SIDACs
A SIDAC – Silicon Diode Alternating Current – is a discrete on/off switch that is used to control the output power of an electrical circuit.
Differences between SIDACs and DIACs
SIDACs are similar to DIACs (three-layer diodes that conduct electrical current) because their operation is nearly identical. However, a SIDAC is a five-layer device. In general, it has a higher break-over voltage and greater current handling capacities. SIDACs can be used directly for switching and not simply for triggering another switching device. They're commonly used in:
- High voltage lamps
- High voltage power supplies
- Pulse generators
- Fluorescent lighting
How do SIDACs work?
SIDACs are widely used with TRIACs to improve the operation of your power switching system.
They remain in a non-conducting state until the voltage across your device rises to a level above the break-over voltage. At this point the device starts to conduct.
The device will continue to conduct until the voltage falls below its holding current, at which point the device will return to its non-conducting state. It will then conduct again once the break-over voltage is exceeded.
Related links
- DIACs
- Zener Diodes
- Seeed Studio Grove - Electricity Sensor Sensor Board Alternating...
- onsemi 600V 8A, Silicon Junction Diode, 2-Pin TO-220AC FFP08H60STU
- IXYS 1600V 7A, Silicon Junction Diode, 2-Pin DSA2-16A
- ROHM 430V 20A, Silicon Junction Diode, 2 + Tab-Pin TO-220FN RFUH20TB4SNZC9
- ROHM 200V 8A, Dual Silicon Junction Diode, 3 + Tab-Pin TO-220FN...
- Fagor Electronica 600V 1.5A, Silicon Junction Diode, 2-Pin SOD123W...