# 1N4148PF

**ST Semtech** · Switching Diodes · DO-35

1N4148PF from ST Semtech, in a DO-35. 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 | K | passive | Cathode, the lead on the black cathode-band end of the DO-35 glass case; reverse voltage VR max 75 V (VRM 100 V). |
| 2 | A | passive | Anode, the lead at the end opposite the cathode band; average rectified forward current IF(AV) max 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | DO-35 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1N4148PF`
- Footprint: `Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal`
- 3D model: DO-35 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [ST Semtech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907359252193281) (3 pp, sha256 `c47b1a6a9cf25964`, retrieved 2026-10-12, 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/1n4148pf-datasheet.pdf)