# ESD9N5BU-TP

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

ESD9N5BU-TP 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 | Pin1 | passive | One terminal of the bidirectional TVS clamp (Pin1 to Pin2), rated for a reverse working voltage of 5 V max, breakdown of 6.5 V min at 1 mA, and clamping of 9 V at 1 A and 15 V at 2 A (8x20 µs). |
| 2 | Pin2 | passive | The other terminal of the bidirectional TVS clamp (Pin2 to Pin1), with the same 5 V max reverse working voltage and 0.8 pF max junction capacitance (Pin1-Pin2) stated in the electrical characteristics. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ESD9N5BU-TP`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `esd9n5bu-tp-etched.step` / `esd9n5bu-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9n5bu-tp.step` / `esd9n5bu-tp.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/8589835479303548928) (4 pp, sha256 `a57d0a85d6d0b934`, retrieved 2026-10-15, 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/esd9n5bu-tp-datasheet.pdf)