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ULN2003D AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2003D product

ULN2003D

Transistors - Bipolar (BJT) - Single

Darlington ArrayDriver ICRelay Driver

The ULN2003D is a 7-channel Darlington transistor array designed for high-current, high-voltage switching of inductive loads like relays and motors.

Best for

  • Relay driving
  • Stepper motor control
  • LED display driving

Avoid if

  • High-frequency switching applications (limited by Darlington switching speeds)
  • Applications requiring very low saturation voltage

Check before use

  • Thermal dissipation limits
  • Input logic level compatibility

Key specifications

Channels
7
Max Output Current
500 mA
Max Voltage
50 V

Compliance & Environment

RoHS
Pb-Free
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay DriverStepper Motor

Datasheet

7d5c0e4b360a1defc6b302e34603eb6e_2207251030_Mixic-ULN2003D_C5119776.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ULN2003D: 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

It is a monolithic high-voltage, high-current Darlington transistor array containing seven independent channels, each capable of sinking 500mA.