# BDFN2A051U

**BORN** · TVS · DFN1006-2L

BDFN2A051U from BORN, in a DFN1006-2L. 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 | One of the two terminals of the TVS diode that protects one I/O or power line; the datasheet does not state its individual function or polarity. |
| 2 | 2 | passive | The second of the two terminals of the TVS diode that protects one I/O or power line; the datasheet does not state its individual function or polarity. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | DFN1006-2L |
| Category | Circuit Protection |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM |  | 5 | 5.5 | V |  | 2 |
| Reverse Breakdown Voltage | VBR | 6 |  |  | V | IT=1mA | 2 |
| Reverse Leakage Current | IR |  |  | 1 | μA | VRWM=5V, T=25°C | 2 |
| Clamping Voltage | VC |  | 8.5 | 12.5 | V | IPP=1A,tp=8/20μs | 2 |
| Junction Capacitance | Cj |  | 0.5 | 0.8 | pF | VR = 0V, f= 1MHz | 2 |
| Electrostatic discharge Voltage (contact) | VESD |  |  | 8 | KV | contact | 2 |
| Electrostatic discharge Voltage (air) | VESD |  |  | 15 | KV | air | 2 |
| Operating Temperature | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `BDFN2A051U`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `bdfn2a051u-etched.step` / `bdfn2a051u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bdfn2a051u.step` / `bdfn2a051u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BORN datasheet](docs/bdfn2a051u-datasheet.pdf) (4 pp, sha256 `d6703e0b773610a0`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/bdfn2a051u-datasheet.pdf)