MOC3081 Triac thyristor / SCR output
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The MOC3081 is an optocoupler with a zero-crossing triac driver output, designed for interfacing between low-voltage control circuits and high-voltage AC loads. It consists of a gallium arsenide infrared emitting diode optically coupled to a monolithic silicon triac driver. This optocoupler is suitable for applications requiring safe and reliable control of AC loads, offering isolation between control and load circuits.
Key Features:
- Zero-crossing triac driver output
- Optically coupled isolation
- High input-to-output isolation voltage
- Low input current requirement
- High noise immunity
- Suitable for 115/240 VAC applications
- Input Forward Current (IF): 10 mA (Maximum)
- Peak Forward Current (IFP): 1 A (1 µs pulse)
- Reverse Voltage (VR): 6 V
- Input Power Dissipation: 120 mW (No derating required up to Ta = 100°C)
- Output Power Dissipation: 150 mW
- Collector-Emitter Voltage (VCEO): 600 V
- Peak Repetitive Off-State Voltage: 600 V
- Peak Surge Current: 1 A
- Isolation Voltage: 5000 Vrms
- Operating Temperature Range: -40°C to +100°C
- Storage Temperature Range: -40°C to +125°C
- Lead Soldering Temperature: 260°C
- Solenoid/Valve Controls: Used in controlling solenoid valves in various automation systems.
- Static Power Switches: Ideal for implementing solid-state switches for controlling AC power.
- Temperature Controls: Suitable for HVAC and other temperature control systems.
- AC Motor Starters: Effective for controlling the start-up of AC motors.
- Lighting Controls: Can be used to switch and control lighting systems.
- AC Motor Drives: Suitable for driving and controlling AC motors in industrial applications.
- E.M. Contactors: Used in controlling electromagnetic contactors in various applications.
- Solid State Relays: Ideal for building solid-state relay circuits for isolating and controlling AC loads.
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment