# SS104B

**FUXINSEMI** · Schottky Barrier Diodes (SBD) · SMB(DO-214AA)

SS104B from FUXINSEMI, in a SMB(DO-214AA). 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 terminal marked by the polarity band on the body; SS104B is rated at 40V VRRM, 10.0A average forward current, and 150.0A peak surge current. |
| 2 | A | passive | Anode terminal, the end without the polarity band; forward voltage is 0.55V at 10.0A for SS104B. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FUXINSEMI |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SS104B`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `ss104b-etched.step` / `ss104b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ss104b.step` / `ss104b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [FUXINSEMI datasheet](docs/ss104b-datasheet.pdf) (2 pp, sha256 `fb8428d9355d31a5`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/ss104b-datasheet.pdf)