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DMG3420UQ-7

Public Made by Adom

by adom

Diodes Incorporated MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DMG3420UQ-7

Diodes Incorporated · MOSFETs · SOT-23

DMG3420UQ-7 from Diodes Incorporated, 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 is rated at ±12 V maximum, with a gate threshold of 0.5 V min to 1.2 V max at 250 µA.
2 S passive Source; continuous drain current is 5.47 A at TA = +25°C.
3 D passive Drain; drain-source voltage is rated at 20 V maximum, with 29 mΩ max RDS(ON) at VGS = 10 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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 20 V VGS = 0V, ID = 250μA 2
Zero Gate Voltage Drain Current IDSS 1 µA TJ = +25°C, VDS = 20V, VGS = 0V 2
Gate-Source Leakage IGSS -100 100 nA VGS = ±12V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) 0.5 0.95 1.2 V VDS = VGS, ID = 250μA 2
Static Drain-Source On-Resistance at VGS = 10V RDS(ON) 21 29 mΩ VGS = 10V, ID = 6A 2
Static Drain-Source On-Resistance at VGS = 4.5V RDS(ON) 25 35 mΩ VGS = 4.5V, ID = 5A 2
Static Drain-Source On-Resistance at VGS = 2.5V RDS(ON) 34 48 mΩ VGS = 2.5V, ID = 4A 2
Static Drain-Source On-Resistance at VGS = 1.8V RDS(ON) 65 91 mΩ VGS = 1.8V, ID = 2A 2
Diode Forward Voltage VSD 0.75 1 V VGS = 0V, IS = 1A 2
Drain-Source Voltage VDSS 20 V 2
Gate-Source Voltage VGSS -12 12 V 2
Continuous Drain Current, steady state ID 5.47 A Steady state, TA = +25°C 2
Continuous Drain Current, steady state ID 3.43 A Steady state, TA = +85°C 2
Pulsed Drain Current IDM 20 A 2
Power Dissipation PD 0.74 W Note 6 2
Thermal Resistance, Junction to Ambient RθJA 167 °C/W @TA = +25°C, Note 6 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts Copper tin  Terminals: Finish  Matte Tin Annealed over Copper 1

CAD (KiCad official)

  • Symbol: DMG3420UQ-7
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dmg3420uq-7-etched.step / dmg3420uq-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dmg3420uq-7.step / dmg3420uq-7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 65a3f4a334b3893f, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF