ULN2003 7 Darlington Transistor Arrays IC DIP-16
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
ULN2003 7 Darlington Transistor Arrays IC DIP-16
ULN2003 7 Darlington Transistor Arrays IC DIP-16_1
ULN2003 7 Darlington Transistor Arrays IC DIP-16_2

ULN2003 7 Darlington Transistor Arrays IC DIP-16

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The ULN2003 is an integrated circuit (IC) that consists of seven Darlington transistor arrays.

Here are some key details about the ULN2003:

Functionality: The ULN2003 contains seven Darlington transistor pairs, each capable of driving inductive loads such as relays, solenoids, and stepper motors.

Package Type: The "DIP-16" designation indicates that the ULN2003 is housed in a Dual Inline Package with 16 pins.

Darlington Transistor Pair: A Darlington pair is a configuration of two bipolar transistors that provide high current gain. The ULN2003 integrates seven such pairs, making it suitable for driving higher current loads.


The ULN2003 is commonly used as a driver for various loads in electronic circuits. Its ability to handle higher currents makes it suitable for interfacing with relays, motors, and other inductive loads.

Inputs and Outputs: Each Darlington pair in the ULN2003 has a dedicated input pin and a corresponding output pin. When a logic high signal is applied to the input, the corresponding output can sink current from the load.

Flyback Diodes: The ULN2003 is designed to handle inductive loads, and each output usually includes a built-in flyback diode (or freewheeling diode) to protect against voltage spikes generated by inductive loads.

Voltage Ratings: The ULN2003 is designed to operate with a wide range of supply voltages, typically in the range of 5V to 15V.


  • Seven Darlingtons per package
  • Output current 500 mA per driver (600 mA peak)
  • Output voltage 50 V DC
  • Integrated suppression diodes for inductive loads
  • Outputs can be paralleled for higher current
  • TTL/CMOS/PMOS/DTL compatible inputs
  • Input pins placed opposite to output pins to simplify layout 


  • Used to drive high current loads using Digital Circuits
  • Can be used to drive Stepper motors
  • High current LED’s can be driven
  • Relay Driver module (can drive 7 relays)
  • Logic Buffers in digital electronics
  • Used as Touch sensor for Arduino

Physical Attributes

  • Length * Width * Height (mm): 19 x 8 x 7
  • Weight (gm) : 1


Package Includes

  • 1 x ULN2003 7 Darlington Transistor Arrays IC DIP-16

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