# TPRCLAMP0521P

**TECH PUBLIC** · ESD Protection Devices · DFN1006-2

TPRCLAMP0521P from TECH PUBLIC, in a DFN1006-2. 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 | 1 | passive | One terminal of the 1-line bidirectional TVS diode, shown on the terminal diagram as the pin-1 side across the protected line, with a reverse working voltage of 5 V max and 9 V max clamping at 1 A (8/20 µs). |
| 2 | 2 | passive | The other terminal of the 1-line bidirectional TVS diode, connected to pin 1 through the bidirectional clamp, with a reverse working voltage of 5 V max and 18 V max clamping at 4 A (8/20 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | DFN1006-2 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `TPRCLAMP0521P`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `tprclamp0521p-etched.step` / `tprclamp0521p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tprclamp0521p.step` / `tprclamp0521p.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tprclamp0521p-datasheet.pdf) (4 pp, sha256 `6ce2131d5c4b4e94`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/tprclamp0521p-datasheet.pdf)