General Description
The PVA33 Series AC Relay (PVA) is a single-pole, normally open, solid-state replacement for electromechanical relays used for general purpose switching of analog signals. It utilizes International Rectifier’s HEXFET power MOSFETs as the output switches, driven by an integrated circuit photovoltaic generator of novel construction. The output switch is controlled by radiation from a GaAlAs light emitting diode (LED), which is optically isolated from the photovoltaic generator.
The PVA33 Series overcomes the limitations of both conventional electromechanical and reed relays by offering the solid state advantages of long life, fast operating speed, low pick up power, bounce-free operation, low thermal offset voltages and miniature package. These advantages allow product improvement and design innovations in many applications such as process control, multiplexing, automatic test equipment and data acquisition.

Features
▪ Bounce-Free Operation
▪ 1010 Off-State Resistance
▪ 1,000 V/µsec dv/dt
▪ 0.2 µV Thermal Offset
▪ 5 mA Input Sensitivity
▪ 4,000 VRMS I/O Isolation
▪ Solid-State Reliability
▪ UL Recognized
▪ ESD Tolerance:
   4000V Human Body Model
   500V Machine Model
  
Applications
▪ Process Control
▪ Data Acquisition
▪ Test Equipment
▪ Multiplexing and Scanning