The ULN2001A, ULN2002A, ULN2003 and ULN2004A are high voltage, high current darlington PIN CONNECTION arrays each containing seven open collector dar- lington pairs with common emitters. Each channel rated at 500mA and can withstand peak currents of 600ma. WHERE TO USE: These versatile devices are useful for driving a wide range of loads including solenoids, […]
Tag: buffer
Relay
The relay is simply an electrically operated switch i.e. relay has two states and state of the relay depends upon the presence of electrical signal. The relay is usually cuboid shaped and has 5 pins. WHERE TO USE: The relay is used as a switch between two independent circuits. I.e. one circuit can be used […]