# PTVSHC3D4V5B-MS

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

PTVSHC3D4V5B-MS from MSKSEMI, 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 | Pin1 | passive | Pin1 is one terminal of the TVS line protected by the device, with reverse working voltage VRWM of 4.5 V and breakdown voltage VBR of 4.6 V min to 6.1 V max at It = 1 mA, measured Pin1 to Pin2. |
| 2 | Pin2 | passive | Pin2 is the other terminal of the protected line, forming the Pin1 to Pin2 path for the stated clamping voltages (7.5 V to 16 V across 20 A to 130 A at tP = 8/20 µs) and the 2 µA maximum reverse leakage at VRWM = 4.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (Pin1 to Pin2) | VBR | 4.6 | 5.3 | 6.1 | V | It =1mA | 3 |
| Reverse Leakage Current (Pin1 to Pin2) | IR |  |  | 2 | μA | VRWM =4.5V | 3 |
| Clamping Voltage (Pin1 to Pin2) | VC |  | 7.5 | 8.5 | V | IPP=20A tP = 8/20μs | 3 |
| Clamping Voltage (Pin1 to Pin2) | VC |  | 8.8 | 10 | V | IPP=45A tP = 8/20μs | 3 |
| Clamping Voltage (Pin1 to Pin2) | VC |  | 11 | 12.5 | V | IPP=90A tP = 8/20μs | 3 |
| Clamping Voltage (Pin1 to Pin2) | VC |  | 14 | 16 | V | IPP=130A tP = 8/20μs | 3 |
| Junction Capacitance | Cj |  | 320 | 360 | pF | VR=0V f = 1MHz | 3 |
| Reverse Working Voltage | VRWM |  |  | 4.5 | V |  | 3 |
| Peak Pulse Power | Ppp |  |  | 2000 | W | tP = 8/20μS | 3 |
| Total Device Dissipation | PD |  |  | 500 | mW | FR-5 Board | 3 |
| Lead Soldering Temperature | TL |  |  | 260 | ℃ | 10 sec | 3 |
| Operating Temperature | TJ | -55 |  | 150 | ℃ |  | 3 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 3 |

## 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: `PTVSHC3D4V5B-MS`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `ptvshc3d4v5b-ms-etched.step` / `ptvshc3d4v5b-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ptvshc3d4v5b-ms.step` / `ptvshc3d4v5b-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](docs/ptvshc3d4v5b-ms-datasheet.pdf) (6 pp, sha256 `904d18a5c888e59a`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/ptvshc3d4v5b-ms-datasheet.pdf)