# AO3480C

**Alpha Omega Semicon** · MOSFETs · SOT-23

AO3480C from Alpha Omega Semicon, 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; ESD-protected gate, absolute maximum VGS ±20V, threshold 1.3V min to 2.3V max at ID=250mA. |
| 2 | S | passive | Source; body-diode continuous current up to 2A, continuous drain current 6.2A at TA=25°C. |
| 3 | D | passive | Drain; drain-source voltage 30V maximum, continuous current 6.2A at TA=25°C and pulsed 40A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Alpha Omega Semicon |
| 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 | 30 |  |  | V | ID=250μA, VGS=0V | 2 |
| Gate-Body leakage current | IGSS | -10 |  | 10 | μA | VDS=0V, VGS=±20V | 2 |
| Gate Threshold Voltage | VGS(th) | 1.3 | 1.8 | 2.3 | V | VDS=VGS, ID=250mA | 2 |
| Static Drain-Source On-Resistance (TJ=25°C) | RDS(ON) |  | 16 | 20 | mΩ | VGS=10V, ID=6.2A | 2 |
| Static Drain-Source On-Resistance (TJ=125°C) | RDS(ON) |  | 24 | 30 | mΩ | TJ=125°C, VGS=10V, ID=6.2A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 20 | 26 | mΩ | VGS=4.5V, ID=5.5A | 2 |
| Diode Forward Voltage | VSD |  | 0.7 | 1 | V | IS=1A, VGS=0V | 2 |
| Maximum Body-Diode Continuous Current | IS |  |  | 2 | A |  | 2 |
| Gate resistance | Rg | 1.2 | 2.4 | 3.6 | Ω | f=1MHz | 2 |
| Total Gate Charge (10V) | Qg (10V) |  | 12 | 20 | nC | VGS=10V, VDS=15V, ID=6.2A | 2 |
| Total Gate Charge (4.5V) | Qg (4.5V) |  | 6 | 12 | nC |  | 2 |
| Drain-Source Voltage | VDS |  |  | 30 | V | TA=25°C unless otherwise noted | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V | TA=25°C unless otherwise noted | 1 |
| Continuous Drain Current | ID |  |  | 6.2 | A | TA=25°C | 1 |
| Continuous Drain Current | ID |  |  | 4.8 | A | TA=70°C | 1 |
| Pulsed Drain Current | IDM |  |  | 40 | A |  | 1 |
| Power Dissipation | PD |  |  | 1.3 | W | TA=25°C | 1 |
| Power Dissipation | PD |  |  | 0.8 | W | TA=70°C | 1 |
| Junction and Storage Temperature Range | TJ, TSTG | -55 |  | 150 | °C |  | 1 |
| Maximum Junction-to-Ambient | RθJA |  |  | 63 | °C/W | t ≤ 10s | 1 |
| Maximum Junction-to-Ambient (steady state) | RθJA |  |  | 125 | °C/W | Steady-State | 1 |
| Maximum Junction-to-Lead | RθJL |  |  | 80 | °C/W | Steady-State | 1 |

## CAD (KiCad official)

- Symbol: `AO3480C`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ao3480c-etched.step` / `ao3480c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao3480c.step` / `ao3480c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Alpha Omega Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905258680520704) (5 pp, sha256 `28f7ea0d8ae5d2e5`, 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/ao3480c-datasheet.pdf)