# B4P-VH-FB-B

**JST** · Wire To Board Connector · 插件,P=3.96mm

B4P-VH-FB-B from JST, in a 插件,P=3.96mm. 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 post of the 4-circuit VH header, 3.96 mm pitch, rated 10 A AC/DC, 250 V AC/DC. |
| 2 | 2 | passive | Circuit No.2 post of the 4-circuit VH header, 3.96 mm pitch, rated 10 A AC/DC, 250 V AC/DC. |
| 3 | 3 | passive | Circuit No.3 post of the 4-circuit VH header, 3.96 mm pitch, rated 10 A AC/DC, 250 V AC/DC. |
| 4 | 4 | passive | Circuit No.4 post of the 4-circuit VH header, 3.96 mm pitch, rated 10 A AC/DC, 250 V AC/DC. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Package | 插件,P=3.96mm |
| Category | Connectors |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `B4P-VH-FB-B`
- Footprint: `Connector_JST:JST_VH_B4P-VH-FB-B_1x04_P3.96mm_Vertical`
- 3D model: 插件,P=3.96mm (KiCad packages3D, STEP)
- 3D model files: `b4p-vh-fb-b-lf-sn-etched.step` / `b4p-vh-fb-b-lf-sn-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b4p-vh-fb-b-lf-sn.step` / `b4p-vh-fb-b-lf-sn.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/8588890090349744129) (4 pp, sha256 `81749febb7219778`, 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/b4p-vh-fb-b-lf-sn-datasheet.pdf)