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ULN2003 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2003 product

ULN2003

Component

Darlington ArrayDriver ICNPN

The ULN2003 is a versatile 7-channel Darlington transistor array designed for driving high-current loads like relays, motors, and lamps from low-power logic signals.

Best for

  • Relay driving
  • Stepper motor control
  • LED display driving

Avoid if

  • Applications requiring >500mA per channel
  • High-frequency switching applications

Check before use

  • Thermal dissipation at high currents
  • Logic voltage levels

Key specifications

Channels
7
Max Current
500 mA
Max Voltage
40 V
Logic Interface
TTL/5V CMOS

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay DriversStepper Motors

Datasheet

f91c2662101368a8533ae32e38ab16b5_1912111437_Shanghai-Siproin-Microelectronics-ULN2003_C411052.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ULN2003: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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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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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

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

Design and risk insights

Questions & answers

It is a high-voltage, high-current Darlington transistor array containing seven NPN pairs, ideal for interfacing low-level logic with high-power loads.