MOC3033SR2VM Equivalent & Substitute Parts

Part Overview

The MOC3033SR2VM is a 4.17kV isolation optoisolator with triac output manufactured by onsemi. This component integrates an LED input stage with a triac output stage, featuring zero-crossing detection for AC switching applications. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

MOC3033SR2VM

onsemiIn Stock: 1109MOC3033SR2VM Datasheet

Current PartRFQ

MOC3033SVM

Fairchild SemiconductorIn Stock: 4540MOC3033SVM Datasheet

DirectRFQ

VO3063-X017T

Vishay Semiconductor Opto DivisionIn Stock: 3383VO3063-X017T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3033SR2VM is determined by the following critical parameters:

Direct Equivalence Criteria:

• Output Type: Triac
• Zero Crossing Circuit: Yes
• Number of Channels: 1
• Package / Case: 6-SMD, Gull Wing
• Mounting Type: Surface Mount
• Current - LED Trigger (Ift) (Max): 5mA
• Voltage - Forward (Vf) (Typ): 1.25V
• Current - DC Forward (If) (Max): 60 mA

Isolation Voltage Consideration: The MOC3033SR2VM operates at 4170Vrms isolation. Substitute parts meeting or exceeding this isolation voltage are acceptable for direct replacement.

Substitute Parts Identified:

1. MOC3033SVM (Fairchild Semiconductor) - Direct equivalent with identical electrical specifications and active product status
2. VO3063-X017T (Vishay Semiconductor Opto Division) - Similar substitute with enhanced isolation voltage (5300Vrms) and improved performance characteristics

Parameter Comparison

Engineering Selection Recommendations

MOC3033SVM (Fairchild Semiconductor) is the primary substitute for MOC3033SR2VM. This part maintains identical electrical specifications and packaging, with the advantage of active product status ensuring continued availability and supply chain support. Both parts carry equivalent regulatory approvals (IEC/EN/DIN, UL).

VO3063-X017T (Vishay Semiconductor Opto Division) serves as an alternative substitute with enhanced performance characteristics. This part exceeds the isolation voltage requirement (5300Vrms vs. 4170Vrms), provides improved static dV/dt rating (1.5kV/µs vs. 1kV/µs), and extends the operating temperature range (-55°C ~ 100°C vs. -40°C ~ 85°C). The VO3063-X017T carries different regulatory approvals (cUR, UR, VDE) and is RoHS3 compliant. Selection of this part is appropriate for applications requiring enhanced isolation margin or extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can MOC3033SVM directly replace MOC3033SR2VM without circuit modification?

A: Yes. MOC3033SVM is a direct equivalent with identical electrical specifications, isolation voltage, trigger current, forward voltage, and package configuration. No circuit modifications are required.

Q: What are the advantages of using VO3063-X017T over MOC3033SVM?

A: VO3063-X017T provides higher isolation voltage (5300Vrms vs. 4170Vrms), faster dV/dt capability (1.5kV/µs vs. 1kV/µs), lower hold current (200µA vs. 400µA), and extended operating temperature range (-55°C to 100°C vs. -40°C to 85°C). These characteristics make it suitable for demanding applications requiring additional safety margin or wider temperature operation.

Q: Are there packaging differences between these substitutes?

A: All three parts use identical 6-SMD, Gull Wing surface mount packaging. They are mechanically and electrically compatible for PCB layout purposes.

Q: What regulatory approvals apply to each part?

A: MOC3033SR2VM and MOC3033SVM carry IEC/EN/DIN and UL approvals. VO3063-X017T carries cUR, UR, and VDE approvals. Selection should align with application-specific regulatory requirements.

Q: Is VO3063-X017T suitable for all applications using MOC3033SR2VM?

A: VO3063-X017T is suitable for applications where the enhanced isolation voltage, improved dV/dt rating, and extended temperature range provide value. The lower hold current may affect circuit timing in applications with marginal LED drive current. Verify circuit compatibility before substitution.

Q: What is the inventory status of these parts?

A: MOC3033SR2VM (1024 pcs), MOC3033SVM (4450 pcs), and VO3063-X017T (3300 pcs) are available as new original stock.