MOC3063 IC is a 6 pin I/O Optocoupler/Optoisolator with an integrated gallium arsenide Infrared emitting diode optically coupled to a TRIAC output with a Zero-crossing circuit. The IC can provide optical isolation to devices operating at 115/240 VAC lines. This IC is widely used in applications such as AC motor drives, controlling the Valves or solenoids, etc.
Features and Specifications
| Attribute | Value |
| Number of Outputs | 1 |
| Isolation Voltage(rms) | 5000V |
| RMS On-State Current(It(rms)) | 100mA |
| Forward Current | 60mA |
| Peak Repetitive Off?State Voltage(Vdrm) | 600V |
| Static dv/dt | 1000V/us |
| Forward Voltage | 1.5V |
| Zero Crossing Circuit | Internal oscillator included |
| SCR Type | Two-way thyristor |
| Operating Temperature | -40℃~+85℃ |
MOC3063 Pinout Configuration
The IC has 6 I/O pins. The table and the image below can be used as a reference to the pinout and the internal circuitry of the IC.
| Pin Number | Pin Type |
| 1 | Anode |
| 2 | Cathode |
| 3 | NC(Not Connected) |
| 4 | Main Terminal |
| 5 | Substrate(Do not connect) |
| 6 | Main Terminal |
The image above shows how pins are internally connected in the IC. The 1 and 2 pins consist of the anode and cathode of the infrared emitting diode. Pin 4 and 6 contain the TRIAC with the Zero Crossing circuit. Pin 3 and 5 are to be left floating in the circuit.
Working
An Optoisolator or Optocoupler has different types; phototransistor type, photodarlington transistor type, photo TRIAC type, and a photo SCR type. In this description, we are considering a photo TRIAC type OC/OI. PhotoTriac and photo SCR are generally used for AC or high power circuits.
A typical circuit is shown can be used for AC applications where hotline switching is required, here a variant of MOC306X optocoupler IC is used which serves the same purpose as MOC3063.
Applications
Here are some of the applications of an Optocoupler/Opto-Isolator.
- AC motor drives
- Light controls
- Valve/Solenoid Controls
- Temperature controllers
2D Model
Below is the 2-D model of the MOC3063 optocoupler IC along with its dimensions in inches and millimeter, the following information can be used for designing custom footprints of the IC which can be used for PCB designing and CAD modelling.
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