The ULN2003AN is a high-voltage, high-current Darlington transistor array. It may be used in a variety of applications, including relay drivers, stepper motor and solenoid drivers, and other high-current, high-voltage loads. The ULN2003AN features seven Darlingtons per package, each capable of sourcing 500 mA and up to 50 V. The ULN2003AN is designed for use with input voltages up to 5 V and is compatible with various microcontrollers, making it perfect for a range of industrial and consumer applications. Its integrated suppression diodes in the ULN2003AN also help protect the array from the back EMF generated when driving inductive loads. The ULN2003AN is available in various package types, making it suitable for a wide range of designs and applications. It's a versatile and reliable choice for driving high-voltage, high-current loads efficiently and effectively.