Photovoltaic Relays

Overview

Our photovoltaic relays (PVR) are remotely controlled switches (on/off) with complete galvanic isolation from input to output. No power supply is needed on the output.

The operating parameters of PVRs are ideal for switching low-level signal loads in instrumentation and data acquisition to medium power loads in industrial controls and process automation, i.e. from microvolts and microamps to 400V (AC peak or DC) and up to 6.0A of load current at a contact resistance as low as 15 milliohms. PVRs utilize our power MOSFETs or IGBTs as the output switches, driven by an integrated circuit photovoltaic generator. The output switch is controlled by radiation from a GaAlAs light emitting diode (LED), which is optically isolated from the photovoltaic generator. This isolation provides users with protection from electrical shocks and protects electronics (such as microprocessors) from damage from high-voltage spikes.

Products
Details
Features Features Applications
  • Complete galvanic isolation from input to output
  • UL508  certified up to Viso = 4 kV(rms) for 1 min
  • Compact solution
  • Low power consumption
  • Solid state reliability with long operational life
  • Bounce-free operation
  • Silent operation
  • Fast switching speeds
  • Insensitivity to stray electro-magnetic fields
  • Insensitive to normal levels of shock and vibration 
  • Stable contact resistance over life 
  • Positional insensitive
  • Do not generate sparks or electric arcs
  • Linear AC/DC operation
  • Comprehensive portfolio of 1 Form A (single channel, normally open) and 2 Form A (dual channel normally open) relays
  • Compact solutions available in DIP and SMT packages
  • High input sensitivity
  • Load voltage range from 20 V to 400 V
  • Up to 4 A AC load current
  • MOSFET-based SSRs offer very low on-resistance and high-off state impedance with switching times as fast as 150 us.
  • IGBT-based SSR PVX6012 offers high load current in PDIP14 package  
  • Current limiting versions available
  • ESD Tolerance: 
    • Up to 4000 V human body model
    • Up to 500 V machine model
  • Electro mechanical relay replacement
  • Battery management systems
  • Power supplies and power distribution
  • Process control
  • Programmable logic
  • controllers
  • Automatic Test equipment
  • Industrial automation
  • Robotics
  • Instrumentation systems
  • Thermostats
  • Audio equipment
  • On/Off hook switch
  • General switching
  • Control of displays and indicators 

 

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