I am working on a project and nearing its deadline and still stuck in few problems ... can anyone help out?
I needed a transil diode for my circuit protection and I am having trouble acquiring it (surprising! isn't it) and for time been I am doing it with a Zener but I know it wont be enough when it get tougher i.e. when a high voltage transient gets in... so can anybody suggest me a solution or alternative. I actually needed SA5.0A unipolar transil diodes but can anyone suggest any other having same characteristics(like 600W 57Amps 5.8V clamp and 6.8V breakdown) or a zener perhaps would do?
can anyone tell me if I could use a VDR (voltage dependent resistor) instead of a MOV(metal oxide varistor)
one more thing.. does any one know a triac or like wise that requires low triggering current like 1 or 2 mA and PIR (pyroelectric infrared sensor) thats cheap and easily available