# BM03B-SRSS-TB

**JST** · Wire To Board Connector · SMD,P=1mm

BM03B-SRSS-TB from JST, in a SMD,P=1mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1 | passive | Circuit No.1 contact at 1.0mm pitch, rated 0.7A DC and 50V DC, for AWG #30 wire. |
| 2 | 2 | passive | Circuit 2 contact at 1.0mm pitch, rated 0.7A DC and 50V DC, for AWG #30 wire. |
| 3 | 3 | passive | Circuit 3 contact at 1.0mm pitch, rated 0.7A DC and 50V DC, for AWG #30 wire. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Package | SMD,P=1mm |
| Category | Connectors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BM03B-SRSS-TB`
- Footprint: `Connector_JST:JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical`
- 3D model: SMD,P=1mm (KiCad packages3D, STEP)

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [JST datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8578177173057949696) (3 pp, sha256 `8f01930d3601fd55`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bm03b-srss-tb-lf-sn-datasheet.pdf)