MOC3022FR2M Equivalent & Substitute Parts

Part Overview

The MOC3022FR2M is a 7.5kV peak isolation optoisolator with triac output manufactured by onsemi in a 6-SMD surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The MOC3022FR2M serves applications requiring high-voltage isolation with triac-driven load switching in compact surface mount form factors.

Substiute Parts

MOC3022FR2M

onsemiIn Stock: 46272MOC3022FR2M Datasheet

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MOC3022SR2M

onsemiIn Stock: 17378MOC3022SR2M Datasheet

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EL3021

Everlight Electronics Co LtdIn Stock: 66589EL3021 Datasheet

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EL3022

Everlight Electronics Co LtdIn Stock: 24994EL3022 Datasheet

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EL3023

Everlight Electronics Co LtdIn Stock: 83402EL3023 Datasheet

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IS3020G

Isocom Components 2004 LTDIn Stock: 751IS3020G Datasheet

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IS3021G

Isocom Components 2004 LTDIn Stock: 1143IS3021G Datasheet

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IS3022G

Isocom Components 2004 LTDIn Stock: 863IS3022G Datasheet

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MOC3020

onsemiIn Stock: 19292MOC3020 Datasheet

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MOC3021

onsemiIn Stock: 247566MOC3021 Datasheet

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MOC3022

onsemiIn Stock: 67862MOC3022 Datasheet

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MOC3023

onsemiIn Stock: 231621MOC3023 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3022FR2M is determined by the following critical parameters:

Isolation Voltage: The main part specifies 7500Vpk isolation. Substitute parts must maintain isolation voltage at or above this level to ensure electrical safety and regulatory compliance.

Output Type: All substitutes must feature triac output to maintain functional compatibility with existing circuit designs.

Number of Channels: Single-channel configuration is required for direct substitution.

Mounting Type & Package: The original part uses surface mount (SMD) packaging. Substitutes may use through-hole (DIP) packaging if circuit board layout permits redesign.

Current Specifications: LED trigger current (Ift), hold current (Ih), and forward current (If) must be compatible with the driving and load circuits.

Product Status & Compliance: Active product status is preferred for long-term availability. RoHS3 compliance and regulatory certifications (UL, CSA, etc.) ensure suitability for modern applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Same Mounting Type): MOC3022SR2M is the direct surface mount equivalent from onsemi. It maintains the 6-SMD gull wing package and is currently active. However, the isolation voltage is specified as 4170Vrms, which is lower than the original 7500Vpk. This part is suitable only if the application circuit can tolerate reduced isolation voltage.

Alternative Substitutes (Through-Hole Packages): EL3021, EL3022, and EL3023 from Everlight Electronics are active products with 5000Vrms isolation voltage and 6-DIP through-hole packages. These require circuit board redesign but offer superior product status and full RoHS3 compliance with multiple regulatory certifications (UL, CSA, DEMKO, FIMKO, NEMKO, SEMKO). EL3023 features the lowest LED trigger current (5mA), while EL3021 requires 15mA.

Isocom Alternatives: IS3020G, IS3021G, and IS3022G provide 5300Vrms isolation in 6-DIP packages with 10.16mm body width. These are active products with RoHS3 compliance. IS3022G matches the original 10mA LED trigger current specification.

onsemi DIP Options: MOC3020, MOC3021, and MOC3022 are obsolete onsemi products in 6-DIP packages with 5300Vrms isolation. These maintain onsemi compatibility but lack active product status and modern compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can MOC3022SR2M directly replace MOC3022FR2M?

A: MOC3022SR2M maintains the same surface mount package and onsemi manufacturer, but specifies 4170Vrms isolation versus the original 7500Vpk. Substitution is valid only if the application circuit design permits operation at the lower isolation voltage rating.

Q: What is the difference between the Everlight EL3021, EL3022, and EL3023 parts?

A: All three are 5000Vrms optoisolators in 6-DIP packages with identical isolation voltage and off-state voltage. The primary difference is LED trigger current: EL3021 requires 15mA maximum, EL3022 requires 10mA maximum, and EL3023 requires 5mA maximum. Selection depends on the available drive current from the control circuit.

Q: Why do Isocom parts (IS3020G, IS3021G, IS3022G) have different package dimensions than Everlight parts?

A: Isocom 6-DIP packages measure 0.400" (10.16mm) body width, while Everlight and onsemi DIP packages measure 0.300" (7.62mm). Both are standard 6-pin DIP configurations but with different physical dimensions. Circuit board layout must accommodate the selected package size.

Q: Are the obsolete onsemi DIP parts (MOC3020, MOC3021, MOC3022) suitable for new designs?

A: Obsolete products are not recommended for new designs due to uncertain long-term availability and lack of current compliance documentation. Active alternatives from Everlight or Isocom are preferred for production designs requiring long-term supply assurance.

Q: What isolation voltage should I select for my application?

A: The original MOC3022FR2M specifies 7500Vpk isolation. Substitute parts offer lower isolation ratings: MOC3022SR2M at 4170Vrms, Everlight parts at 5000Vrms, and Isocom/onsemi DIP parts at 5300Vrms. Selection must match or exceed the isolation voltage requirement of your specific application circuit.

Q: Can I use a through-hole DIP package part as a substitute for the surface mount MOC3022FR2M?

A: Through-hole DIP packages require different circuit board footprints and assembly processes compared to surface mount SMD packages. Substitution is technically possible but requires circuit board redesign and assembly process changes. Evaluate cost and schedule impact before proceeding.

Q: Which substitute part offers the best compliance and certification coverage?

A: Everlight EL3021, EL3022, and EL3023 parts provide the most comprehensive regulatory approvals, including UL, CSA, DEMKO, FIMKO, NEMKO, and SEMKO certifications, combined with ROHS3 compliance. These are recommended for applications requiring extensive regulatory documentation.