Board-to-wire header for 1.00 mm pitch harnesses
The BM04B-SRSS-TB: This JST SH/SR series header is a 4-position, single-row surface-mount male pin header on 1.00 mm pitch, rated 1 A per contact at 50 V.

JST Sales America Inc. SH/SR series header, order code BM04B-SRSS-TB, 4 positions, single row, 1.00 mm pitch, 1 A, 50 V, tin-plated mating contacts, surface mount, solder retention, shrouded 4-wall, UL94 V-0.
| Parameter | Value |
|---|---|
| Series | SH/SR |
| Gender | Male Pin |
| Mounting type | Surface Mount |
| Connector type | Header |
| Fastening type | Push-Pull |
| Voltage rating | 50V |
| Current rating | 1A |
| Operating temperature | -25°C ~ 85°C |
| Contact material | Copper Alloy |
| Insulation color | Natural |
| Insulation height | 0.167\" (4.25mm) |
| Insulation material | Polyamide (PA), Nylon |
| Mated stacking heights | 4.9mm |
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | Solder Retention |
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.039\" (1.00mm) |
| Positions | 4 |
| Contact finish - post | Tin |
| Contact finish - mating | Tin |
The BM04B-SRSS-TB: This JST SH/SR series header is a 4-position, single-row surface-mount male pin header on 1.00 mm pitch, rated 1 A per contact at 50 V.
The BM04B-SRSS-TB(LF)(SN) variant is a direct drop-in: same 4 positions, 1.00 mm pitch, 1 A rating, and shrouded SMT header. The difference is RoHS compliance — the LF(SN) suffix indicates lead-free.
This header mates with JST SH/SR series crimp receptacles (e.g., SR series housing with SSH-003T-P0.2 contacts). The 4-wall shroud aligns the receptacle and prevents pin damage during mating.