# LM-BDFN2C051RF2

**Leiditech** · Electrostatic And Surge Protection (TVS/ESD) · DFN1006-2

LM-BDFN2C051RF2 from Leiditech, 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 | Bi-directional TVS diode terminal 1 (no polarity), 5V reverse working voltage, protects the line from ESD per IEC 61000-4-2 (±30kV air/contact). |
| 2 | 2 | passive | Bi-directional TVS diode terminal 2 (no polarity), 5V reverse working voltage, protects the line from ESD per IEC 61000-4-2 (±30kV air/contact). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | DFN1006-2 |
| Category | TVS/Fuse/Board Level 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 Working Voltage | VRWM |  |  | 5 | V |  | 2 |
| Breakdown Voltage | VBR | 6.5 |  |  | V | IT = 1mA | 2 |
| Reverse Leakage Current | IR |  |  | 0.2 | µA | VRWM = 5V | 2 |
| Clamping Voltage | VC |  | 9.5 | 12 | V | IPP = 1A (8 x 20 µs pulse) | 2 |
| Clamping Voltage | VC |  |  | 25 | V | IPP = 4A (8 x 20 µs pulse) | 2 |
| Junction Capacitance | CJ |  | 0.3 | 0.5 | pF | V = 0V, f = 1MHz | 2 |
| Peak Pulse Power | Ppp |  |  | 100 | W | 8/20µs, Tamb=25°C | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | Tamb=25°C | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | Tamb=25°C | 1 |
| Operating Temperature Range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `LM-BDFN2C051RF2`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `lm-bdfn2c051rf2-etched.step` / `lm-bdfn2c051rf2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm-bdfn2c051rf2.step` / `lm-bdfn2c051rf2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](docs/lm-bdfn2c051rf2-datasheet.pdf) (4 pp, sha256 `ba5ae633002e3ce7`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/lm-bdfn2c051rf2-datasheet.pdf)