# SI5618-TP

**MCC(Micro Commercial Components)** · MOSFETs · SOT-23

SI5618-TP from MCC(Micro Commercial Components), in a SOT-23. 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 | GATE | input | Gate control terminal; the datasheet limits gate-source voltage to ±20 V. |
| 2 | SOURCE | passive | Source terminal; the datasheet gives no pin-specific limit, so the device ratings apply (VDS -60 V, VGS ±20 V). |
| 3 | DRAIN | passive | Drain terminal; the drain-source voltage is rated -60 V and continuous drain current is -1.9 A when surface mounted on a 1 in² pad (t≤10 s). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS | -60 |  |  | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current (TA=25°C) | ID | -1.9 |  |  | A | TA=25°C; Note 2: surface mounted on 1 in² pad, t≤10 sec | 1 |
| Continuous Drain Current (TA=100°C) | ID | -1.2 |  |  | A | TA=100°C; Note 2: surface mounted on 1 in² pad, t≤10 sec | 1 |
| Pulsed Drain Current | IDM | -7.6 |  |  | A | Note 3: pulse width ≤300µs, duty cycle ≤2% | 1 |
| Total Power Dissipation | PD | 0.83 |  |  | W |  | 1 |
| Operating Junction Temperature Range |  | -55 |  | 150 | °C |  | 1 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance, Junction to Ambient |  |  | 150 |  | °C/W | Junction to ambient | 1 |
| Drain-Source Breakdown Voltage | V(BR)DSS | -60 |  |  | V | VGS=0V, ID=-250µA | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±20V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -1 | µA | VDS=-48V, VGS=0V | 2 |
| Gate-Threshold Voltage | VGS(th) | -1 | -2 | -3 | V | VDS=VGS, ID=-250µA | 2 |
| Drain-Source On-Resistance (VGS=-10V) | RDS(on) |  | 125 | 150 | mΩ | VGS=-10V, ID=-1.5A | 2 |
| Drain-Source On-Resistance (VGS=-4.5V) | RDS(on) |  | 165 | 200 | mΩ | VGS=-4.5V, ID=-1A | 2 |
| Diode Forward Voltage | VSD |  | -0.8 | -1.4 | V | VGS=0V, IS=-1A | 2 |
| Continuous Body Diode Current | IS |  |  | -1.9 | A |  | 2 |

## CAD (KiCad official)

- Symbol: `SI5618-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `si5618-tp-etched.step` / `si5618-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `si5618-tp.step` / `si5618-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600578010424614912) (4 pp, sha256 `9e803c609dd22b8b`, retrieved 2026-10-19, 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/si5618-tp-datasheet.pdf)