The ULN2803 is high-voltage, high-current darlington driver IC composed of 8 NPN darlington pairs. All units share the emitter in common, and each unit adopts open-collector output. A 2.7KΩ resistor is connected to each darlington pair in serial, which is compatible with TTL and 5V CMOS for data processing without logic buffer. 

Sink current of ULN2803 is up to 500mA, when it is off state, the withstand voltage is 50V and the output can runs with high load current, which provides solutions for various interface.

The ULN2003 is high-voltage, high-current darlington driver IC composed of 7 NPN darlington pairs. All units share the emitter in common, and each unit adopts open-collector output. A 2.7KΩ resistor is connected to each darlington pair in serial, which is compatible with TTL and 5V CMOS for data processing without logic buffer. 

Sink current of ULN2003 is up to 500mA, when it is off state, the withstand voltage is 50V and the output can runs with high load current, which provides solutions for various interface.

·With TO-220 package  

·DARLNGTON  

·High DC durrent gain 

·Low collector saturation voltage 

·Complement to type TIP120/121/122

• Designed for general-purpose amplifier and low speed  switching applications  

• RoHS Compliant