# TPESD9N5B

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

TPESD9N5B 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 1-line bidirectional TVS diode (two back-to-back diodes between pins 1 and 2), rated for a reverse working voltage VRWM of 5 V max and a breakdown voltage VBR of 5.6 V min to 8.4 V max at IT = 1 mA. |
| 2 | 2 | passive | Terminal 2 of the 1-line bidirectional TVS diode (two back-to-back diodes between pins 1 and 2), with the same ratings as pin 1: VRWM 5 V max, VBR 5.6 V to 8.4 V, and typical junction capacitance of 15 pF at VR = 0 V, f = 1 MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | DFN1006-2 |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `TPESD9N5B`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `tpesd9n5b-etched.step` / `tpesd9n5b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpesd9n5b.step` / `tpesd9n5b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tpesd9n5b-datasheet.pdf) (4 pp, sha256 `f0d0ad0ef1ed8570`, 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/tpesd9n5b-datasheet.pdf)