component
DO4085A
Public Made by Adomby adom
DOINGTER MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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DO4085A
DOINGTER · MOSFETs · SOT-23
DO4085A from DOINGTER, 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 limited to ±20 V, with threshold VGS(th) of -1.2 V min to -2.5 V max at 250 µA. |
| 2 | D | passive | Drain; drain-source voltage rated -40 V with continuous drain current of -5 A at TA=25°C and pulsed -20 A. |
| 3 | S | passive | Source of the P-channel MOSFET; body diode continuous current IS is -4.2 A max. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOINGTER |
| 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 | -40 | V | VGS=0V,ID=250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -1 | μA | VGS=0V, VDS=-40V | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±20V, VDS=0A | 2 | |
| Gate-Source Threshold Voltage | VGS(th) | -1.2 | -1.6 | -2.5 | V | VGS=VDS, ID=250μA | 2 |
| Drain-Source On Resistance | RDS(ON) | 60 | 78 | mΩ | VGS=-10V,ID=-3A | 2 | |
| Drain-Source On Resistance | RDS(ON) | 71 | 100 | mΩ | VGS=-4.5V,ID=-2A | 2 | |
| Diode Forward Voltage | VSD | -1.2 | V | VGS=0V, ISD=-5A | 2 | ||
| Continuous Drain Current (diode) | IS | -4.2 | A | VD=VG=0V | 2 | ||
| Pulsed Drain Current (diode) | ISM | -16.6 | A | 2 | |||
| Drain-Source Voltage | VDS | -40 | V | 1 | |||
| Gate-Source Voltage | VGS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | -5 | A | TA=25℃ | 1 | ||
| Continuous Drain Current | ID | -2.5 | A | TA=100℃ | 1 | ||
| Pulsed Drain Current | IDM | -20 | A | 1 | |||
| Power Dissipation | PD | 1.5 | W | 1 | |||
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 82 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
DO4085A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
do4085a-etched.step/do4085a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);do4085a.step/do4085a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOINGTER datasheet (7 pp, sha256
388ec176904657d7, retrieved 2026-10-17, 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).