TRIAC OUTPUT OPTOCOUPLER MOC3021 is a non-zero crossing-based optoisolator consists of gallium arsenide infrared emitting diodes,
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Aug 4, 2021
Stevan
Optocoupler/Optoisolator Tutorial | PC817 MOC3021 | How to use? | Pinout
TRIAC OUTPUT OPTOCOUPLER
MOC3021 is a non-zero crossing-based optoisolator consists of gallium arsenide infrared emitting diodes, optically coupled to a silicon-based triac. This article enforces pinout, datasheet, circuit, and other details about MOC3021.
MOC3021
The MOC3021 is a Zero-Crossing TRIAC driven Optocoupler or Optoisolator. As we know the term Optocoupler/optoisolator means the same that is we use light to indirectly coupled to sets of circuits. The specialty of MOC3021 is that it has Zero-Crossing ability and is driven by a Triac.
400 V Phototriac Driver Output
Gallium-Arsenide-Diode Infrared Source and Optically-Coupled Silicon Traic Driver (Bilateral Switch)
UL Recognized . . . File Number E65085
High Isolation . . . 7500 V Peak
Output Driver Designed for 220 Vac
Standard 6-Terminal Plastic DIP
Directly Interchangeable with Motorola MOC3020, MOC3021, MOC3022, and MOC3023
Rochester Electronics, LLC MOC3021 technical specifications, attributes, parameters and parts with similar specifications to Rochester Electronics, LLC MOC3021.
Rochester Electronics, LLC MOC3021 technical specifications, attributes, parameters and parts with similar specifications to Rochester Electronics, LLC MOC3021.
| Product Attribute | Attribute Value | |
|---|---|---|
| Mounting Type | Through Hole | |
| Package / Case | 6-DIP (0.300, 7.62mm) | |
| Current-Hold(Ih) | 100μA | |
| Current-LED Trigger(Ift)(Max) | 15mA | |
| Number of Elements | 1 Element | |
| Operating Temperature (Min.) | -40°C | |
| Voltage-Off State | 400V | |
| Zero-Crossing Circuit | No |
| Product Attribute | Attribute Value | |
|---|---|---|
| Packaging | Tube | |
| JESD-609 Code | e0 | |
| Pbfree Code | no | |
| Part Status | Obsolete | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Terminal Finish | TIN LEAD | |
| Additional Feature | UL RECOGNIZED | |
| Voltage - Isolation | 5300Vrms |
| Product Attribute | Attribute Value | |
|---|---|---|
| Output Type | Triac | |
| Configuration | SINGLE | |
| Number of Channels | 1Channel | |
| Forward Current-Max | 0.05A | |
| Current - DC Forward (If) (Max) | 50mA | |
| Input Trigger Current-Nom | 8mA | |
| RoHS Status | Non-RoHS Compliant |
Symbol
Footprint
Solenoid/Valve Controls
Lamp Ballasts
Interfacing Microprocessors to 115/240 Vac Peripherals
Motor Controls
Incandescent Lamp Dimmers
The MOC3021 is normally used to control the AC appliance, such as the brightness of the bulb, the speed of the motor, etc. Either way, due to its limited current rating, an optocoupler will not be allowed to drive loads directly.
The MOC3021 can be used to switch loads by just turning the LED on or off, or we can also use PWM signals to switch the LED and thus the TRIAC. When we switch the TRIAC using PWM signals then the output voltage across the load can be controlled thus controlling the speed/brightness of the load.
Rochester Electronics is the largest continuing source manufacturer of semiconductors in the world. With product licensing from leading manufacturers such as Analog Devices, Altera, Cypress, Fairchild, Freescale, Infineon, Intel, NXP, Renesas, and Texas Instruments, Rochester continues to manufacture and distribute mature products. For industrial, transportation, and hi-reliability markets, this extension of the product life is critical for long-term production and maintenance. With over 100,000 products and 15 billion units in stock, no other company compares to our selection, capabilities, or solutions.
Download datasheets and manufacturer documentation for Rochester Electronics, LLC MOC3021.
Download datasheets and manufacturer documentation for MOC3021
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