# FDLL4148

**onsemi** · Switching Diodes · SOD-80

FDLL4148 from onsemi, in a SOD-80. 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 terminal, marked by the black color band (the wider first band) on the SOD-80 body; the diode has VRRM of 100 V and DC forward current of 300 mA. |
| 2 | A | passive | Anode terminal at the end opposite the cathode band; average rectified forward current is 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-80 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `FDLL4148`
- Footprint: `Diode_SMD:D_MiniMELF`
- 3D model: SOD-80 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176125634953216) (7 pp, sha256 `2aa417b8065dadc5`, 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/fdll4148-datasheet.pdf)