# B10B-EH

**JST** · Wire To Board Connector · JST_EH_B10B-EH-A_1x10_P2.50mm_Vertical

B10B-EH from JST, in a JST_EH_B10B-EH-A_1x10_P2.50mm_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. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Package | JST_EH_B10B-EH-A_1x10_P2.50mm_Vertical |
| Category | Connectors |
| Pins | 10 |

## 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 |  |  |  | 10 | mΩ | Initial value | 1 |
| Contact resistance, after environmental tests |  |  |  | 20 | mΩ | After environmental tests | 1 |
| Insulation resistance |  | 1000 |  |  | MΩ |  | 1 |
| Withstanding voltage |  |  |  | 800 | VAC | per minute | 1 |
| Voltage rating |  |  |  | 250 | V AC/DC |  | 1 |
| Current rating |  |  |  | 3 | A AC/DC | AWG #22 wire | 1 |
| Operating temperature range |  | -25 |  | 85 | ℃ | Including temperature rise in applying electrical current | 1 |
| Applicable PC board thickness |  | 0.8 |  | 1.6 | mm |  | 1 |
| Center-to-center pitch tolerance |  | -0.05 |  | 0.05 | mm | Tolerances are non-cumulative, for all centers | 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 |
|---|---|---|---|---|
| contacts |  | gold | Note: 1. Contact JST for gold-plated products. 2. SEH-00( )T-P0.6L is low-insertion force type contact, for easier | 1 |

## CAD (KiCad official)

- Symbol: `B10B-EH`
- Footprint: `Connector_JST:JST_EH_B10B-EH-A_1x10_P2.50mm_Vertical`
- 3D model: JST_EH_B10B-EH-A_1x10_P2.50mm_Vertical (KiCad packages3D, STEP)
- 3D model files: `b10b-eh-etched.step` / `b10b-eh-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b10b-eh.step` / `b10b-eh.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JST datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590001925736194048) (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/b10b-eh-datasheet.pdf)