MOC3063FM Equivalent & Substitute Parts

Part Overview

The MOC3063FM is an optoisolator with triac output manufactured by onsemi, designed for high-voltage isolation applications. It features a 7500Vpk isolation rating, single channel configuration, and surface mount 6-SMD packaging. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

MOC3063FM

onsemiIn Stock: 758MOC3063FM Datasheet

Current PartRFQ

MOC3063SM

onsemiIn Stock: 1544MOC3063SM 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 MOC3063FM is determined by the following critical parameters:

Primary Compatibility Criteria:

• Output Type: Triac
• Number of Channels: 1
• Zero Crossing Circuit: Yes
• Voltage - Off State: 600 V
• Current - LED Trigger (Ift) (Max): 5mA
• Current - Hold (Ih): 500µA (Typ)
• Current - DC Forward (If) (Max): 60 mA

Secondary Considerations:

• Voltage - Isolation: Minimum 5000Vrms (MOC3063FM operates at 7500Vpk)
• Mounting Type: Surface Mount preferred; Through Hole acceptable with board redesign
• Package compatibility: 6-SMD direct replacement; 6-DIP requires PCB layout modification

The substitute parts are grouped into two categories:

Group 1 - Direct Surface Mount Replacement: MOC3063SM (onsemi) - Same manufacturer, same package type, active product status

Group 2 - Through Hole Alternatives (Package Redesign Required): EL3061, EL3062, EL3063 (Everlight Electronics), Q3062, Q3063 (QT Brightek) - All feature 6-DIP through-hole packaging with equivalent electrical specifications

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Redesign): MOC3063SM is the primary substitute. It maintains the same surface mount 6-SMD package and onsemi manufacturer lineage. The part is active and ROHS3 compliant with UL approval. The isolation voltage is lower (4170Vrms vs. 7500Vpk), requiring verification that application requirements do not exceed this rating.

For Through-Hole Applications (PCB Redesign Required): EL3063 and Q3063 are preferred substitutes when isolation voltage of 5000Vrms is acceptable. Both parts match the 5mA LED trigger current specification of the MOC3063FM. EL3063 offers the highest inventory availability (153,745 pcs) and comprehensive international approvals (CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL). Q3063 provides VDE and UR certifications with ROHS3 compliance.

EL3062 and Q3062 are acceptable alternatives with 10mA LED trigger current specification, suitable for applications with higher input current tolerance.

EL3061 requires 15mA LED trigger current and is suitable only when input drive capability is not constrained.

All substitute parts maintain 600V off-state voltage, zero-crossing circuit functionality, and 60mA maximum DC forward current compatibility with the original MOC3063FM design.

Frequently Asked Questions (FAQ)

Q: Can MOC3063SM directly replace MOC3063FM without PCB modification? A: Yes. MOC3063SM uses identical 6-SMD surface mount packaging and pinout. However, the isolation voltage is 4170Vrms compared to MOC3063FM's 7500Vpk. Confirm that your application does not require isolation voltage exceeding 4170Vrms.

Q: What is the key difference between EL3063 and EL3062? A: Both are Everlight 6-DIP through-hole optoisolators with 5000Vrms isolation. The primary difference is LED trigger current: EL3063 requires 5mA (matching MOC3063FM), while EL3062 requires 10mA. Select based on your input drive circuit capability.

Q: Can I use a through-hole part (6-DIP) as a substitute for the surface mount MOC3063FM? A: Through-hole substitutes (EL3061, EL3062, EL3063, Q3062, Q3063) require PCB layout redesign to accommodate 6-DIP footprint instead of 6-SMD. Electrical functionality is compatible, but board-level changes are necessary.

Q: Which substitute offers the best compliance certifications? A: EL3063 provides the most comprehensive international approvals: CSA, DEMKO, FIMKO, NEMKO, SEMKO, and UL. All substitute parts are ROHS3 compliant.

Q: Is isolation voltage the limiting factor for substitution? A: Isolation voltage is a critical parameter. MOC3063FM operates at 7500Vpk. All substitute parts operate at 5000Vrms or lower. Substitution is valid only if your application isolation requirement does not exceed the substitute part's rating.

Q: What is the inventory status of available substitutes? A: MOC3063SM (1,500 pcs), EL3063 (153,745 pcs), EL3062 (1,406 pcs), EL3061 (60,255 pcs), Q3063 (638 pcs), and Q3062 (920 pcs) are all in stock as new original parts.