# LESD3Z5.0CMT1G

**LRC** · ESD And Surge Protection (TVS/ESD) · SOD-323

LESD3Z5.0CMT1G from LRC, in a SOD-323. 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 | CATHODE | passive | Cathode of the unidirectional TVS diode, connected to the protected signal line (VRWM 5.0 V max, VBR 5.6 V min at 1.0 mA). |
| 2 | ANODE | passive | Anode of the TVS diode, connected to ground to divert ESD/transient current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Working Peak Reverse Voltage | VRWM |  |  | 5 | V |  | 2 |
| Maximum Reverse Leakage Current | IR |  |  | 1 | uA | @ VRWM | 2 |
| Breakdown Voltage | VBR | 5.6 |  |  | V | @ IT = 1.0 mA | 2 |
| Clamping Voltage | VC |  | 11.6 |  | V | @ IPP=5 A, surge waveform per Figure 1 | 2 |
| Clamping Voltage at Max IPP | VC |  |  | 18.6 | V | @ Max IPP, surge waveform per Figure 1 | 2 |
| Maximum Reverse Peak Pulse Current | IPP |  |  | 9.4 | A | Surge current waveform per Figure 1 | 2 |
| Peak Pulse Power | PPK |  |  | 174 | W | Surge current waveform per Figure 1 | 2 |
| Forward Voltage | VF |  | 0.9 |  | V | IF = 10mA | 2 |
| Capacitance | C |  | 25 |  | pF |  | 2 |
| Peak Pulse Power | PPP |  |  | 200 | W | tp = 8/20 μs, Tamb=25°C | 1 |
| Maximum lead temperature for soldering | TL |  |  | 260 | °C | during 10s | 1 |
| Storage Temperature Range | Tstg | -55 |  | 155 | °C |  | 1 |
| Operating Temperature Range | Top | -40 |  | 125 | °C |  | 1 |
| Maximum junction temperature | Tj |  |  | 150 | °C |  | 1 |
| IEC61000-4-2 ESD air discharge |  | -15 |  | 15 | KV | IEC61000-4-2 air discharge | 1 |
| IEC61000-4-2 ESD contact discharge |  | -8 |  | 8 | KV | IEC61000-4-2 contact discharge | 1 |
| IEC61000-4-4 EFT |  |  |  | 40 | A | IEC61000-4-4 | 1 |
| ESD Voltage Per Human Body Model |  |  |  | 16 | KV | Human Body Model | 1 |

## CAD (KiCad official)

- Symbol: `LESD3Z5.0CMT1G`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `lesd3z5-0cmt1g-etched.step` / `lesd3z5-0cmt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lesd3z5-0cmt1g.step` / `lesd3z5-0cmt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588880622060785664) (4 pp, sha256 `0b86a928c4008caa`, 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/lesd3z5-0cmt1g-datasheet.pdf)