MOC3061FM Optoisolator Triac Output - Equivalent & Substitute Parts

Part Overview

The MOC3061FM is a 7.5kV isolation optoisolator with triac output manufactured by onsemi in 6-SMD surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MOC3061FM features a single-channel triac output with zero-crossing detection, designed for AC switching applications requiring high isolation voltage.

Substiute Parts

MOC3061FM

onsemiIn Stock: 825MOC3061FM Datasheet

Current PartRFQ

MOC3061SM

onsemiIn Stock: 12747MOC3061SM Datasheet

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EL3061

Everlight Electronics Co LtdIn Stock: 60320EL3061 Datasheet

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EL3062

Everlight Electronics Co LtdIn Stock: 1472EL3062 Datasheet

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EL3063

Everlight Electronics Co LtdIn Stock: 153793EL3063 Datasheet

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Q3062

QT Brightek (QTB)In Stock: 955Q3062 Datasheet

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Q3063

QT Brightek (QTB)In Stock: 737Q3063 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3061FM is determined by the following critical parameters:

• Output Type: Triac output required
• Voltage - Isolation: Minimum 7500Vpk or equivalent rms rating
• Number of Channels: Single channel
• Zero Crossing Circuit: Required
• Voltage - Off State: 600 V
• Current - LED Trigger (Ift): Maximum 15mA
• Current - DC Forward (If): Maximum 60 mA
• Mounting Type: Surface mount preferred for direct replacement; through-hole alternatives acceptable for redesign scenarios

The MOC3061SM from onsemi provides the closest direct substitute with surface mount packaging. Everlight Electronics (EL3061, EL3062, EL3063) and QT Brightek (Q3062, Q3063) alternatives offer through-hole 6-DIP packaging with 5000Vrms isolation ratings, suitable for applications where isolation voltage requirements are 5kV or lower and board redesign is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Direct Surface Mount Replacement: MOC3061SM is the recommended substitute for direct board-level replacement. It maintains onsemi manufacturing, surface mount 6-SMD packaging, and active product status. The isolation voltage rating of 4170Vrms is lower than the MOC3061FM's 7500Vpk; this substitute is suitable only for applications with isolation requirements of 4170Vrms or lower.

Through-Hole Alternatives for Redesign: EL3061, EL3062, EL3063 (Everlight) and Q3062, Q3063 (QT Brightek) are suitable substitutes when board redesign is acceptable. All feature 5000Vrms isolation voltage, zero-crossing detection, and active product status with RoHS3 compliance. These parts require PCB layout modification due to 6-DIP through-hole packaging.

Isolation Voltage Consideration: Applications requiring the full 7500Vpk isolation of the MOC3061FM cannot be directly substituted with the listed alternatives, as all substitutes provide 4170Vrms to 5000Vrms isolation. Verify application isolation voltage requirements before selection.

Compliance and Certifications: MOC3061SM carries UL approval. Everlight parts (EL3061, EL3062, EL3063) carry multiple certifications (CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL). QT Brightek parts (Q3062, Q3063) carry UR and VDE certifications. Select based on required regulatory approvals for your application.

Frequently Asked Questions (FAQ)

Q: Can MOC3061SM directly replace MOC3061FM without PCB modification?

A: Yes, MOC3061SM uses identical 6-SMD surface mount packaging and pinout. However, the isolation voltage is reduced from 7500Vpk to 4170Vrms. Verify your application isolation requirements before substitution.

Q: What is the difference between the Everlight EL3061, EL3062, and EL3063 models?

A: All three Everlight models share identical isolation voltage (5000Vrms), packaging (6-DIP), and mounting type (through-hole). The primary difference is the LED trigger current: EL3061 requires 15mA maximum, EL3062 requires 10mA maximum, and EL3063 requires 5mA maximum. Select based on your input drive circuit current capability.

Q: What is the difference between QT Brightek Q3062 and Q3063?

A: Both Q3062 and Q3063 feature 5000Vrms isolation and 6-DIP through-hole packaging. Q3062 requires 10mA maximum LED trigger current, while Q3063 requires 5mA maximum. Selection depends on input drive circuit specifications.

Q: Can I use a through-hole substitute (EL306x or Q306x series) in place of the surface mount MOC3061FM?

A: Through-hole substitutes require PCB redesign and cannot be used as direct drop-in replacements. They are suitable only for new designs or boards undergoing layout revision. All through-hole alternatives provide 5000Vrms isolation, which is lower than the MOC3061FM's 7500Vpk rating.

Q: Which substitute offers the best compliance certifications?

A: Everlight EL3061, EL3062, and EL3063 carry the broadest certification coverage (CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL). Select this family if multiple regulatory approvals are required.

Q: Is the MOC3061FM truly obsolete, or can it still be sourced?

A: The MOC3061FM is classified as obsolete by onsemi. While inventory may exist through component distributors, active product substitutes are recommended for new designs and long-term production continuity.