# MSESD5Z5CL

**MSKSEMI** · ESD Protection Devices · SOD-523

MSESD5Z5CL from MSKSEMI, in a SOD-523. 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 | Pin1 | passive | Bidirectional TVS line terminal (Pin 1) protecting one power or I/O port, 5V peak reverse working voltage, 80W peak pulse power (8/20μs), ±30kV IEC 61000-4-2 contact/air. |
| 2 | Pin2 | passive | Bidirectional TVS line terminal (Pin 2) protecting one power or I/O port, 5V peak reverse working voltage, 80W peak pulse power (8/20μs), ±30kV IEC 61000-4-2 contact/air. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level 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 | 5.8 |  | 7.8 | V | IT = 1mA | 2 |
| Reverse Leakage Current | IR |  |  | 1 | μA | VRWM = 5V T=25℃ | 2 |
| Clamping Voltage (IEC61000-4-5) | VC |  | 8 | 10 | V | IPP=10A | 2 |
| Peak Reverse Working Voltage | VRWM |  |  | 5 | V |  | 2 |
| Peak Pulse Power | Ppp |  |  | 80 | W | tp=8/20μs | 2 |
| Operating Temperature | TJ | -55 |  | 150 | ℃ |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Clamping Voltage (TLP) | VC |  | 9 |  | V | TLP = 16A, tp = 100ns | 2 |
| Dynamic resistance | RDYN |  | 0.15 |  | Ω |  | 2 |
| Junction Capacitance | CJ |  | 33 |  | pF | VR=0V f = 1MHz | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | Lead finish:100% matte Sn(Tin) Mounting position: Any | 2 |

## CAD (KiCad official)

- Symbol: `MSESD5Z5CL`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `msesd5z5cl-etched.step` / `msesd5z5cl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `msesd5z5cl.step` / `msesd5z5cl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](docs/msesd5z5cl-datasheet.pdf) (4 pp, sha256 `009cbf4569d09fdf`, retrieved 2026-10-23, 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/msesd5z5cl-datasheet.pdf)