JST XA series, 3-position, 2.50mm pitch, shrouded header, through-hole, tin-plated male pins, 3A at 250V, locking ramp, UL94 V-0, natural insulator.
| Parameter | Value |
|---|---|
| Series | XA |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Locking Ramp |
| Voltage rating | 250V |
| Current rating | 3A |
| Operating temperature | -25°C~85°C |
| Contact material | Copper Alloy |
| Insulation color | Natural |
| Insulation height | 0.346\" (8.80mm) |
| Insulation material | Polyamide (PA66), Nylon 6/6, Glass Filled |
| Parameter | Value |
|---|---|
| Mated stacking heights | 11.3mm |
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Bulk |
| Features | Board Guide |
| Shrouding | Shrouded - 4 Wall |
| Termination | Press-Fit, Solder |
| Contact shape | Circular |
| Rows | 1 |
| Pitch | 0.098\" (2.50mm) |
| Positions | 3 |
| Contact finish - post | Tin |
| Contact length - post | 0.118\" (3.00mm) |
| Contact finish - mating | Tin |
The B03B-XASK-1-A(LF)(SN): The tin-plated mating surface keeps contact resistance stable across that span, but the derating curve starts above 85°C — if the ambient around the header hits that ceiling, the per-contact current needs to come down to stay within the housing material limit.
Termination is press-fit with a solder tail — the post length is 3.00 mm, which gives enough stand-off for the solder fillet to form cleanly on the through-hole pad.
This header mates with the JST XA series crimp receptacle housing.