component
UT3400G-AE3-R
Public Made by Adomby adom
UTC Unisonic Tech 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
markdownUT3400G-AE3-R
UTC Unisonic Tech · MOSFETs · SOT-23
UT3400G-AE3-R from UTC Unisonic Tech, 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, with gate-source voltage rated at ±12 V (VGS) and gate threshold voltage of 0.7 V to 1.4 V. |
| 2 | S | passive | Source terminal of the N-channel MOSFET, serving as the reference for VGS and the source-drain diode, with diode continuous forward current rated at 2.5 A. |
| 3 | D | passive | Drain terminal of the N-channel MOSFET, with drain-source voltage rated at 30 V and continuous drain current rated at 5.8 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| 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 | 2 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 2 | ||
| Continuous Drain Current | ID | 5.8 | A | 2 | |||
| Pulsed Drain Current | IDM | 30 | A | Repetitive rating, pulse width limited by max junction temperature (Note 2) | 2 | ||
| Power Dissipation | PD | 1.4 | W | 2 | |||
| Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 | ||
| Gate Threshold Voltage | VGS(TH) | 0.7 | 1.1 | 1.4 | V | VDS =VGS, ID =250µA | 2 |
| Drain to Source On-state Resistance | RDS(ON) | 22.8 | 28 | mΩ | VGS =10V, ID =5.8A | 2 | |
| Drain to Source On-state Resistance | RDS(ON) | 27.3 | 33 | mΩ | VGS =4.5V, ID =5A | 2 | |
| Drain to Source On-state Resistance | RDS(ON) | 43.3 | 52 | mΩ | VGS =2.5V, ID =4 A | 2 | |
| Drain-Source Diode Forward Voltage | VSD | 0.71 | 1 | V | IS=1A, VGS =0V | 2 | |
| Junction to Ambient (Note) | θJA | 85 | 125 | °C/W | Surface mounted on 1 in2 copper pad of FR4 board with 2oz. | 2 |
CAD (KiCad official)
- Symbol:
UT3400G-AE3-R - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ut3400g-ae3-r-etched.step/ut3400g-ae3-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ut3400g-ae3-r.step/ut3400g-ae3-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (3 pp, sha256
0896da03419da12f, retrieved 2026-10-18, 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).