MOC3041FVM Equivalent & Substitute Parts

Part Overview

The MOC3041FVM is a 7.5kV isolation optoisolator with triac output in a 6-SMD surface mount package, manufactured by onsemi. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement. The MOC3041FVM provides galvanic isolation suitable for AC power control applications requiring high voltage isolation ratings and zero-crossing detection capability.

Substiute Parts

MOC3041FVM

onsemiIn Stock: 984MOC3041FVM Datasheet

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MOC3041SVM

onsemiIn Stock: 23795MOC3041SVM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC3041FVM is determined by the following critical parameters:

• Output Type: Triac output configuration
• Package / Case: 6-SMD, Gull Wing surface mount form factor
• Number of Channels: Single channel isolation
• Zero Crossing Circuit: Presence of zero-crossing detection
• Voltage - Off State: 400 V rating
• Current - LED Trigger (Ift) (Max): 15mA maximum
• Current - Hold (Ih) (Typ): 400µA typical
• Current - DC Forward (If) (Max): 60 mA maximum
• Mounting Type: Surface Mount

The MOC3041SVM meets these core substitution criteria while maintaining mechanical and electrical compatibility within the allowed parameter ranges for this optoisolator category.

Parameter Comparison

Engineering Selection Recommendations

The MOC3041SVM is the designated substitute for the obsolete MOC3041FVM. Both components share identical mechanical packaging (6-SMD, Gull Wing), electrical trigger characteristics (15mA LED trigger current, 400µA hold current), and forward current ratings (60mA maximum). The MOC3041SVM maintains active product status with ROHS3 compliance and IEC/EN/DIN and UL approval certifications, providing superior long-term availability and regulatory support compared to the obsolete MOC3041FVM.

The primary electrical difference is the isolation voltage rating: MOC3041FVM specifies 7500Vpk while MOC3041SVM specifies 4170Vrms. Applications requiring the higher 7500Vpk isolation rating of the MOC3041FVM must evaluate whether the 4170Vrms rating of the MOC3041SVM meets system isolation requirements before substitution.

Frequently Asked Questions (FAQ)

Q: Can MOC3041SVM directly replace MOC3041FVM in existing designs?

A: Direct replacement is possible from a mechanical and package perspective. Both components use identical 6-SMD, Gull Wing surface mount packaging and share the same trigger current (15mA), hold current (400µA), and forward current (60mA) specifications. However, the isolation voltage rating differs: MOC3041FVM is rated at 7500Vpk while MOC3041SVM is rated at 4170Vrms. Substitution is valid only if the application isolation requirements are met by the 4170Vrms rating.

Q: What is the difference between 7500Vpk and 4170Vrms isolation ratings?

A: These represent different measurement standards for isolation voltage. Peak voltage (Vpk) and RMS voltage (Vrms) are distinct specifications. The MOC3041FVM specifies peak isolation voltage while MOC3041SVM specifies RMS isolation voltage. System designers must confirm that the 4170Vrms rating of the MOC3041SVM satisfies the isolation requirements of applications originally designed for the 7500Vpk MOC3041FVM.

Q: Are there any compliance or certification differences?

A: The MOC3041SVM carries active product status with ROHS3 compliance and IEC/EN/DIN and UL certifications. The MOC3041FVM is classified as obsolete. The MOC3041SVM provides superior regulatory support and long-term availability for new designs and ongoing production.

Q: Is the packaging identical between these parts?

A: Yes. Both MOC3041FVM and MOC3041SVM use 6-SMD, Gull Wing surface mount packaging with identical pin configurations and footprints, enabling direct PCB layout compatibility.

Q: What are the key electrical parameters that must match for substitution?

A: Critical matching parameters include output type (Triac), number of channels (1), zero-crossing circuit presence (Yes), voltage off-state rating (400V), LED trigger current (15mA maximum), hold current (400µA typical), and forward current (60mA maximum). The MOC3041SVM meets all these specifications.