What are the key specifications?

It features 5000Vrms isolation, a 400V peak off-state voltage, a 15mA LED trigger current, and a dV/dt rating of 1000V/µs.

What are typical applications?

Common uses include AC motor drives, lighting controls, solenoid and valve controls, and solid-state relays.

What should engineers review before use?

Ensure the LED drive current is sufficient to trigger the device (15mA) and that the load-driving triac is compatible with the non-zero-crossing switching characteristic.

What is the sourcing status?

The component is currently active and widely available, with no immediate supply risks reported.

What is the pinout of MOC3021S-TA1?

Use the MOC3021S-TA1 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about MOC3021S-TA1 pinout to locate pins, power rails, and interface signals before layout.

MOC3021S-TA1 Datasheet, Specs, Alternatives & ECAD | LITEON

AI summary

The MOC3021S-TA1 is a 400V, 15mA triac driver optocoupler in a 6-SMD package, ideal for AC load switching in industrial and consumer electronics.

Best for

AC motor control
Lighting dimming
Solid-state relay design

Avoid if

Zero-crossing switching is strictly required for noise reduction

Check before use

LED drive current capability
Triac gate current requirements

Key specifications

Isolation Voltage: 5000 Vrms
VDRM: 400 V
Trigger Current (IFT): 15 mA
Package: 6-SMD

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: 1
ECCN: -
HTSUS: -

Application

AC Motor DrivesLighting ControlsSolid State Relays

Datasheet

poYBAGJ4ZwOAEErNAAuNDg2MSRM579.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for MOC3021S-TA1: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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3D Model

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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a 1-channel, non-zero-crossing triac driver optocoupler from LITEON, designed for isolating low-voltage control circuits from high-voltage AC loads.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the MOC3021S-TA1?+×

What are the key specifications?+×

What are typical applications?+×

What should engineers review before use?+×

What is the sourcing status?+×

What is the pinout of MOC3021S-TA1?+×