ACST210-8FP

Overview

The ACST210-8FP is an overvoltage protected AC switch from the ACS/ACST power switch family, utilizing A.S.D. technology. It integrates a Triac structure with a high voltage clamping device to absorb inductive turn-off energy and withstand line transients per IEC 61000-4-5 standards. The component features a low gate trigger current (IGT max 10 mA) for direct microcontroller interfacing and provides high electrical noise immunity (static dV/dt min 500 V/µs). Rated for 2 A RMS on-state current and 800 V blocking voltage, it operates within a junction temperature range of -40°C to +125°C.

Feature Summary

• Integrates overvoltage crowbar technology to clamp transient voltages without external protection components
• Provides high static dV/dt noise immunity exceeding 500 V/µs at elevated temperatures
• Enables direct logic-level driving via low gate trigger current requirements
• Offers UL certified insulation rated at 1500 V rms in the TO-220FPAB package

Applications

• AC on/off static switching in home appliances and industrial control systems
• Driving low power highly inductive loads such as solenoids, pumps, fans, and micro-motors
• Switching resistive or inductive loads like valves and bulb lamps

Procurement Notes

Verify the specific ordering code ACST210-8FP against manufacturer documentation to confirm the TO-220FPAB tube packaging format. Ensure design compliance with the specified thermal resistance values and maximum lead soldering temperatures during assembly processes.

Selection Notes

Select this component for applications requiring integrated surge protection and high noise immunity. The low gate current allows direct interface with standard logic circuits. Verify that the 2 A RMS current rating and 800 V blocking voltage meet the specific load requirements of the target application.

Part Context

This device belongs to the ACS/ACST power switch family built with Application Specific Discrete (A.S.D.) technology. It is designed for home appliances and industrial systems, offering enhanced reliability compared to standard Triacs by embedding a high voltage clamping device to manage inductive turn-off energy and line transients effectively.

Replacement Considerations

The ACST210-8B variant serves as a surface-mount alternative in the DPAK package within the same series. Designers should verify pinout compatibility and thermal performance differences when substituting between through-hole and surface-mount packages.