ULN2803 Darlington Transistor Array DIP18 | ULN2803 Through hole IC

About ULN2803 Darlington Transistor Array DIP18 | ULN2803 Through hole IC:

The ULN2803 Darlington Transistor Array DIP18 is a high-performance, versatile, and cost-effective integrated circuit designed for driving multiple high-current loads. This ULN2803 Through Hole IC is ideal for interfacing between low-level logic circuitry and high-power devices such as relays, lamps, solenoids, stepper motors, and LED displays.

Engineered with eight open-collector NPN Darlington pairs, the ULN2803 offers the capability to handle output currents of up to 500mA per channel and output voltages up to 50V. Each channel includes a built-in clamp diode for inductive load suppression, providing safe and reliable operation in industrial and commercial applications.

The ULN2803 Through Hole IC comes in a robust DIP-18 package that makes it ideal for breadboard prototyping and durable PCB mounting. Its through-hole design ensures a solid mechanical and electrical connection, preferred by engineers, students, and hobbyists for ease of use and long-lasting reliability.

Key Features

• Type: ULN2803 Darlington Transistor Array

• Package: DIP-18 Through Hole

• Eight NPN Darlington pairs with high-voltage outputs

• Output current: up to 500 mA per channel

• Output voltage: up to 50V

• Input compatible with TTL and 5V CMOS logic

• Built-in flyback diodes for inductive load protection

• Low input current and high current gain

• Compact and durable DIP-18 through-hole package

• Wide operating voltage range and high switching speed

Applications

The ULN2803 NPN Darlington Transistor Array DIP18 is widely used in:

• Relay and solenoid driver circuits

• Stepper motor controllers

• LED and lamp driving circuits

• Industrial automation systems

• Robotics and CNC machine control

• Microcontroller and PLC interfacing

• Home and building automation projects

• DIY and educational electronic kits

Why Choose ULN2803 Through Hole IC?

The ULN2803 Through Hole IC is one of the most popular Darlington transistor arrays for electronic control and automation. It simplifies circuit design by integrating eight Darlington transistor pairs with built-in flyback diodes in a single compact IC.

This makes it a reliable choice for engineers who need to switch multiple high-current or inductive loads directly from microcontrollers, such as Arduino, Raspberry Pi, and PIC boards. The built-in diodes protect against voltage spikes generated by inductive loads, ensuring component safety and extended lifespan.

The DIP-18 package makes it easy to prototype and integrate the ULN2803 into existing systems. Its through-hole form factor provides strong solder joints, making it suitable for both prototyping and industrial-grade designs.

For professionals in India’s growing electronics market, the ULN2803 Darlington Transistor Array DIP-18 offers a dependable, cost-effective, and easy-to-use solution for power control applications.

Benefits of ULN2803 Darlington Transistor Array DIP18

• High Load Capacity: Drives multiple relays, LEDs, or motors efficiently.

• Built-in Protection: Includes flyback diodes for safe inductive load control.

• Versatile Use: Suitable for various voltage and current applications.

• Logic Compatibility: Interfaces directly with TTL, CMOS, and microcontrollers.

• Easy Assembly: Through-hole DIP-18 design simplifies soldering and prototyping.

• Robust and Reliable: Consistent performance under diverse conditions.

Summary

The ULN2803 Darlington Transistor Array DIP18 is a powerful and reliable IC designed for driving high-current loads with ease. Featuring eight integrated Darlington transistor pairs and built-in flyback diodes, it ensures smooth operation in relay control, motor driving, and automation circuits.

With its through-hole DIP-18 package, the ULN2803 is easy to handle, solder, and integrate into any project — from industrial controllers to educational kits. Trusted by engineers and hobbyists alike, this ULN2803 Through Hole IC is the perfect choice for applications requiring efficient current amplification and load switching.

Whether you’re designing an industrial control panel, robotics project, or LED display driver, the ULN2803 NPN Darlington Transistor Array DIP18 delivers unmatched reliability, simplicity, and performance in one compact package.

Manufacturing Part Number (MPN): ULN2803
Package: DIP-18 Through Hole
Pins: 18

Click Here to see Various ICs.

Click Here for the datasheet.