JST Sales America Inc. XA series, Board to Cable/Wire, 12 Positions, 2.50mm Pitch, Through Hole, Tin Contacts, Locking Ramp, UL94 V-0
| Parameter | Value |
|---|---|
| Series | XA |
| Gender | Male Pin |
| Mounting type | 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 |
| Mated stacking heights | 11.3mm |
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Bulk |
| Shrouding | Shrouded - 4 Wall |
| Termination | Press-Fit, Solder |
| Contact shape | Circular |
| Rows | 1 |
| Pitch | 0.098\" (2.50mm) |
| Positions | 12 |
| Contact finish - post | Tin |
| Contact length - post | 0.134\" (3.40mm) |
| Contact finish - mating | Tin |
The B12B-XASK-1(LF)(SN): It mates with the corresponding XA crimp receptacle housing to form a locked wire-to-board connection.
The B12B-XASK-1-A adds a board guide feature to the same 12-position, 2.50 mm pitch header — otherwise identical in ratings, material, and dimensions. For a lower circuit count, the B11B-XASK-1 offers 11 positions with the same pitch, current, and voltage rating.
The pinout follows the standard XA series single-row layout: positions 1 through 12 in a linear 2.50 mm pitch. The mating receptacle uses crimp terminals; the wiring order matches the header pin numbering on the PCB footprint.
The B12B-XASK-1 (without the LF(SN) suffix) is functionally identical — same pitch, positions, current, voltage, and locking ramp. The only difference is the RoHS compliance marking; both are active.