# P0300SC

**SEMIWARE** · Thyristor Surge Suppressors (TSS) · DO-214AA

P0300SC from SEMIWARE, 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 | T1 | passive | Terminal 1 of the bidirectional thyristor surge suppressor, with VDRM 25V min, IDRM 5uA max and VS 40V max for P0300SC. |
| 2 | T2 | passive | Terminal 2 of the bidirectional thyristor surge suppressor, interchangeable with terminal 1, with IPP 500A (2x10us) and ITSM 30A (60Hz) series ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SEMIWARE |
| Package | DO-214AA |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak off-state voltage | VDRM | 25 |  |  | V | Table header: @ T=25 °C ambient | 1 |
| Off-state current | IDRM |  |  | 5 | uA | Table header: @ T=25 °C ambient | 1 |
| VS | VS |  |  | 40 | V | Vs is measured at 100KV/S (as printed); @ T=25 °C ambient | 1 |
| IS | IS |  |  | 800 | mA | Table header: @ T=25 °C ambient | 1 |
| VT | VT |  |  | 2.2 | V | @ T=25 °C ambient | 1 |
| IH | IH | 50 |  |  | mA | @ T=25 °C ambient | 1 |
| Off-state capacitance | CO |  |  | 80 | pF | V=2V, V=1V, F=1MHz DC RMS (as printed); @ T=25 °C ambient | 1 |
| Peak pulse current, 2x10us | IPP |  |  | 500 | A | Surge rating, waveform 2x10us; series-wide value | 1 |
| Peak pulse current, 8x20us | IPP |  |  | 400 | A | Surge rating, waveform 8x20us; series-wide value | 1 |
| Peak pulse voltage, 10x700us | VPP |  |  | 6000 | V | Surge rating, waveform 10x700us; series-wide value | 1 |
| Peak pulse current, 10x560us | IPP |  |  | 150 | A | Surge rating, waveform 10x560us; series-wide value | 1 |
| Peak pulse current, 10x1000us | IPP |  |  | 100 | A | Surge rating, waveform 10x1000us; series-wide value | 1 |
| On-state surge current, 60Hz | ITSM |  |  | 30 | A | 60Hz; series-wide value | 1 |
| Rate of rise of on-state current | di/dt |  |  | 500 | A/us | Series-wide value | 1 |
| Operating junction temperature | TJ | -40 |  | 150 | ℃ | Operating junction temperature range | 2 |
| Storage temperature range | TS | -40 |  | 150 | ℃ | Storage temperature range | 2 |
| Junction to ambient thermal resistance | RθJA |  | 90 |  | ℃/W | Junction to ambient on printed circuit board | 2 |

## CAD (KiCad official)

- Symbol: `P0300SC`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA (KiCad packages3D, STEP)
- 3D model files: `p0300sc-etched.step` / `p0300sc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `p0300sc.step` / `p0300sc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SEMIWARE datasheet](docs/p0300sc-datasheet.pdf) (5 pp, sha256 `8e97753fd9f8e980`, retrieved 2026-10-21, 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/p0300sc-datasheet.pdf)