What is the Additional Feature ?

Name: MOC3021S-TA1
Brand: Lite-On Inc.
SKU: MOC3021S-TA1
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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Lite-On Inc. MOC3021S-TA1

Part No.:: MOC3021S-TA1

Manufacturer:: Lite-On Inc.

Package:: 6-SMD, Gull Wing

Datasheet:: MOC3021S-TA1.pdf

Description:: OPTOISOLATOR 5KV TRIAC 6SMD

In Stock:: 3250

Quantity:: Add To Cart

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MOC3021S-TA1 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MOC3021S-TA1 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for MOC3021S-TA1 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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MOC3021S-TA1 Typical application Circuitry

MOC3021S-TA1

The MOC3021S-TA1 is an optoisolator device comprising a light-emitting diode (LED) and a photosensitive silicon bilateral switch, designed to provide electrical isolation between a low-voltage input circuit and a high-voltage output circuit. This device is particularly useful for controlling AC loads with low-voltage control signals, ensuring the safety of sensitive electronic components by preventing high voltage transients from affecting the low-voltage side.

Application Scenarios

The MOC3021S-TA1 is widely used in applications such as solid-state relays (SSRs), motor control circuits, lighting control systems, and various types of industrial automation. Its primary function is to enable safe communication between microcontrollers or digital logic circuits and high-voltage AC power loads.

Parameter Features

Key features of the MOC3021S-TA1 include its high input-to-output isolation voltage, which is crucial for protecting control circuits from high voltage spikes. It also has the capability to drive an external triac, allowing for the control of larger AC loads. The MOC3021S-TA1 is designed to work with standard digital logic levels, making it easy to interface with microcontrollers and other logic devices due to its low LED trigger current.

Design Considerations

When integrating the MOC3021S-TA1 into circuit designs, several critical factors should be taken into account:

- Isolation Efficiency: Ensuring that the MOC3021S-TA1 provides sufficient electrical isolation to protect the control circuitry from high voltage transients.

- LED Drive Configuration: The input circuit must be carefully designed to activate the LED within the MOC3021S-TA1, typically involving the selection of a suitable series resistor to limit the LED current to a safe level.

- External Triac Selection: Choosing an external triac that matches the output characteristics of the MOC3021S-TA1 and can handle the intended load's current and voltage requirements is essential.

- Thermal Management: Considering how to dissipate heat from the external triac is crucial to ensure reliable operation under all expected load conditions.

Solid-State Relay (SSR) Circuit Design Example

A practical application for the MOC3021S-TA1 involves designing a solid-state relay for AC load control:

- Input Stage Configuration: Connect the control signal to the anode and cathode of the internal LED in the MOC3021S-TA1. A series resistor should be connected to the anode to control the current flowing through the LED, ensuring it operates within the specified limits.

- Output Stage Activation: The light from the LED activates the photosensitive silicon bilateral switch, which then triggers an external power triac connected to the MOC3021S-TA1's output pins. It is crucial to accurately identify the output pins and ensure proper connection to the gate of the external triac.

- External Triac Connection: Connect the AC load in series with one of the main terminals of the external triac, with the other terminal connected to the AC supply line. The MOC3021S-TA1 controls the gate of the external triac, thereby regulating the power supplied to the AC load.

- Zero Crossing Feature Utilization: If the MOC3021S-TA1 includes a zero-crossing circuit, use it to minimize electrical noise and extend the lifespan of the external triac and the load by switching the AC load at the zero point of the AC cycle.

Designing this SSR circuit requires careful consideration of the load's specifications to ensure that the chosen external triac is capable of handling the load's voltage and current requirements. Additionally, selecting the appropriate value for the series resistor for the LED and any gate resistor for the triac is crucial for the reliable and safe operation of the SSR.

MOC3021S-TA1 information

MOC3021S-TA1 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
MOC302x
ProductStatus:
Active
OutputType:
Triac
ZeroCrossingCircuit:
No
NumberofChannels:
1
Voltage-Isolation:
5000Vrms
Voltage-OffState:
400 V
StaticdV/dt(Min):
1kV/µs
Current-LEDTrigger(Ift)(Max):
15mA
Current-OnState(It(RMS))(Max):
-
Current-Hold(Ih):
250µA (Typ)
TurnOnTime:
-
Voltage-Forward(Vf)(Typ):
1.15V
Current-DCForward(If)(Max):
50 mA
OperatingTemperature:
-40°C ~ 100°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of MOC3021S-TA1?

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 MOC3021S-TA1 we delivered, we will accept the replacement or return of the MOC3021S-TA1 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 MOC3021S-TA1.

(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