ACS120-7SB

Overview

The ACS120-7SB is an AC line switch from the ASD™ family, packaged in a DPAK. It controls loads up to 2 A with a repetitive peak off-state voltage of +/-700 V and a typical avalanche controlled clamping voltage of 1100 V. The device features a gate triggering current (IGT) of less than 10 mA and high noise immunity with a static dV/dt greater than 500 V/µs. It integrates a high voltage clamping structure for inductive turn-off energy absorption and a gate level shifter driver to isolate the digital controller.

Feature Summary

• Integrates a high voltage clamping structure to absorb inductive turn-off energy without external snubbers
• Includes a gate level shifter driver to separate the digital controller from the main switch
• Triggered by negative gate current flowing out of the gate pin
• Interfaces directly with microcontrollers while eliminating gate kickback

Applications

• AC static switching in appliance control systems
• Driving low power high inductive or resistive loads such as relays, valves, solenoids, and dispensers
• Control of pumps, fans, micro-motors, and defrost heaters
• Washing machines, dishwashers, tumble dryers, refrigerators, air-conditioning systems, and cookware

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and delivery mode. The standard tube packaging contains 75 units per tube. Tape and reel options are available for automated assembly processes. Confirm that the component meets UL94 V0 epoxy requirements for your application safety standards.

Selection Notes

Select this component for applications requiring direct microcontroller interface and robust handling of inductive loads. Ensure the thermal design accounts for the junction-to-ambient resistance of 70 °C/W in the DPAK package. Verify that the load current remains within the 2 A RMS limit at the expected case temperature.

Part Context

The ACS120-7SB belongs to the AC Switch Family built around the ASD™ concept. This series includes variants like the ACS120-7SFP and ACS120-7ST, offering different package options such as TO-220FPAB and TO-220AB while maintaining similar electrical characteristics for AC line switching applications.

Replacement Considerations

Check for other members of the ACS120 family, such as ACS120-7SFP or ACS120-7ST, if different package footprints are required. Ensure any substitute maintains the same 700 V blocking voltage and 2 A current rating.