target's XA series.; XH-D-3A: Not mating compatible with target's XA series. |
| Package | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight — PCB footprint is compatible, but housing differs.; XH-3A-P: PCB footprint is compatible, but housing differs.; XH-3PA: PCB footprint is compatible, but housing differs.; XH-D-3A: PCB footprint is compatible, but housing differs. |
| Ratings | 3A / 250V | 3A / 250V | 3A / 250V | 3A / 250V | 3A / 250V — matched; XH-3A-P: matched; XH-3PA: matched; XH-D-3A: matched |
| Pin Count | 3 | - | - | - | 3 — matched |
| Pitch | 2.5mm | - | - | - | 2.5mm — matched |
Application & sourcing insights
Questions & answers
The best alternatives, such as DEALON XH-D-3A, share the same PCB layout and electrical ratings but are from the XH series. This requires replacing the mating female connector as well.