Functioning as a trigger diode with a fixed voltage reference, the Diac can be used in conjunction with Triacs for simplified gate control circuits or as a starting element of power oscillators in fluorescent lamp ballasts.

diac符號類似於在相反方向上連接的兩個二極管。它在視覺上表示其在雙向進行電流的能力。此符號在交流電路中很重要。與標準二極管不同，diac使用標記為a1和a2或mt1＆mt2的非偏振端子，表明電流傳導可以根據施加的電壓從任一端子開始。

What the diac allows you to do is to charge a capacitor of something like 100nF from a relatively high resistance (allowing a time constant that can be adjusted over most of a mains half-cycle for wide-range dimming).

触发二极管又称 双向触发二极管 （diac）属三层结构，具有对称性的二端 半导体器件 。 常用来触发 双向可控硅 ，在电路中作 过压保护 等用途。 中文名

A new surface mount version is now available in SOT-23 package, providing reduced space and compatibility with automatic pick and place equipment. DIOTEC Electronics Corp... STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.

DIAC is an acronym that stands for “Di ode for Alternating Current”. It is a two-terminal bidirectional switch that conducts in both directions when the applied voltage exceeds its break over voltage. It cannot amplify or offer controlled switching.

2025年1月22日 · What is a DIAC? DIAC stands for Diode for Alternating Current. It is a bidirectional semiconductor device designed to conduct current in both directions when a specific voltage threshold, known as the breakover voltage, is reached. Unlike other thyristors, DIACs lack a gate terminal, making them unique in their functionality.

A DIAC, short for "Diode for Alternating Current," acts as a semiconductor switch that can operate in both directions. Meaning it can be triggered in both forward & reverse polarities. This bi-directional switching capability makes the DIAC essential in controlling AC power in various electronic devices.

The VK05CFL is a dedicated device for realizing low power electronic ballast. In a monolithic structure it integrates the power stage and the logic part for the converter control.

DIAC ou "Diode for Alternating Current" em tradução literal "Diodo para Corrente Alternada" - É um diodo bidirecional que conduz corrente elétrica somente após a sua tensão de ruptura (VBO) ter sido atingida, ou, também é conhecido como; corrente de corte, tensão de disparo.