ULN2803 SOIC-18 Wide – 8-Channel Darlington Transistor Array Driver IC

The ULN2803 is an 8-channel Darlington transistor array driver IC designed to interface logic-level signals with higher current/voltage loads. Each channel can handle up to 500mA at 50V, making it ideal for driving relays, stepper motors, lamps, solenoids, and LED displays.

Packaged in a SOIC-18 wide surface-mount package, the ULN2803 is widely used in automation, robotics, industrial control, and embedded systems where multiple loads need to be controlled by microcontrollers or logic circuits. Its built-in suppression diodes make it especially suited for inductive load driving.

Features:

• 8-channel Darlington transistor array driver IC
• High current handling: up to 500mA per channel
• High voltage tolerance: up to 50V output
• Built-in clamp diodes for driving inductive loads
• TTL/CMOS compatible inputs
• Compact SOIC-18 wide SMD package
• Commonly used for relay, motor, solenoid, and LED driving
• Reliable performance in automation and control applications

Specifications:

• Model: ULN2803
• Package Type: SOIC-18 Wide (Surface Mount)
• Number of Channels: 8
• Output Current (per channel): 500mA max
• Output Voltage: Up to 50V
• Input Compatibility: TTL and CMOS logic
• Integrated Protection: Clamp diodes for inductive loads
• Applications: Relay driver, LED driver, stepper motor driver, solenoid driver, automation, robotics, embedded systems

Package Includes:

• 1 x ULN2803 SOIC-18 Wide Darlington Driver IC