ULN2003 SMD

 20
• 7-channel high-voltage, high-current Darlington transistor array
• Surface-mount (SMD) package for compact circuit designs
• Each channel handles up to 500mA of output current
• Compatible with TTL and CMOS logic levels
• Integrated flyback diodes for inductive load protection
• Ideal for driving stepper motors, relays, and LED arrays
• Efficient, reliable, and easy to integrate into modern electronics

ULN2004

 10
• 7-channel high-voltage, high-current Darlington transistor array
• Each channel can handle up to 500mA of output current
• Compatible with TTL and CMOS logic levels
• Integrated flyback diodes for inductive load protection
• Compact DIP-16 package for easy PCB integration
• Efficient and reliable switching for motors, relays, and solenoids
• Widely used in electronics, robotics, and IoT projects