Broadcom ASSR-5211 Series Solid State Relay, 0.4 A Load, Surface Mount, 600 V Load, 0.8 V Control

The ASSR-5211 Solid State Relay (SSR) is specifically designed for high current applications, commonly found in the industrial equipments.The relay is a solid-state replacement for single-pole, normally-open, (1 Form A) electromechanical relays.

The ASSR-5211 consists of an AlGaAs infrared light-emitting 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 specified 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 On-Resistance: 4Ω Typical for DC-only, 16Ω Typical for AC/DC


• High Speed Switching: 0.7ms (Ton), 0.07ms (Toff) Typical


• High Transient Immunity: >1kV/μs


• High Input-to-Output Insulation Voltage (Safety and Regulatory Approvals)

3750 Vrms for 1 min per UL1577
CSA Component Acceptance

Optocouplers, Avago Technologies