# B3B-PH-K-S

**JST** · Wire To Board Connector · JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical

B3B-PH-K-S from JST, in a JST_PH_B3B-PH-K_1x03_P2.00mm_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 | Circuit No.1 contact, which is the end marked 'Circuit No.1' on the through-hole drawing; the datasheet gives no pin-specific function and states connector ratings of 2A AC/DC (AWG #24) and 100V AC/DC. |
| 2 | 2 | passive | Circuit No.2 contact on the 2.0 mm pitch row; the datasheet gives no pin-specific function and states connector ratings of 2A AC/DC (AWG #24) and 100V AC/DC. |
| 3 | 3 | passive | Circuit No.3 contact at the far end of the 2.0 mm pitch row; the datasheet gives no pin-specific function and states connector ratings of 2A AC/DC (AWG #24) and 100V AC/DC. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Package | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical |
| Category | Connectors |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Current rating |  |  |  | 2 | A | AC, DC; AWG #24 wire | 1 |
| Voltage rating |  |  |  | 100 | V | AC, DC | 1 |
| Temperature range |  | -25 |  | 85 | °C | Including temperature rise in applying electrical current | 1 |
| Contact resistance |  |  |  | 10 | mΩ | Initial value | 1 |
| Contact resistance |  |  |  | 20 | mΩ | After environmental testing | 1 |
| Insulation resistance |  | 1000 |  |  | MΩ |  | 1 |
| Withstanding voltage |  | 800 |  |  | V AC | 1 minute | 1 |
| Applicable PC board thickness |  | 0.8 |  | 1.6 | mm |  | 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 | 1. Contact JST for gold-plated products. 2. SPH-002T-P0.5L is low-insertion force type contact, for easier insertion/ | 2 |

## CAD (KiCad official)

- Symbol: `B3B-PH-K-S`
- Footprint: `Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical`
- 3D model: JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical (KiCad packages3D, STEP)
- 3D model files: `b3b-ph-k-s-etched.step` / `b3b-ph-k-s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b3b-ph-k-s.step` / `b3b-ph-k-s.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/8588889744629907456) (4 pp, sha256 `53d4704a03e4fc2b`, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/b3b-ph-k-s-datasheet.pdf)