# RCLAMP0502B-TP

**TECH PUBLIC** · ESD Protection Devices · SOT-523

RCLAMP0502B-TP from TECH PUBLIC, in a SOT-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 | I/O1 | passive | Protected line I/O pin with 5 V maximum reverse working voltage and 0.6 pF maximum junction capacitance to ground. |
| 2 | I/O2 | passive | Protected line I/O pin with 5 V maximum reverse working voltage and 0.6 pF maximum junction capacitance to ground, and 0.35 pF maximum between the two I/O pins. |
| 3 | GND | power_in | Common ground connection of the two TVS diodes, the reference for the I/O-to-ground capacitance and clamping specifications. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-523 |
| Category | Circuit Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `RCLAMP0502B-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `rclamp0502b-tp-etched.step` / `rclamp0502b-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rclamp0502b-tp.step` / `rclamp0502b-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/rclamp0502b-tp-datasheet.pdf) (4 pp, sha256 `a421c4e36b9f2720`, retrieved 2026-10-27, 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/rclamp0502b-tp-datasheet.pdf)