AC Output
SSRs
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Solid State Optronics AC Output Solid State Relays (SSRs) provide an optically isolated means of switching AC Loads. Offered with either SCR and TRIAC output structures, with either ZVC (Zero Volt Cross) or RP (Random Phase) switching, AC-Output SSRs tend to be more robust than their MOSFET Output counterparts, typically making them better suited to industrial switching applications wherein a load may connect directly to an AC Line.
While all SCR output-based relays naturally turn off at zero current, these two types of devices differ in where they turn on within the AC cycle. Zero Volt Cross switching (ZVC) devices turn on within a small window about Zero Volts (typically a +/-5V window), thereby avoiding the creation of transients. Random phase devices will turn on anywhere within the AC line cycle, upon application of an input signal, and are typically used in dimming applications.
Advantages
SSO AC Output Solid State Relays (SSRs) come in a variety of packages and output types ranging from a 6 pin DIP, 16 pin DIP, and 4pin SuperSIP with blocking voltages up to 800V and load currents up to 2.5A.
AC Output SSRs offer all the benefits of Solid State Switching technology including:
One Product Family.
Two ouput switching types.
Zero Volt Cross switching (ZVC) Devices turn on within a small window about Zero Volts (SSO specifies a +/-5V window), thereby avoiding the creation of transients.
Random Phase Devices will turn on anywhere within the AC line cycle, upon application of an input signal, and are typically used in dimming applications.
Applications
Functionally equivalent to a discrete optically isolated TRIAC (or back-to-back SCR) circuit, SSO's family of AC Output Solid State Relays provide an integrated optically isolated switching solution to applications in: