# UCLAMP0505A

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-563

UCLAMP0505A from TECH PUBLIC, in a SOT-563. 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 | IO1 | passive | ESD-protected I/O line 1, steered by the diode pair to the common rail and clamped with a 14 V max clamping voltage at 8 A (8/20 µs). |
| 2 | GND | power_in | Ground reference pin connected to the common rail of the diode array; junction capacitance of 60 pF typ is specified from IO to GND. |
| 3 | IO2 | passive | ESD-protected I/O line 2 with 5 V reverse working voltage and ±30 kV air/contact ESD rating per IEC 61000-4-2. |
| 4 | IO3 | passive | ESD-protected I/O line 3 with 5 V reverse working voltage and 0.1 µA max leakage at VRWM = 5 V. |
| 5 | IO4 | passive | ESD-protected I/O line 4 with 30 pF typ line-to-line junction capacitance (VR = 0 V, f = 1 MHz). |
| 6 | IO5 | passive | ESD-protected I/O line 5 with 6.5 V min breakdown voltage at IT = 1 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-563 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `UCLAMP0505A`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `uclamp0505a-etched.step` / `uclamp0505a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uclamp0505a.step` / `uclamp0505a.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/8603387398793949184) (4 pp, sha256 `5be02cd0dcbdaac4`, retrieved 2026-10-09, 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/uclamp0505a-datasheet.pdf)