ULN2803ALN(XBLW) AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2803ALN(XBLW) product

ULN2803ALN(XBLW)

Component

ULN2803ALDarlington array8-channel driver50 V500 mADIP-18Clamp diode

ULN2803ALN is an 8-channel, low-side NPN Darlington driver in DIP-18 for switching inductive or resistive loads from TTL or 5 V CMOS logic.

Best for

  • Relay and solenoid low-side drivers
  • Lamp and LED-matrix drivers
  • TTL or 5 V CMOS controlled loads

Avoid if

  • Applications requiring a very low output voltage drop
  • Loads exceeding 500 mA continuous per channel
  • High-side switching requirements

Check before use

  • Per-channel current and 50 V output limit
  • Thermal dissipation at the selected load current
  • COM connection for inductive loads
  • DIP-18 footprint and 2.54 mm pin pitch

Key specifications

Outputs
8 NPN Darlington low-side channels
Output voltage
50 V max
Output current
500 mA continuous per channel max
Package
DIP-18

Compliance & Environment

RoHS
RoHS
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay driversStepper motor driversHVAC valve driversLED dot-matrix drivers

CAD Models

Download ECAD models for ULN2803ALN(XBLW): 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

ULN2803ALN is an XBLW eight-channel NPN Darlington transistor array in a DIP-18 package. It provides low-side outputs with integrated common-cathode clamp diodes.