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Solid State Optronics

AC Output Solid State Relays

AC Output Solid State Relays (SSRs) provide an optically-isolated means of switching AC Loads. Activated by the application of a logic level signal, these SCR-based devices 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.

SSO categorizes its AC Output Solid State Relay (SSR) product offering in two families: Zero-Volt Cross Switching and Random Phase.

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 (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:
  • Programmable Control
  • Valve control
  • Solenoids and coils
  • Remote switching
  • Home appliances
  • Metering equipment
  • Heating Controls
  • Dimmer Controls
  • Process Control
  • Power Control Panels
  • Contactors
  • Motor Controls
  • Gaming machines
  • Gas pump control

Benefits

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 SIP with blocking voltages up to 800V and load currents up to 1.2A. AC Output SSRs offer all the benefits of Solid State Switching technology including:
  • High blocking voltage (up to 800 V)
  • Switching AC loads without the generation of transients (ZVC devices)
  • High Input to Output Isolation (5000Vrms)
  • Long life / Bounce-free switching
  • Compact package size
  • Load currents up to 1.2 A
  • High input to output noise immunity
  • Random Phase and Zero-Volt Cross Switching
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Loading... Solid State Optronics (SSO) AC Output Solid State Relay
Part
Number
Poles Switch
Type
Output
Type
Package
Type
Blocking
Voltage
(V)
Load
Current
(mA)
On
Voltage
(V)
Inhibit
Voltage
(V)
Isolation
Voltage
(Vrms)
Holding
Current
(mA)
Leakage
Current
(μA)
Request
Samples