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MOC3021 The Lite-On Inc. MOC3021 is a 6-pin DIP optocoupler with Triac output, offering 5000Vrms isolation and a 400V repetitive peak off-state voltage.
Mfr Part #:

MOC3021

Available from 4 distributors
Mfr Name: Lite-On Inc.
Lite-On Inc.
The Lite-On Inc. MOC3021 is a 6-pin DIP optocoupler with Triac output, offering 5000Vrms isolation and a 400V repetitive peak off-state voltage.
✓ Total Stock: 3,309 pcs
$ Price Range: $7.60

MOC3021 Available from 4 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MOC3021 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Current
Forward Current
Forward Voltage
Lead Spacing
Mounting Type
Number of Channels
Operating Temperature
Output Type
Static dV
Supplier Device Package
Tape & Reel
Voltage
Zero Crossing Circuit
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MOC3021 Description

Short technical summary and product information.

The MOC3021 from Lite-On Inc. is an optocoupler designed for Triac driver output applications. It features a high isolation voltage of 5000Vrms between the input and output, ensuring safety and reliability in various circuits.

 

This device has a high repetitive peak off-state voltage (VDRM) of 400V and a critical rate of rise of off-state voltage (dV/dt) of 1000V/µs. It operates with a forward current of 50mA and has a typical forward voltage of 1.2V at 50mA. The operating temperature range is from -40°C to 100°C.

 

The MOC3021 is housed in a standard 6-pin DIP package with through-hole mounting. It is suitable for applications such as AC motor drives, lighting controls, and solid-state relays where reliable isolation and Triac control are required.

 

Compliance information indicates RoHS3 compliance, MSL 1, and REACH unaffected status, though these are not verified by documentation.

MOC3021 Quick Information

Product Type: Optocoupler
Canonical Name: MOC3021 Triac Output Optocoupler
Subcategory: Triac Output

MOC3021 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MOC3021 Estimated Pricing

Qty Low High
1+ $7.60 $7.60

Estimated market price range - modelled values for guidance only, not live distributor offers.

MOC3021 Features

  • 5000Vrms input-output isolation voltage.
  • 400V repetitive peak off-state voltage.
  • Triac driver output.
  • 6-pin DIP through-hole package.
  • -40°C to 100°C operating temperature range.

MOC3021 Applications

  • Used in AC motor drives.
  • Suitable for lighting controls.
  • Applicable for solid-state relays.
  • Controls solenoid and valve systems.

MOC3021 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the MOC3021?

The isolation voltage between input and output is 5000Vrms.

What is the peak off-state voltage for the MOC3021?

The high repetitive peak off-state voltage (VDRM) is a minimum of 400V.

What type of output does the MOC3021 have?

The MOC3021 has a Triac output.

What is the operating temperature range for the MOC3021?

The operating temperature range is -40°C to 100°C.

Does the MOC3021 have a zero crossing circuit?

No, the MOC3021 does not have a zero crossing circuit.

What package is the MOC3021 supplied in?

The MOC3021 is supplied in a 6-DIP package.

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