# LM-PLR0504F

**Leiditech** · ESD And Surge Protection (TVS/ESD) · SOT-363

LM-PLR0504F from Leiditech, in a SOT-363. 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 | IO1 | passive | ESD/TVS protected line 1 (steering-diode channel), 5V working voltage, ±25kV air / ±20kV contact ESD per IEC 61000-4-2, 0.8pF max junction capacitance. |
| 2 | GND | power_in | Common ground/anode of the internal TVS diode, return path for all four protected lines. |
| 3 | IO3 | passive | ESD/TVS protected line 3 (steering-diode channel), 5V working voltage, ±25kV air / ±20kV contact ESD per IEC 61000-4-2, 0.8pF max junction capacitance. |
| 4 | IO4 | passive | ESD/TVS protected line 4 (steering-diode channel), 5V working voltage, ±25kV air / ±20kV contact ESD per IEC 61000-4-2, 0.8pF max junction capacitance. |
| 5 | VP | passive | Common cathode of the internal TVS diode connected to the steering-diode rail, 5V reverse working voltage (VRWM), 6V min breakdown at 1mA. |
| 6 | IO6 | passive | ESD/TVS protected line 2 (steering-diode channel), 5V working voltage, ±25kV air / ±20kV contact ESD per IEC 61000-4-2, 0.8pF max junction capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power | Ppp |  |  | 100 | W | 8/20µs | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -25 |  | 25 | Kv | IEC 61000-4-2 (Air); printed as ±25 | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -20 |  | 20 | Kv | IEC 61000-4-2 (Contact); printed as ±20 | 1 |
| Operating Temperature Range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | ℃ |  | 1 |
| Reverse Working Voltage | VRWM |  |  | 5 | V |  | 2 |
| Breakdown Voltage | VBR | 6 |  |  | V | IT = 1mA | 2 |
| Reverse Leakage Current | IR |  |  | 0.5 | µA | VRWM = 5V | 2 |
| Clamping Voltage | VC |  |  | 15 | V | IPP = 1A (8 x 20 s pulse) | 2 |
| Clamping Voltage | VC |  |  | 20 | V | IPP = 5A (8 x 20 s pulse) | 2 |
| Junction Capacitance | CJ |  | 0.8 |  | pF | V = 0V, f = 1MHz | 2 |

## CAD (KiCad official)

- Symbol: `LM-PLR0504F`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `lm-plr0504f-etched.step` / `lm-plr0504f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm-plr0504f.step` / `lm-plr0504f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603063397252407296) (3 pp, sha256 `9850e78bc29fc06a`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lm-plr0504f-datasheet.pdf)