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AO3403
Public Made by Adomby adom
Alpha Omega Semicon MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAO3403
Alpha Omega Semicon · MOSFETs · SOT-23
AO3403 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; gate-source voltage is limited to ±12V, with a threshold of -0.6V min, -1V typ and -1.4V max at ID=-250µA. |
| 2 | S | passive | Source of the P-channel MOSFET; drain-source voltage is rated -30V and continuous drain current -2.6A at TA=25°C. |
| 3 | D | passive | Drain of the P-channel MOSFET; drain-source voltage is rated -30V, continuous current -2.6A and pulsed current -13A. |
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 Voltage | VDS | -30 | V | 1 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | -2.6 | A | TA=25°C | 1 | ||
| Continuous Drain Current | ID | -2.2 | A | TA=70°C | 1 | ||
| Pulsed Drain Current | IDM | -13 | A | 1 | |||
| Power Dissipation | PD | 1.4 | W | TA=25°C | 1 | ||
| Power Dissipation | PD | 0.9 | W | TA=70°C | 1 | ||
| Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Maximum Junction-to-Ambient thermal resistance (steady-state) | RθJA | 125 | °C/W | Figure 11 normalization note: RθJA=125°C/W | 4 | ||
| Drain-Source Breakdown Voltage | BVDSS | -30 | V | ID=-250µA, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -1 | µA | VDS=-30V, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -5 | µA | TJ=55°C, VDS=-30V, VGS=0V | 2 | ||
| Gate-Body leakage current | IGSS | -100 | 100 | nA | VDS=0V, VGS=±12V | 2 | |
| Gate Threshold Voltage | VGS(th) | -0.6 | -1 | -1.4 | V | VDS=VGS, ID=-250µA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) | 88 | 115 | mΩ | VGS=-10V, ID=-2.6A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 143 | 200 | mΩ | VGS=-10V, ID=-2.6A, TJ=125°C | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 103 | 150 | mΩ | VGS=-4.5V, ID=-2A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 139 | 200 | mΩ | VGS=-2.5V, ID=-1A | 2 | |
| Diode Forward Voltage | VSD | -0.78 | -1 | V | IS=-1A, VGS=0V | 2 | |
| Maximum Body-Diode Continuous Current | IS | -1.5 | A | 2 | |||
| Input Capacitance | Ciss | 260 | 315 | pF | VGS=0V, VDS=-15V, f=1MHz | 2 | |
| Gate resistance | Rg | 4 | 8 | 12 | Ω | VGS=0V, VDS=0V, f=1MHz | 2 |
| Total Gate Charge (10V) | Qg | 5.9 | 7.2 | nC | VGS=-10V, VDS=-15V, ID=-2.6A | 2 | |
| Total Gate Charge (4.5V) | Qg | 2.8 | 3.5 | nC | 2 | ||
| Body Diode Reverse Recovery Time | trr | 11.5 | 15 | ns | IF=-2.6A, dI/dt=100A/µs | 2 |
CAD (KiCad official)
- Symbol:
AO3403 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ao3403-etched.step/ao3403-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ao3403.step/ao3403.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Alpha Omega Semicon datasheet (5 pp, sha256
e56d956986d4a365, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).