ASSR-5211-001E

The ASSR-5211 is specifi cally designed for high current applications, commonly found in the industrial equipments. The relay is a solid-state replacement for singlepole, normally-open, (1 Form A) electromechanical relays. The ASSR-5211 consists of an AlGaAs infrared lightemitting diode (LED) input stage optically coupled to a high-voltage output detector circuit. The detector consists of a high-speed photovoltaic diode array and driver circuitry to switch on/off two discrete high voltage MOSFETs. The relay turns on (contact closes) with a minimum input current of 3mA through the input LED. The relay turns off (contact opens) with an input voltage of 0.8V or less. The ASSR-5211 connection A, as shown in the schematic, allows the relay to switch either ac or dc loads. The connection B, with its advantages of reduced on-resistance and higher output current, allows the relays to switch dc loads only. The electrical and switching characteristics are specifi ed over the temperature range of -40°C to +85°C.

• Compact Solid-State Bi-directional Signal Switch
• Single Channel Normally-off Single-Pole-Single-Throw (SPST) Relay
• 600V Output Withstand Voltage
• 0.2A or 0.4A Current Rating
• Low Input Current: CMOS Compatibility
• Low On-Resistance: 2.5? Typical for DC-only, 10? Typical for AC/DC
• High Speed Switching: 0.7ms (Ton), 0.07ms (Toff ) Typical @ IF = 5mA
• High Transient Immunity: >1kV/µs
• High Input-to-Output Insulation Voltage (Safety and Regulatory Approvals Pending)
  • 3750 VRMS for 1 min per UL1577
  • CSA Component Acceptance