# ESD5B5VL

**UMW** · ESD And Surge Protection (TVS/ESD) · SOD-523

ESD5B5VL from UMW, in a SOD-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 | Pin1 | passive | One terminal of the bi-directional TVS line protection, rated for a stand-off voltage of ±5V max and ESD protection of ±8kV contact discharge per IEC61000-4-2. |
| 2 | Pin2 | passive | The other terminal of the bi-directional TVS line protection, rated for a stand-off voltage of ±5V max and ESD protection of ±8kV contact discharge per IEC61000-4-2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-523 |
| 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 | V |  | 3 |
| Reverse leakage current | IR |  |  | 1 | µA | VRWM=5V | 3 |
| Reverse breakdown voltage (IT=1mA) | VBR12 | 6.5 | 7.7 | 8.1 | V | IT=1mA | 3 |
| Reverse breakdown voltage (IF=1mA, opposite polarity) | VBR21 | 6.5 | 7.8 | 8.1 | V | IF=1mA | 3 |
| Clamping voltage | VC |  |  | 10 | V | Ipp=1A, tp=8/20µs | 3 |
| Clamping voltage | VC |  |  | 14 | V | Ipp=3.5A, tp=8/20µs | 3 |
| Peak pulse power | PPK |  |  | 50 | W | tp=8/20µs | 2 |
| Peak pulse current | IPP |  |  | 3.5 | A | tp=8/20µs | 2 |
| ESD according to IEC61000-4-2 air discharge | VESD | -15 |  | 15 | kV | IEC61000-4-2 air discharge | 2 |
| ESD according to IEC61000-4-2 contact discharge | VESD | -8 |  | 8 | kV | IEC61000-4-2 contact discharge | 2 |
| Junction temperature | TJ |  |  | 125 | °C |  | 2 |
| Operating temperature | TOP | -40 |  | 85 | °C |  | 2 |
| Lead temperature | TL |  |  | 260 | °C |  | 2 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `ESD5B5VL`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esd5b5vl-etched.step` / `esd5b5vl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5b5vl.step` / `esd5b5vl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755877134206144512) (8 pp, sha256 `f577b6516995463e`, retrieved 2026-10-15, 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/esd5b5vl-datasheet.pdf)