component
AO3403A
Public Made by Adomby adom
UMW 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
markdownAO3403A
UMW · MOSFETs · SOT-23
AO3403A from UMW, 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 terminal; the datasheet rates the gate-source voltage at VGS = ±12 V. |
| 2 | S | passive | SOURCE terminal; the device is rated VDS = -30 V with continuous drain current ID = -2.6 A at TA = 25°C. |
| 3 | D | passive | DRAIN terminal; the pulsed drain current is rated IDM = -13 A and the absolute maximum drain-source voltage is -30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 | -100 | 100 | nA | VDS=0V, VGS=±12V | 2 | |
| Gate Threshold Voltage | VGS(th) | -0.6 | V | VDS=VGS, ID=-250μA | 2 | ||
| On state drain current | ID(ON) | -13 | A | VGS=-10V, VDS=-5V | 2 | ||
| Static Drain-Source On-Resistance | RDS(ON) | 88 | mΩ | VGS=-10V, ID=-2.6A | 2 | ||
| Static Drain-Source On-Resistance | RDS(ON) | 103 | mΩ | VGS=-4.5V, ID=-2A | 2 | ||
| Diode Forward Voltage | VSD | -0.78 | -1 | V | IS=-1A, VGS=0V | 2 | |
| Zero Gate Voltage Drain Current | IDSS | -1 | µA | VDS=-30V, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -5 | µA | VDS=-30V, VGS=0V, TJ=55°C | 2 | ||
| Drain-Source Voltage | VDS | -30 | V | TA=25°C unless otherwise noted | 1 | ||
| Gate-Source Voltage | VGS | -12 | 12 | V | TA=25°C unless otherwise noted | 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 | Repetitive rating, pulse width limited by junction temperature TJ(MAX)=150°C | 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 (steady state, per figure note) | RθJA | 125 | °C/W | Steady-State; RθJA=125°C/W as printed in figure 11 note; measured on 1in² FR-4, 2oz Cu, still air, TA=25°C | 5 |
CAD (KiCad official)
- Symbol:
AO3403A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ao3403a-etched.step/ao3403a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ao3403a.step/ao3403a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (9 pp, sha256
785937a53e4a6182, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).