Avago Technologies is offering two new miniature voltage/current threshold detection optocouplers for use in a wide range of industrial control applications. 

The ACPL-K370/K376 optocouplers are designed to detect AC/DC sources and convert the voltage to a logic interface across an optical coupling barrier to provide safe isolation in electronically noisy environments found in industrial applications. 

These voltage/current sensing optocouplers are suitable for use in applications such as limit switch sensors, low voltage detectors, relay contact monitors, relay coil voltage monitors, and current sensors.

The ACPL-K370/K376 series, which are an upgrade from Avago’s HCPL-0370/3700/3760 optocoupler family, uses threshold sensing input buffer ICs which permit control of threshold levels over a wide range of input voltages up to 1140 Vpeak, with a single external resistor. 

Some of the key benefits provided by this new optocoupler series include a smaller stretched SO-8 (SSO-8) package which meets 8mm clearance and creepage requirements, and requires 30% less printed circuit board space compared to dual-inline packages (DIP-8).