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ULN2803AD AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2803AD product

ULN2803AD

Transistors - Bipolar (BJT) - Arrays

Darlington ArrayDriverInductive Load

The ULN2803AD is an 8-channel Darlington transistor array capable of driving high-current inductive loads up to 500mA per channel at 50V.

Best for

  • Relay driving
  • Stepper motor control
  • Lamp and LED display driving

Avoid if

  • Applications requiring extremely high-speed switching beyond the microsecond range.

Check before use

  • Input logic voltage levels
  • Total package power dissipation

Key specifications

Channels
8
Max Output Voltage
50 V
Max Collector Current
500 mA

Compliance & Environment

RoHS
Yes
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay DriversMotor Drivers

Datasheet

99f53ed081111cfeb837e902d8e41c66_2404031723_HTC-Korea-TAEJIN-Tech-ULN2803AD_C481684.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ULN2803AD: 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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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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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

The ULN2803AD is a monolithic high-voltage, high-current Darlington transistor array containing eight NPN Darlington pairs, designed for switching inductive loads.