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MOC3020 IC Traic OptoIsolator IC
The MOC3020 is a non–zero-cross triac optoisolator designed for interfacing low-voltage control circuitry (like microcontrollers, logic circuits, and sensors) with high-voltage AC loads.
It consists of an infrared LED optically coupled to a phototriac driver that can trigger a main power triac.
Since the MOC3020 does not include zero-cross detection, it supports random-phase triggering, allowing the triac to fire at any point in the AC waveform.
This is important for dimming, motor speed control, and phase-angle power regulation.
The IC provides galvanic isolation between the low-voltage control side and high-voltage AC mains, improving safety and noise immunity.
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Features
- Excellent IFT stability—IR emitting diode has low degradation
- High isolation voltage—minimum 5300 VAC RMS
- Underwriters Laboratory (UL) recognized—File #E90700
- Peak blocking voltage: 400V-MOC3020
- VDE recognized (File #94766)
Specification:-
| Symbol | Parameter | Value | Unit |
| IF | Forward current | 60 | mA |
| PD | Power dissipation | 100 | mW |
| VR | Reverse Voltage | 3 | V |
| Tstg | Storage temperature range | -40 to +150 | °C |
| TOPR | Operating Temperature | -40 to +85 | °C |
| TSOL | Lead Solder Temperature | 260 for 10 sec | °C |
| ITSM | Peak Repetitive Surge Current (PW = 1 ms, 120 pps) | 1 | A |
| VDRM | Off-State Output Terminal Voltage | 250 | V |
| VISO | Isolation Surge Voltage | 7500 | Vac(pk) |
Applications
- Light dimming systems
- AC fan speed controllers
- Induction heater control
- Temperature-controlled heaters
- Motor speed control
- Programmable AC load switching
- Solid-state relay (SSR) circuits
- Home automation AC load control
- Industrial automation AC interface
- Phase-angle control circuits
- Triac/thyristor triggering in appliances
- Smart energy control systems
*Product image for illustration purposes only, actual product may vary.
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