component
AO3402A
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
markdownAO3402A
UMW · MOSFETs · SOT-23
AO3402A 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 of the N-channel MOSFET; gate-source voltage is rated at ±12 V (VGS), and the device is specified for operation with gate voltage as low as 2.5 V. |
| 2 | S | passive | SOURCE terminal of the N-channel MOSFET, the return path for the drain current (ID continuous 4 A, pulsed 15 A). |
| 3 | D | passive | DRAIN terminal of the N-channel MOSFET; drain-source voltage is rated at 30 V (VDS) with continuous drain current of 4 A. |
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 voltage | VDS | 30 | V | 1 | |||
| Gate-source voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous drain current | ID | 4 | A | 1 | |||
| Pulsed drain current | IDM | 15 | A | Repetitive rating, pulse width limited by junction temperature (note 1) | 1 | ||
| Power dissipation | PD | 0.35 | W | TA=25°C | 1 | ||
| Junction temperature | TJ | 150 | °C | 1 | |||
| Storage temperature | TSTG | -55 | 150 | °C | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 125 | °C/W | Surface mounted on FR4 board, t≤10s (note 2) | 1 | ||
| Drain-source breakdown voltage | V(BR)DSS | 30 | V | VGS=0V, ID=250µA | 2 | ||
| Zero gate voltage drain current | IDSS | 1 | µA | VDS=24V, VGS=0V | 2 | ||
| Gate-body leakage current | IGSS | -100 | 100 | nA | VGS=±12V, VDS=0V | 2 | |
| Gate threshold voltage | VGS(th) | 0.8 | 1.4 | V | VDS=VGS, ID=250μA | 2 | |
| Drain-source on-resistance | RDS(ON) | 52 | mΩ | VGS=10V, ID=4A | 2 | ||
| Drain-source on-resistance | RDS(ON) | 65 | mΩ | VGS=4.5V, ID=3A | 2 | ||
| Drain-source on-resistance | RDS(ON) | 85 | mΩ | VGS=2.5V, ID=2A | 2 | ||
| Diode forward voltage | VSD | 1 | V | IS=1A, VGS=0V | 2 |
CAD (KiCad official)
- Symbol:
AO3402A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ao3402a-etched.step/ao3402a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ao3402a.step/ao3402a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (7 pp, sha256
353a34342a0ef4bc, 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).