# BM11B-GHS-TBT

**JST** · Wire To Board Connector · JST_GH_BM11B-GHS-TBT_1x11-1MP_P1.25mm_Vertical

BM11B-GHS-TBT from JST, in a JST_GH_BM11B-GHS-TBT_1x11-1MP_P1.25mm_Vertical. 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 | Contact 1; numbering follows the footprint. |
| 2 | 2 | passive | Contact 2; numbering follows the footprint. |
| 3 | 3 | passive | Contact 3; numbering follows the footprint. |
| 4 | 4 | passive | Contact 4; numbering follows the footprint. |
| 5 | 5 | passive | Contact 5; numbering follows the footprint. |
| 6 | 6 | passive | Contact 6; numbering follows the footprint. |
| 7 | 7 | passive | Contact 7; numbering follows the footprint. |
| 8 | 8 | passive | Contact 8; numbering follows the footprint. |
| 9 | 9 | passive | Contact 9; numbering follows the footprint. |
| 10 | 10 | passive | Contact 10; numbering follows the footprint. |
| 11 | 11 | passive | Contact 11; numbering follows the footprint. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Package | JST_GH_BM11B-GHS-TBT_1x11-1MP_P1.25mm_Vertical |
| Category | Connectors |
| Pins | 11 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Contact resistance, initial value |  |  |  | 30 | mΩ | Initial value | 1 |
| Contact resistance, after environmental tests |  |  |  | 50 | mΩ | After environmental tests | 1 |
| Insulation resistance |  | 100 |  |  | MΩ |  | 1 |
| Withstanding voltage |  | 500 |  |  | VAC | /minute | 1 |
| Current rating |  |  |  | 1 | A AC/DC | AWG #26 | 1 |
| Voltage rating |  |  |  | 50 | V AC/DC |  | 1 |
| Temperature range |  | -25 |  | 85 | ℃ | Including temperature rise in applying electrical current | 1 |
| Applicable wire insulation O.D. |  | 0.76 |  | 1 | mm | Applicable wire, contact part (SSHL-002T-P0.2) | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PA 9T |  | Housing: PA 9T, UL94V-0, natural (ivory) | 2 |
| contacts |  | gold | Note: 1. Contact JST for gold-plated product. 2. This contact can be applied only for the GH connector. | 1 |

## CAD (KiCad official)

- Symbol: `BM11B-GHS-TBT`
- Footprint: `Connector_JST:JST_GH_BM11B-GHS-TBT_1x11-1MP_P1.25mm_Vertical`
- 3D model: JST_GH_BM11B-GHS-TBT_1x11-1MP_P1.25mm_Vertical (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [JST datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902931405828096) (5 pp, sha256 ``, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `connector numbering` (convention), consensus `off` (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/bm11b-ghs-tbt-datasheet.pdf)