# SRV05-4HTG-MS

**MSKSEMI** · ESD And Surge Protection (TVS/ESD) · SOT-23-6

SRV05-4HTG-MS from MSKSEMI, in a SOT-23-6. 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 data line I/O 1 with steering diodes to Vcc and GND, 0.3pF typ. I/O to I/O capacitance. |
| 2 | GND | power_in | Ground reference for the steering diodes and the TVS diode. |
| 3 | I/O3 | passive | Protected data line I/O 3 with steering diodes to Vcc and GND, rated for IEC 61000-4-2 ±12kV contact and ±15kV air. |
| 4 | I/O4 | passive | Protected data line I/O 4 with steering diodes to Vcc and GND, rated for 5A (8/20μs) peak pulse current. |
| 5 | Vcc | power_in | Positive rail of the steering diodes, with the avalanche TVS diode to GND and a 5.0V reverse stand-off voltage. |
| 6 | I/O6 | passive | Protected data line I/O 6 with steering diodes to Vcc and GND, with 16V max clamping at 5.0A (8/20μs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-23-6 |
| 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 |  |  | 150 | W | tp = 8/20μs | 3 |
| Peak Pulse Current | Ipp |  |  | 5 | A | tp = 8/20μs (note1) | 3 |
| ESD per IEC 61000-4-2 (Air) | VESD |  |  | 15 | kV | IEC 61000-4-2 (Air) | 3 |
| ESD per IEC 61000-4-2 (Contact) | VESD |  |  | 12 | kV | IEC 61000-4-2 (Contact) | 3 |
| Junction Temperature | TJ | -55 |  | 125 | ℃ |  | 3 |
| Storage Temperature | Tstg | -55 |  | 125 | ℃ |  | 3 |
| Lead Soldering Temperature | TL |  |  | 260 | ℃ | 10 seconds | 3 |
| Reverse Stand-Off Voltage | VRWM |  |  | 5 | V |  | 3 |
| Reverse Breakdown Voltage | VBR | 6 |  |  | V | IT=1mA | 3 |
| Reverse Leakage Current | IR |  |  | 1 | uA | VRWM=5V, T=25℃ | 3 |
| Peak Pulse Current | IPP |  |  | 5 | A | tp =8/20μs | 3 |
| Clamping Voltage | VC |  |  | 16 | V | IPP=5.0A, tp=8/20μs | 3 |
| Junction Capacitance IO to IO | Cj |  | 0.3 | 0.45 | pF | VR = 0V, f = 1MHz | 3 |
| Junction Capacitance IO to GND | Cj |  | 0.6 | 0.9 | pF | VR = 0V, f = 1MHz | 3 |

## CAD (KiCad official)

- Symbol: `SRV05-4HTG-MS`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `srv05-4htg-ms-etched.step` / `srv05-4htg-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `srv05-4htg-ms.step` / `srv05-4htg-ms.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/8590233762320711680) (6 pp, sha256 `67aba7ebda661a3b`, retrieved 2026-10-17, 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/srv05-4htg-ms-datasheet.pdf)