# WSB5546N-2

**WILLSEMI(Will Semicon)** · Schottky Barrier Diodes (SBD) · DFN1006-2L

WSB5546N-2 from WILLSEMI(Will Semicon), in a DFN1006-2L. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI(Will Semicon) |
| Package | DFN1006-2L |
| Category | Diodes |
| Pins | 2 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF |  | 0.51 | 0.6 | V | IF=0.2A | 1 |
| Reverse current | IR |  |  | 0.5 | uA | VR=10V | 1 |
| Reverse current | IR |  |  | 1 | uA | VR=40V | 1 |
| Thermal resistance junction to ambient | Rθ(j-a) |  |  | 500 | K/W | Junction to ambient | 1 |
| Reverse voltage (repetitive peak) | VRM |  |  | 40 | V |  | 1 |
| Reverse voltage (DC) | VR |  |  | 40 | V |  | 1 |
| Average rectified forward current | IO |  |  | 0.2 | A |  | 1 |
| Peak forward current | IFSM |  |  | 3 | A | Pulse Width=8.3ms, Single half-sine Pulse | 1 |
| Junction temperature | TJ |  |  | 150 | OC |  | 1 |
| Operating temperature | Topr | -40 |  | 150 | OC |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | OC |  | 1 |
| Junction capacitance | CJ |  | 17 |  | pF | VR=4V, F=1MHz | 1 |

## CAD (KiCad official)

- Symbol: `WSB5546N-2`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `wsb5546n-2-etched.step` / `wsb5546n-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wsb5546n-2.step` / `wsb5546n-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WILLSEMI(Will Semicon) datasheet](docs/wsb5546n-2-datasheet.pdf) (4 pp, sha256 `77128f9bb21ae70e`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/wsb5546n-2-datasheet.pdf)