# 1N4148W

**Diodes Incorporated** · Fast switching diode · SOD-123

Surface-mount fast switching diode in a SOD-123 package. Features a low forward voltage of 0.715V max at 1mA, fast reverse recovery time of 4ns max, and low junction capacitance of 2pF max. Rated for 100V reverse voltage and 300mA continuous forward current, suitable for general-purpose switching applications.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A | passive | Anode terminal of the switching diode. Forward current flows from anode to cathode; rated for 300mA continuous forward current (IFM) with a maximum forward voltage of 0.715V at 1mA. |
| 2 | K | passive | Cathode terminal of the switching diode, identified by the cathode band marking on the package top. Rated for 100V peak repetitive reverse voltage (VRRM) with maximum peak reverse current of 1.0µA at VR = 75V. |

## Key specifications

| Parameter | Value |
|---|---|
| Type | Fast switching diode |
| Reverse voltage (VRRM) | 100 V |
| Forward current (IFM) | 300 mA |
| Forward voltage (VF) | 0.715 V max @ 1 mA |
| Reverse recovery (trr) | 4 ns max |
| Junction capacitance (Cj) | 2 pF max |
| Reverse current (IR) | 1.0 µA @ VR = 75 V |
| Package | SOD-123 |
| Body (L×W×H) | 2.65 × 1.55 × 1.05 mm |

## Ordering variants

- `BAV16W-7-F`
- `1N4148W-7-F`
- `1N4148WQ-7-F`
- `1N4148W-13-F`
- `1N4148WQ-13-F`

## CAD (KiCad official)

- Symbol: `Device:D`
- Footprint: `Diode_SMD:D_SOD-123`
- 3D model: SOD-123 (KiCad packages3D)
- 3D model files: `1n4148w-etched.step` / `1n4148w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1n4148w.step` / `1n4148w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated — ds30086](https://www.diodes.com/assets/Datasheets/ds30086.pdf) (5 pp, sha256 `39c16a6888bdab22`, retrieved 2026-08-17, tier: manufacturer)
- **Extractor:** `ds2sf` (Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/1n4148w-datasheet.pdf)