ACS302-5T3

Overview

The ACS302-5T3 is a three-line AC switch array built on the ASD concept, designed for static switching in appliance and industrial control systems. It integrates three bidirectional AC switches capable of controlling resistive or inductive loads up to 0.2 A per line, with a total nominal conducting current of 0.4 A for the array. The device features a blocking voltage (VDRM/VRRM) of 500 V and a clamping voltage (VCL) of 600 V. Gate triggering requires a negative current (IGT < 5 mA), allowing direct interface with microcontrollers without external overvoltage protection.

Feature Summary

• Integrates high-voltage clamping structures to absorb inductive turn-off energy
• Includes gate level shifter drivers to isolate digital controllers from main switches
• Eliminates stressing gate kickback on connected microcontrollers
• Array structure simplifies design while increasing reliability and saving space

Applications

• Washing machines and dishwashers
• Tumble dryers and refrigerators
• Water heaters and cookware
• Low power solenoids, valves, relays, and door locks

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors. Confirm package integrity upon receipt, as the SO-20 tube packaging contains 40 units. Ensure storage conditions remain within specified limits to maintain moisture sensitivity level 1 classification prior to soldering.

Selection Notes

Select this component when driving multiple low-power AC loads requiring integrated surge protection. The 500 V rating suits standard mains applications. Verify that load currents do not exceed 0.2 A per channel or 0.4 A total to prevent thermal overload. Ensure controller logic supports negative gate current sourcing for proper triggering.

Part Context

Part of the ACS302 AC line switch family utilizing the ASD technology. Manufactured by STMicroelectronics in an SO-20 wired package. Designed specifically for replacing mechanical relays in compact appliance designs where space and reliability are critical constraints.

Replacement Considerations

ACS302-6T3 offers similar functionality but with a higher 600 V blocking voltage rating. Verify if the increased voltage tolerance is necessary for specific application requirements before substituting.