DO3402A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

DO3402A product

DO3402A

FETs

N-channel MOSFET30 V4 ASOT-23Low RDS(on)

DO3402A is a 30 V N-channel SOT-23 MOSFET rated for 4 A continuous drain current. It is specified with 42 mΩ maximum RDS(on) at VGS = 10 V and 4 A.

Best for

  • Low-voltage load switching
  • Compact low-side MOSFET switching
  • Gate drives of 4.5 V or 10 V

Avoid if

  • Drain voltage can exceed 30 V including transients
  • Thermal design cannot support SOT-23 dissipation
  • A qualified automotive or compliance status is required without further evidence

Check before use

  • Maximum drain transient voltage
  • Gate-drive amplitude
  • PCB copper area and junction temperature
  • Required compliance and lifecycle documentation

Key specifications

Drain-source voltage
30 V
Continuous drain current
4 A
Maximum RDS(on) at 10 V drive
42 mΩ at 4 A
Package
SOT-23, 3 pins

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Low-voltage switchingPortable electronicsGeneral-purpose switching

CAD Models

Download ECAD models for DO3402A: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

DO3402A is a DOINGTER N-channel trench MOSFET supplied in a 3-pin SOT-23 package. Its drain-source voltage rating is 30 V and its continuous drain-current rating is 4 A at TA = 25 °C.