Features

 Triac with overvoltage crowbar technology

 High noise immunity: static dV/dt > 500 V/µs

 ACST210-8FP, in the TO-220FPAB package,

provides insulation voltage rated at 1500 V rms

Benefits

 Enables equipment to meet IEC 61000-4-5

 High off-state reliability with planar technology

 Needs no external overvoltage protection

 Reduces component count

 Interfaces directly with the micro-controller

 High immunity against fast transients

described in IEC 61000-4-4 standards

Applications

 AC on/off static switching in appliances and

industrial control systems

 Driving low power highly inductive loads like

solenoid, pump, fan, and micro-motor

Description

The ACST2 series belongs to the ACS™/ACST

power switch family. This high performance

device is suited to home appliances or industrial

systems and drives loads up to 2 A.

This ACST2 switch embeds a Triac structure with

a high voltage clamping device to absorb the

inductive turn-off energy and withstand line

transients such as those described in the

IEC 61000-4-5 standards. The component needs

a low gate current to be activated (IGT < 10 mA)

and still shows a high electrical noise immunity

complying with IEC standards such as

IEC 61000-4-4 (fast transient burst test).

ACST2属于分立半导体产品 > 晶闸管 - TRIAC。意法半导体（ST）集团制造生产的ACST2晶闸管 - TRIAC晶闸管可沿一个方向或在半个 AC 周期内传导 AC（交流电）。当 TRIAC（三极管 AC）的门极被触发时，即会沿任一方向传导电流。其他名称包括双向三极晶闸管或双侧三极晶闸管。TRIAC 分为无缓冲器、Alternistor、内部触发、逻辑门和标准型，安装方式包括底座、表面或通孔安装。这些器件可根据断态电压、通态电流、保持电流和门极触发电压进行选择。