MOC3041FR2M Equivalent & Substitute Parts

Part Overview

The MOC3041FR2M is a 7.5kV isolation optoisolator with triac output manufactured by onsemi. This component is designed for applications requiring galvanic isolation between control and power circuits, featuring a single channel with zero-crossing detection capability. The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MOC3041FR2M

onsemiIn Stock: 944MOC3041FR2M Datasheet

Current PartRFQ

MOC3041SR2M

onsemiIn Stock: 22847MOC3041SR2M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MOC3041FR2M is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Output Type: Triac (required for control circuit functionality)
• Number of Channels: 1 (required for single-channel isolation)
• Mounting Type: Surface Mount (required for PCB assembly compatibility)
• Package / Case: 6-SMD, Gull Wing (required for footprint compatibility)
• Zero Crossing Circuit: Yes (required for AC switching applications)
• Current - LED Trigger (Ift) (Max): 15mA (required for driver circuit compatibility)
• Current - Hold (Ih): 400µA (Typ) (required for holding current specifications)
• Current - DC Forward (If) (Max): 60 mA (required for LED drive current compatibility)

Allowable Variation Parameters:

• Voltage - Isolation: The MOC3041FR2M specifies 7500Vpk. Substitute parts with lower isolation voltage ratings (such as 4170Vrms) are acceptable when system isolation requirements do not mandate the higher rating.
• Voltage - Off State: 400 V is standard across the MOC304 series.
• Product Status: Active status is preferred for long-term availability, though obsolete parts may serve as references.

Parameter Comparison

Engineering Selection Recommendations

The MOC3041SR2M serves as the active equivalent for the obsolete MOC3041FR2M within the MOC304 base product family. Both components share identical electrical characteristics for LED trigger current, hold current, DC forward current, and off-state voltage. The primary difference is isolation voltage rating: the MOC3041FR2M provides 7500Vpk isolation, while the MOC3041SR2M provides 4170Vrms isolation.

Selection between these parts depends on system isolation voltage requirements. If the application circuit operates within 4170Vrms isolation specifications, the MOC3041SR2M is the appropriate choice due to its active product status and current availability. The MOC3041SR2M includes additional documented specifications including static dV/dt rating (1kV/µs), forward voltage (1.25V typical), and operating temperature range (-40°C to 85°C), providing enhanced design documentation.

The MOC3041SR2M carries RoHS3 compliance and UL approval, meeting modern regulatory requirements for industrial and consumer applications. For designs requiring the higher 7500Vpk isolation specification of the MOC3041FR2M, alternative optoisolator families within the onsemi portfolio should be evaluated, as no direct active substitute with identical isolation voltage is provided in this comparison set.

Frequently Asked Questions (FAQ)

Q: Can MOC3041SR2M replace MOC3041FR2M in existing designs?

A: Substitution is valid when the application isolation voltage requirement does not exceed 4170Vrms. Both components maintain identical LED trigger current (15mA max), hold current (400µA typical), and DC forward current (60mA max) specifications. The 6-SMD gull wing package and single-channel triac output are identical, enabling direct PCB footprint compatibility.

Q: What is the isolation voltage difference between these parts?

A: The MOC3041FR2M specifies 7500Vpk isolation voltage, while the MOC3041SR2M specifies 4170Vrms isolation voltage. These represent different measurement standards (peak versus RMS). Selection depends on the maximum isolation voltage required by the application circuit. If the design requires 7500Vpk isolation, the MOC3041SR2M does not meet this specification.

Q: Why is MOC3041FR2M obsolete?

A: The MOC3041FR2M is classified as obsolete by onsemi. The MOC3041SR2M represents the current active product within the MOC304 optoisolator family and is the recommended choice for new designs and ongoing production support.

Q: Are there packaging differences between these parts?

A: Both components use identical 6-SMD gull wing surface mount packaging. The MOC3041SR2M is supplied in Cut Tape (CT) and Digi-Reel packaging formats, supporting both manual and automated assembly processes.

Q: What compliance certifications apply to these parts?

A: The MOC3041SR2M carries UL approval and RoHS3 compliance certification. The MOC3041FR2M compliance documentation is not specified in available data. For applications requiring specific regulatory certifications, the MOC3041SR2M meets current industrial standards.