22-position XSR header for tight-pitch board-to-cable links
The SM22B-XSRS-ETB(LF)(SN) is a 22-position, single-row header from JST's XSR series, designed for board-to-cable connections at a 0.60 mm pitch. The 0.60 mm pitch packs 22 circuits into a narrow footprint, which forces tight trace routing on the PCB — plan for 4-layer boards if fan-out gets tight.
Current, voltage, and temperature boundaries
Rated at 0.2 A per contact and 30 V, this header is strictly for low-power signal lines — think sensor inputs, I2C buses, or configuration jumpers, not power delivery. For higher cycle life, consider the gold-plated variants in the XSR family.
Mounting and retention details
The shrouded 4-wall design and friction lock provide basic mating retention, but the lock is a friction latch, not a positive snap; it resists casual vibration but won't hold against high-G shock. The insulation height of 0.057 inches (1.45 mm) keeps the profile low.