# TPB03A40-523-2

**TECH PUBLIC** · Schottky Diodes · SOD-523

TPB03A40-523-2 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 | CATHODE | passive | Cathode of the Schottky rectifier (banded end), with VRRM 40 V and average forward current IF(AV) 0.35 A. |
| 2 | ANODE | passive | Anode of the Schottky rectifier, with forward voltage max 0.37 V at IF=20 mA and 0.6 V at IF=200 mA. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPB03A40-523-2`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `tpb03a40-523-2-etched.step` / `tpb03a40-523-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpb03a40-523-2.step` / `tpb03a40-523-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tpb03a40-523-2-datasheet.pdf) (4 pp, sha256 `c52bb2bed833c918`, 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/tpb03a40-523-2-datasheet.pdf)