The BM10B-GVHS-TB is a 10-position, single-row surface-mount header from JST's GVH series, pitched at 1.25 mm. It mates with a corresponding GVH crimp receptacle to form a wire-to-board interconnect. The operating temperature range is -25°C to 85°C, and the housing material is PA6T rated UL94 V-0.
Note that the part is listed as RoHS non-compliant. If your application requires RoHS compliance, verify the specific date-code or check for the alternate suffix (LF)(SN) variant.
The BM04B-GVHS-TB is the same GVH series and form factor, but with 4 positions instead of 10. Both share the 1.25 mm pitch, 1 A rating, latch holder, and 8.8 mm mated stack height. Compared to the GH series header BM11B-GHS-TBT (11 positions, 1.25 mm pitch, locking ramp), the GVH uses a latch holder rather than a locking ramp, and the mated stack height is 8.8 mm versus 7.3 mm. The latch holder provides a different tactile lock feel and may require a different mating receptacle.