# S2GHM4G

**Taiwan Semiconductor** · Diodes - General Purpose · DO-214AA

S2GHM4G from Taiwan Semiconductor, in a DO-214AA. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Taiwan Semiconductor |
| Package | DO-214AA |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage | VRRM |  |  | 400 | V |  | 1 |
| Reverse voltage, total rms value | VR(RMS) |  |  | 280 | V |  | 1 |
| Forward current | IF |  |  | 2 | A |  | 1 |
| Surge peak forward current | IFSM |  |  | 50 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Junction temperature | TJ | -55 |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Forward voltage | VF |  |  | 1.15 | V | IF = 2A, TJ = 25°C | 2 |
| Reverse current @ rated VR | IR |  |  | 1 | µA | @ rated VR, TJ = 25°C | 2 |
| Reverse current @ rated VR | IR |  |  | 125 | µA | @ rated VR, TJ = 125°C | 2 |
| Junction-to-lead thermal resistance | RӨJL |  | 16 |  | °C/W |  | 2 |
| Junction-to-ambient thermal resistance | RӨJA |  | 53 |  | °C/W |  | 2 |
| Junction capacitance | CJ |  | 30 |  | pF | 1MHz, VR = 4.0V | 2 |
| Reverse recovery time | trr |  | 1500 |  | ns | IF = 0.5A, IR = 1.0A, Irr = 0.25A | 2 |

## CAD (KiCad official)

- Symbol: `S2GHM4G`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA (KiCad packages3D, STEP)
- 3D model files: `s2ghm4g-etched.step` / `s2ghm4g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s2ghm4g.step` / `s2ghm4g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Taiwan Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234503575863296) (6 pp, sha256 `9a12006a3d9a300a`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/s2ghm4g-datasheet.pdf)