Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
A SIDAC is realy a thyristor. Thus, it will trigger at a certain voltage and remain in conduction until the current through it drops below the hold-up current.
To test, apply an increasing voltage to the SIDAC, through a resistor. At a certain voltage the SIDAC will turn on. This is a parameter that you need, so measure it carefully.
The current limiting resistor should be high enough such that the resulting current through the SIDAC is lower than the maximum continuous current, but low enough to ensure the current will be higher than the hold-up current, so the SIDAC will stay on.
Once the SIDAC has triggerred, measure the current through it and increase the series resistor until the SIDAC turns off. The current at which the SIDAC turns off is the hold-up current.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.