# P4KE20A

**LGE** · ESD And Surge Protection (TVS/ESD) · DO-41

P4KE20A from LGE, in a DO-41. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | DO-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 19 |  | 21 | V | @IT 1 mA | 2 |
| Maximum Reverse Leakage | IR |  |  | 1 | uA | @VRWM | 2 |
| Maximum Clamping Voltage | VC |  |  | 27.7 | V | @IPP 14.44 A | 2 |
| Maximum Reverse Surge Current | IPP |  |  | 14.44 | A |  | 2 |
| Working Peak Reverse Voltage | VRWM |  | 17.1 |  | V |  | 2 |
| Peak Power Dissipation | PPK | 400 |  |  | Watts | TA=25 C, Tp=1ms (Note 1) | 1 |
| Steady State Power Dissipation | PD |  |  | 1 | Watts | TL=75 C, lead lengths 9.5mm (Note 2) | 1 |
| Peak Forward Surge Current | IFSM |  |  | 40 | Amps | 8.3 ms single half sine-wave, JEDEC method (Note 3) | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 3.5 | Volts | at 25.0A, unidirectional only, VBR <= 200V (Note 4) | 1 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 |  | 150 | C |  | 1 |

## CAD (KiCad official)

- Symbol: `P4KE20A`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [LGE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588889724626460672) (4 pp, sha256 `d0b3466829280857`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/p4ke20a-datasheet.pdf)