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The ULN2002A, ULN2003A and ULN2004A are high voltage, high current Darlington arrays each containing seven open collector common emitter pairs. Each pair is rated at 500mA. Suppression diodes are included for inductive load driving, the inputs and outputs are pinned in opposition to simplify board layout.
Device options are designed to be compatible with common logic families:
ULN2002A (14-25V PMOS)
ULN2004A (6-15V CMOS, PMOS)
These devices are capable of driving a wide range of loads including solenoids, relays, DC motors; LED displays filament lamps, thermal print-heads and high power buffers.
The ULN2002A, 2003A and 2004A are supplied in a small outline 16 pin package (SO-16).


  • 500mA rated collector current (single output)
  • High voltage outputs: 50V
  • Output clamp diodes
  • Inputs compatible with popular logic types
  • Relay driver applications
  • “Green” Molding Compound (No Br, Sb)
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Product Specifications

Product Parameters

Number of Drivers 7
Input Compatibility 5V TTL CMOS
Input Voltage Max 30 V
Collector to Emitter Voltage Rating 50 V
Output Voltage Max 50 V
Output Current Max 500 mA
Delay Time Typ 250 ns
Operating Temperature Range -40 to 105 °C

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Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
ULN2002AD16-U Digi-Key Electronics 3695 8/11/2020 Buy Now United States
ULN2002AD16-U Mouser Electronics Inc. 4543 8/11/2020 Buy Now United States
ULN2002AS16-13 Digi-Key Electronics 61 8/11/2020 Buy Now United States
ULN2002AS16-13 Mouser Electronics Inc. 1340 8/11/2020 Buy Now United States