# SE2305

**SINO IC** · MOSFETs · SOT-23

SE2305 from SINO IC, 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 | G | input | Gate; gate-source voltage limited to ±12 V, threshold VGS(th) -0.4 to -1 V at ID=-250μA. |
| 2 | S | passive | Source of the P-channel MOSFET; drain-source voltage VDS is rated -20 V. |
| 3 | D | passive | Drain; continuous drain current -4.7 A, pulsed -20 A, VDS -20 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SINO IC |
| 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 Breakdown Voltage | BVDSS | -20 |  |  | V | ID=-250μA, VGS=0 V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=-16 V, VGS=0 V | 2 |
| Gate-Body leakage current | IGSS | -100 |  | 100 | μA | VDS=0 V, VGS=±8 V | 2 |
| Gate Threshold Voltage | VGS(th) | -0.4 |  | -1 | V | VDS=VGS, ID=-250μA | 2 |
| Static Drain-Source On-Resistance (VGS=-1.8V) | RDS(ON) |  | 42 | 52 | mΩ | VGS=-1.8V, ID=-2A | 2 |
| Static Drain-Source On-Resistance (VGS=-2.5V) | RDS(ON) |  | 35 | 40 | mΩ | VGS=-2.50V, ID=-4.1A | 2 |
| Static Drain-Source On-Resistance (VGS=-4.5V) | RDS(ON) |  | 30 | 35 | mΩ | VGS=-4.5V, ID=-4.7A | 2 |
| Turn-On Delay Time | td(on) |  | 25 | 50 | ns | VGS=-10V, VGEN=-4.5V, RL=10Ω, RG=6Ω, ID=-1A | 2 |
| Turn-Off Delay Time | td(off) |  | 71 | 142 | ns | VGS=-10V, VGEN=-4.5V, RL=10Ω, RG=6Ω, ID=-1A | 2 |
| Drain-Source Diode Forward Voltage | VSD |  |  | -1.2 | V | VGS=0V, IS=-1 | 2 |
| Input Capacitance | Ciss |  | 1020 |  | pF |  | 2 |
| Output Capacitance | Coss |  | 191 |  | pF |  | 2 |
| Reverse Transfer Capacitance | Crss |  | 140 |  | pF | VGS=0V, VDS=-10V, f=1MHz | 2 |
| Drain-Source Voltage | VDS | -20 |  |  | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Drain Current Continuous (Note 1) | ID | -4.7 |  |  | A | Note 1, continuous | 1 |
| Drain Current Pulsed |  | -20 |  |  | A | Pulsed | 1 |
| Total Power Dissipation | PD |  |  | 1.25 | W | @TA=25°C | 1 |
| Total Power Dissipation | PD |  |  | 0.8 | W | @TA=75°C | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `SE2305`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `se2305-etched.step` / `se2305-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `se2305.step` / `se2305.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SINO IC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884215891312640) (6 pp, sha256 `ceb2495c0379f7a6`, retrieved 2026-10-19, 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/se2305-datasheet.pdf)