# MSESD2CAN

**MSKSEMI** · ESD And Surge Protection (TVS/ESD) · SOT-23

MSESD2CAN from MSKSEMI, in a SOT-23. 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 | I/O1 | passive | Protected line 1 (TVS diode to common pin 3); working voltage 24V VRWM, 27V breakdown at 1mA, ±30kV IEC 61000-4-2 ESD. |
| 2 | I/O2 | passive | Protected line 2 (TVS diode to common pin 3); working voltage 24V VRWM, 27V breakdown at 1mA, ±30kV IEC 61000-4-2 ESD. |
| 3 | COMMON | passive | Common pin joining the two TVS diodes in the pin configuration diagram; the datasheet does not state a ground or supply role for it. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## 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 leakage current | IR |  |  | 0.2 | µA | @ VRWM | 2 |
| Clamping voltage | VC |  | 40 | 50 | V | VC @1A (header); (@A) column prints 8 | 2 |
| Breakdown voltage | VBR |  | 27 |  | V | @ IT = 1 mA | 2 |
| Diode capacitance | C |  | 25 |  | Pf |  | 2 |
| Working peak reverse voltage | VRWM |  | 24 |  | V |  | 2 |
| Peak pulse power (8/20 µs) | Ppp |  |  | 450 | W | 8/20µs | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | ESD per IEC 61000-4-2 (Air) | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | ESD per IEC 61000-4-2 (Contact) | 2 |
| Operating temperature range | TJ | -55 |  | 125 | °C |  | 2 |
| Storage temperature range | TSTJ | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `MSESD2CAN`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `msesd2can-etched.step` / `msesd2can-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `msesd2can.step` / `msesd2can.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590181829346164736) (5 pp, sha256 `fe8873286ebe046c`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/msesd2can-datasheet.pdf)