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ULN2803ADN AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2803ADN product

ULN2803ADN

Transistors - Bipolar (BJT) - Single

8-channel driverDarlington array50 V500 mADIP-18inductive load clamp

ULN2803ADN is a DIP-18, eight-channel Darlington low-side driver for logic-controlled inductive and DC loads up to 50 V.

Best for

  • Multi-channel low-side relay and solenoid drivers
  • Logic-controlled inductive loads
  • Through-hole DIP-18 designs

Avoid if

  • Low voltage-drop switching is required
  • Load current or thermal requirements exceed validated operating conditions

Check before use

  • Confirm load current and duty cycle
  • Account for VCE(sat) at operating current
  • Connect COM correctly for flyback protection

Key specifications

Channels
8
Output voltage
50 V maximum
Collector current
500 mA maximum per channel
Package
DIP-18
Operating temperature
-40 to 85 °C

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay driversSolenoid driversStepper motor driversDC lighting control

Datasheet

3f2c46995f9e738e651f884d4bb935d3_ULN2803ADN.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ULN2803ADN: 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

ULN2803ADN is an eight-channel NPN Darlington transistor array in a DIP-18 package. It provides common-emitter, open-collector low-side outputs with integrated clamp diodes.