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ULN2021ABU Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
ULN2021ABUSPRAGUE175Yes

ULN2021ABU is a high-voltage, high-current Darlington transistor array manufactured by Sprague.

The ULN2021ABU is a high-voltage, high-current Darlington transistor array manufactured by Sprague.

Specifications:

  • Manufacturer: Sprague
  • Type: Darlington Transistor Array
  • Configuration: 7-Channel (7 NPN Darlington Pairs)
  • Output Current (per channel): 500 mA (max)
  • Output Voltage (max): 50 V
  • Input Voltage (compatible with TTL, CMOS, PMOS): 5 V
  • Input Current (per channel): 2.5 mA (max)
  • Power Dissipation: 2.25 W (max)
  • Package Type: 16-Pin DIP (Dual In-line Package)
  • Operating Temperature Range: -20°C to +85°C

Descriptions:

The ULN2021ABU is designed for interfacing between low-level logic circuits and high-power peripheral devices. It features built-in suppression diodes for inductive load protection, making it suitable for driving relays, solenoids, and stepper motors.

Features:

  • High-Voltage & High-Current Capability
  • Integrated Clamp Diodes for inductive load protection
  • TTL/CMOS/PMOS Compatible Inputs
  • High Input Impedance
  • Wide Operating Temperature Range

This device is commonly used in industrial control systems, automotive applications, and other high-power switching circuits.

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