# UCLAMP3301P

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · DFN1006-2

UCLAMP3301P 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 | Terminal 1 of the uni-directional TVS diode, with a reverse working voltage of 3.3V max, a reverse leakage of 0.08uA max at VRWM = 3.3V, and a junction capacitance of 0.45pF typical (0.5pF max) between Pin 1 and Pin 2 at VR = 0V, f = 1MHz. |
| 2 | 2 | passive | Terminal 2 of the uni-directional TVS diode, forming the other side of the protected line with Pin 1, with a breakdown voltage of 4.2V min at IT = 1mA and a clamping voltage of 15V max at Ipp = 4A (8/20us pulse). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `UCLAMP3301P`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `uclamp3301p-etched.step` / `uclamp3301p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uclamp3301p.step` / `uclamp3301p.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931184791220224) (4 pp, sha256 `fc01c8d2175c6216`, retrieved 2026-10-21, 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/uclamp3301p-datasheet.pdf)