component
UT2955G-AA3-R
Public Made by Adomby adom
UTC Unisonic Tech MOSFETs, SOT-223. 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
markdownUT2955G-AA3-R
UTC Unisonic Tech · MOSFETs · SOT-223
UT2955G-AA3-R from UTC Unisonic Tech, in a SOT-223. 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 of the UT2955 P-channel MOSFET; the datasheet limits gate-source voltage VGSS to ±20 V. |
| 2 | D | passive | Drain of the UT2955; the datasheet rates drain-source voltage VDSS at -60 V and continuous drain current ID at -1.7 A. |
| 3 | S | passive | Source of the UT2955; the datasheet gives it as the reference for the gate-source voltage rating (VGSS ±20 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-223 |
| 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 | -60 | V | VGS=0V, ID=-250µA | 2 | ||
| Drain-Source Leakage Current | IDSS | -1 | µA | VDS=-60V, VGS=0V | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VDS=0V, VGS=±20V | 2 | |
| Gate Threshold Voltage | VGS(TH) | -2 | -4 | V | VDS=VGS, ID=-1.0mA | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 145 | 170 | mΩ | VGS=-10V, ID=-0.75A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 150 | 180 | mΩ | VGS=-10V, ID=-1.5A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 154 | 185 | mΩ | VGS=-10V, ID=-2.4A | 2 | |
| Diode Forward Voltage | VSD | -1.1 | -1.3 | V | IS=1.5A, VGS=0V | 2 | |
| Drain-Source Voltage | VDSS | -60 | V | 2 | |||
| Gate-Source Voltage | VGSS | -20 | 20 | V | 2 | ||
| Continuous Drain Current | ID | -1.7 | A | 2 | |||
| Pulsed Drain Current | IDM | -10.4 | A | Pulse width limited by TJ(MAX) | 2 | ||
| Single Pulsed Avalanche Energy | EAS | 225 | mJ | VDD=15V, VG=10V, IPK=6.7A, L=10mH, RG=25Ω | 2 | ||
| Power Dissipation (SOT-223) | PD | 1 | W | 2 | |||
| Junction Temperature | TJ | 175 | °C | 2 | |||
| Storage Temperature | TSTG | -55 | 175 | °C | 2 | ||
| Junction to Ambient (SOT-223) | θJA | 150 | °C/W | 2 | |||
| Junction to Case (SOT-223) | θJC | 14 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
UT2955G-AA3-R - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
ut2955g-aa3-r-etched.step/ut2955g-aa3-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ut2955g-aa3-r.step/ut2955g-aa3-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (4 pp, sha256
a3922e7ff40dea24, 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).