What is the Additional Feature ?

Name: MOC3021
Brand: Texas Instruments
SKU: MOC3021
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments MOC3021

Part No.:: MOC3021

Manufacturer:: Texas Instruments

Package:: 6-DIP (0.300, 7.62mm)

Datasheet:: MOC3021.pdf

Description:: TRIAC OUTPUT OPTOCOUPLER

In Stock:: 3608

Quantity:: Add To Cart

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MOC3021 Specifications

Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
OutputType:
Triac
ZeroCrossingCircuit:
No
NumberofChannels:
1
Voltage-Isolation:
5300Vrms
Voltage-OffState:
400 V
StaticdV/dt(Min):
-
Current-LEDTrigger(Ift)(Max):
15mA
Current-OnState(It(RMS))(Max):
-
Current-Hold(Ih):
100µA
TurnOnTime:
-
Voltage-Forward(Vf)(Typ):
-
Current-DCForward(If)(Max):
50 mA
OperatingTemperature:
-
MountingType:
Through Hole

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MOC3021 information

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MOC3021 Typical application Circuitry

MOC3021 is a photometric optocoupler, which functions as an interface to isolate low voltage from high voltage.

Device functionality: The MOC3021 has a light-activated silicon bilateral switch that works similarly to a triac and a GaAs infrared LED. It's used to couple electrical signals while maintaining electrical isolation between input and output.

Application Arena: This device is prevalent in applications like switching AC loads, controlling motors, and light dimming, where there's a need to control high voltage with low voltage.

Inherent Features: The MOC3021 can withstand high isolation voltage, has low trigger current, and operates efficiently in various temperatures, making it suitable for robust applications.

Example Application: Controlling AC Load

1. Input Connection:

- LED Anode: Connect the anode of the internal LED (pin 1) to a current-limiting resistor and then to the positive of the control signal. Make sure that the control signal stays within the maximum forward current rating of the LED.

- LED Cathode: The cathode (pin 2) of the internal LED should be connected to the ground or negative terminal of the control signal source.

2. Output Connection:

- MT1 Connection: Pin 4 (MT1) should be connected to one terminal of the AC load. Be cautious of the load rating and ensure it's compatible with the MOC3021 specifications.

- MT2 Connection: Pin 6 (MT2) needs to be attached to an AC supply terminal. Note the polarity to avoid misconnections.

3. Power Supply:

- AC Supply: The AC supply is connected across pins 4 (MT1) and 6 (MT2) but with due consideration to the load and the ratings of the MOC3021.

4. Grounding and Safety:

- Safety Precautions: Since this device is handling AC loads, ensure the circuit is well insulated to prevent shocks and short circuits.

Key Design Considerations

1. Current Limiting:

- Resistor Value: Choose an appropriate value of the current limiting resistor to ensure the LED inside the MOC3021 is not overdriven.

2. Voltage Ratings:

- Device Rating: Always ensure the applied voltages are within the specified ratings of the MOC3021 to avoid damage and ensure longevity.

3. Thermal Management:

- Heat Dissipation: Consider adequate measures for heat dissipation, especially when the MOC3021 is controlling heavy AC loads.

4. Testing and Validation:

- Functional Testing: After setting up the circuit, conduct comprehensive tests to validate the functionality and safety of the MOC3021 application.

Basically, careful consideration is needed while integrating MOC3021, especially given its involvement in high-voltage and high-current applications. A careful configuration that complies with operating and safety requirements guarantees the device's longevity and best performance.

MOC3021 FAQ

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We have a professional and experienced quality control team to strictly verify and test the MOC3021. All suppliers must pass our qualification reviews before they can publish their products including MOC3021 on icwhale.com; we pay more attention to the channels and quality of MOC3021 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MOC3021 price and inventory displayed accurate?

The price and inventory of MOC3021 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of MOC3021?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MOC3021 we delivered, we will accept the replacement or return of the MOC3021 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MOC3021.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations