The ASSR-32XX Solid State Relay series consist 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 single channel configurations, ASSR-3210 and ASSR-3211, are equivalent to 1 Form A Electromechanical Relays (EMR), and the dual channel configuration, ASSR-3220, is equivalent to 2 Form A EMR. They are available in 4-pin SO, 6-pin DIP, 8-pin DIP and Gull Wing Surface Mount for DIP packages. Their electrical and switching characteristics are specified over the temperature range of -40°C to 85°C. They are used for general purpose switching of signals and low power AC/DC loads.
ASSR-3211 enables AC/DC and DC-only output connections. For DC-only connection, the output current, Io, increases to 0.4A and the on-resistance, R(ON) reduces 2.5Ω.
Feature
- Compact Solid-State Bi-directional Signal Switch
- Single and Dual Channel Normally-off Single-Pole-Single-Throw (SPST) Relay
- 250V Output Withstand Voltage
- 0.2A or 0.4A Current Rating (See Schematic for ASSR-3211 Connections A & B)
- Low Input Current: CMOS Compatibility
- Low On-Resistance: 2Ω Typical for DC-only, 8Ω Typical for AC/DC
- Very High Output Off-state Impedance: 10 Teraohms Typical
- High Speed Switching: 0.25ms (Ton), 0.02ms (Toff) Typical
- 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
- Options available are:ASSR-321050XE = Tape and Reel Packaging OptionXXXE = RoHS Compliant OptionASSR-3211 and ASSR-322030XE = Gull Wing Option50XE = Tape and Reel Packaging OptionXXXE = RoHS Compliant Option
Applications
- Telecommunication Switching
- Data Communications
- Industrial Controls
- Medical
- Security
- EMR / Reed Relay Replacement
