MOC3010 Equivalent & Substitute Parts

Part Overview

The MOC3010 is an optoisolator with triac output designed for galvanic isolation applications requiring 5300Vrms isolation voltage. This component features a single channel configuration in a 6-DIP through-hole package and is classified as obsolete. Due to its obsolete status, identifying functionally compatible substitute parts is essential for ongoing system maintenance and new design implementations where this isolation topology is required.

Substiute Parts

MOC3010

onsemiIn Stock: 18572MOC3010 Datasheet

Current PartRFQ

MOC3010M

onsemiIn Stock: 6728MOC3010M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC3010 is determined by the following critical parameters:

• Output Type: Must be Triac output for direct functional replacement
• Number of Channels: Single channel configuration required
• Package / Case: 6-DIP (0.300", 7.62mm) for mechanical and electrical compatibility
• Mounting Type: Through Hole for PCB integration compatibility
• Voltage - Isolation: Minimum 4170Vrms acceptable for applications where the original 5300Vrms specification can be met by lower-rated alternatives
• Voltage - Off State: 250 V compatibility
• Current - LED Trigger (Ift) (Max): 15mA maximum
• Current - Hold (Ih): 100µA specification

The MOC3010M qualifies as a direct substitute based on these parameters, with the primary trade-off being reduced isolation voltage (4170Vrms versus 5300Vrms).

Parameter Comparison

Engineering Selection Recommendations

The MOC3010M is the qualified substitute for the obsolete MOC3010 based on the following factors:

• Product Availability: MOC3010M maintains active production status with documented inventory, whereas MOC3010 is obsolete
• Compliance: MOC3010M is ROHS3 compliant, meeting current regulatory requirements
• Electrical Compatibility: Both devices share identical triac output topology, single-channel configuration, and matching trigger current specifications (15mA maximum)
• Mechanical Compatibility: Identical 6-DIP package and through-hole mounting ensure direct PCB substitution without layout modifications
• Isolation Voltage Trade-off: MOC3010M provides 4170Vrms isolation versus the original 5300Vrms. This reduction is acceptable for applications where the lower isolation rating meets system requirements
• Forward Current: MOC3010M supports 60mA maximum forward current compared to 50mA in the original, providing improved LED drive capability

Selection of MOC3010M requires verification that the 4170Vrms isolation voltage is sufficient for the intended application. If the full 5300Vrms isolation is mandatory, alternative optoisolator families must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can MOC3010M directly replace MOC3010 in existing designs?

A: MOC3010M is mechanically and electrically compatible for direct PCB substitution. The primary consideration is isolation voltage: MOC3010M is rated at 4170Vrms versus the original 5300Vrms. If your application requires the full 5300Vrms isolation specification, MOC3010M is not suitable. If your system operates within 4170Vrms isolation requirements, MOC3010M is a direct replacement.

Q: What is the significance of the isolation voltage difference?

A: Isolation voltage determines the maximum voltage differential that can be safely applied across the optoisolator's isolation barrier. MOC3010 supports 5300Vrms; MOC3010M supports 4170Vrms. The lower rating in MOC3010M does not affect functionality in applications where isolation requirements are 4170Vrms or lower. Applications requiring higher isolation must use alternative components.

Q: Are there any package or pinout differences?

A: No. Both MOC3010 and MOC3010M use identical 6-DIP (0.300", 7.62mm) packages with through-hole mounting. No PCB layout modifications are required for substitution.

Q: What compliance advantages does MOC3010M offer?

A: MOC3010M is ROHS3 compliant and maintains active production status. MOC3010 is obsolete and does not specify RoHS compliance. For new designs and long-term supply chain stability, MOC3010M is the preferred choice.

Q: Are the trigger current specifications identical?

A: Yes. Both devices specify 15mA maximum LED trigger current (Ift) and 100µA hold current (Ih). Control circuit design remains unchanged between the two parts.

Q: What is the difference in forward current ratings?

A: MOC3010 supports 50mA maximum DC forward current; MOC3010M supports 60mA. This difference is not a limitation for substitution—MOC3010M provides additional LED drive capability without requiring circuit modifications.