# WE05D5BC-B

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOD-523

WE05D5BC-B from TECH PUBLIC, in a SOD-523. 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 | Pin1 (TVS terminal) | passive | One of the two terminals of the bidirectional TVS diode, specified with reverse working voltage VRWM of 5 V max and breakdown voltage VBR of 6.5 V min at IT = 1 mA (Pin1-Pin2). |
| 2 | Pin2 (TVS terminal) | passive | The other terminal of the bidirectional TVS diode, with reverse leakage IR of 0.08 µA max at VRWM = 5.0 V (Pin2-Pin1) and junction capacitance CJ of 0.6 typ / 0.9 max pF at VR = 0 V, 1 MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOD-523 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `WE05D5BC-B`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `we05d5bc-b-etched.step` / `we05d5bc-b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `we05d5bc-b.step` / `we05d5bc-b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/we05d5bc-b-datasheet.pdf) (4 pp, sha256 `0f9f2e44768e2475`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/we05d5bc-b-datasheet.pdf)