Diodes Incorporated
SO 16

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The DIODES™ ULN62003A is a high-voltage, high-current transistor array containing seven open drain devices, with all of their sources connected to a common ground. The transistors are rated at 500mA with each having a clamp diode for protection needed for driving inductive loads.

The DMOS output construction has a lower on-resistance than the common bipolar devices reducing power dissipation, allowing the designer additional flexibility to control more devices and maintain the desired die temperature.

These devices are capable of driving multiple load types such as solenoids, relays, DC motors, LED displays, filament lamps, thermal print-heads, and high-power buffers.

The device is pinned in opposition to simplify board layout and is a direct replacement for many common peripheral drivers. The ULN62003A is available in an industry-standard, small outline, 16-pin package (SO-16).


  • 500mA Rated Drain Current (Single Output)
  • High Voltage Outputs: 50V
  • Output Clamp Diodes
  • Inputs Compatible with Popular Logic Types
  • Relay Driver Applications
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.



  • Appliances
    • Window A/Cs
    • Washers/Dryers
    • Microwaves/Ranges/Ovens
  • Industrial and agricultural automation
  • Residential and industrial HVAC systems
  • Stepper motor drivers
  • Thermal print heads

Product Specifications

Product Parameters

Numberof Drivers 7
Input Compatibility 5V TTL CMOS
InputVoltageMax (V) 30 V
Collector to EmitterVoltage Rating (V) 50 V
OutputVoltage Max (V) 50 V
OutputCurrentMax (mA) 500 mA
DelayTime Typ (ns) 400 ns
OperatingTemperatureRange  (°C) -40 to 85 °C

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