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MOC3061 IC Zero Cross Optoisolators Triac Drive IC
The MOC3061 is a zero-cross Triac driver optocoupler designed for safe and efficient interfacing between low-voltage digital circuits and high-voltage AC loads.
It contains an infrared LED and a light-activated phototriac, providing strong galvanic isolation between the control and AC mains circuits.
The important feature is zero-cross detection, meaning the output triac is triggered only when the AC waveform crosses zero volts. This reduces:
- Electrical noise
- EMI/RFI
- Inrush current
- Stress on the external triac and load
The MOC3061 is ideal for clean AC switching, especially in appliances requiring minimal electrical noise.
Features
- Simplifies Logic Control of 115/240 Vac Power
- Zero Voltage Crossing
- dv/dt of 1500 V/µs Typical, 600 V/µs
Specification
| Symbol | Parameter | Value | Unit |
| IF | Forward current | 60 | mA |
| PD | Power dissipation | 150 | mW |
| VR | Reverse Voltage | 6 | 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 | 600 | V |
Applications
- Home appliances AC switching
- Solid-state relays with zero-cross switching
- AC loads requiring low-noise switching
- Lamp ON/OFF control (no dimming)
- AC heaters and thermostats
- Sump pumps, solenoids, valves
- Industrial automation AC switching
- Low-EMI power controllers
- Switching resistive and inductive AC loads
- PLC-controlled AC devices
*Product image for illustration purposes only, actual product may vary.
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