# TPESD7102BT1G

**TECH PUBLIC** · Electrostatic And Surge Protection (TVS/ESD) · SOT-523

TPESD7102BT1G 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 | IO1 | passive | ESD-protected line 1; protection diode to pin 3, 0.3 pF typical between pin 1 and pin 2, 16 V max reverse working voltage. |
| 2 | IO2 | passive | ESD-protected line 2; protection diode to pin 3, 0.3 pF typical between pin 1 and pin 2, 16 V max reverse working voltage. |
| 3 | COMMON | passive | Common connection of both protection diodes; junction capacitance from pin 1 or pin 2 to pin 3 is 1 pF typical and 1.2 pF max. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-523 |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `TPESD7102BT1G`
- 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)

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tpesd7102bt1g-datasheet.pdf) (4 pp, sha256 `1bbe18171d2760be`, retrieved 2026-11-04, 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/tpesd7102bt1g-datasheet.pdf)