# 5KP28CA

**RUILON Shenzhen Ruilongyuan Elec** · ESD And Surge Protection (TVS/ESD) · P600

5KP28CA from RUILON Shenzhen Ruilongyuan Elec, in a P600. 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 | RUILON Shenzhen Ruilongyuan Elec |
| Package | P600 |
| 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, minimum (bidirectional 5KP28CA) | VBR | 31.1 |  |  | V | IT = 5 mA | 2 |
| Breakdown voltage, maximum (bidirectional 5KP28CA) | VBR |  |  | 34.4 | V | IT = 5 mA | 2 |
| Reverse leakage current, maximum | IR |  |  | 2 | µA | at VRWM = 28.0 V | 2 |
| Maximum clamping voltage | VC |  |  | 45.4 | V | at IPP = 110.13 A, 10/1000µs | 2 |
| Maximum peak pulse current, 10/1000µs | IPP |  |  | 110.13 | A | 10/1000µs waveform | 2 |
| Peak pulse power dissipation, 10x1000µs | PPP |  |  | 5000 | W | 10x1000µs waveform | 1 |
| Steady state power dissipation | PD |  |  | 8 | W | TL=75°C (Fig. 6) | 1 |
| Operating junction and storage temperature range | TJ,TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `5KP28CA`
- Footprint: `Diode_THT:D_P600_R-6_P20.00mm_Horizontal`
- 3D model: P600 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [RUILON Shenzhen Ruilongyuan Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590208913481236480) (6 pp, sha256 `6d32065daa4de54f`, retrieved 2026-10-15, 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/5kp28ca-datasheet.pdf)