MOC3163TM Equivalent & Substitute Parts

Part Overview

The MOC3163TM is a 4.17 kV optoisolator with triac output in 6-DIP packaging, manufactured by onsemi. This component features a zero-crossing circuit and is designed for high-voltage isolation applications requiring single-channel triac switching. The MOC3163TM is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain compatibility across isolation voltage, output type, package configuration, and electrical characteristics to ensure functional equivalence in circuit applications.

Substiute Parts

MOC3163TM

onsemiIn Stock: 5129MOC3163TM Datasheet

Current PartRFQ

MOC3163TVM

onsemiIn Stock: 5385MOC3163TVM Datasheet

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EL3061M

Everlight Electronics Co LtdIn Stock: 1029EL3061M Datasheet

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EL3062M

Everlight Electronics Co LtdIn Stock: 967EL3062M Datasheet

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EL3063M

Everlight Electronics Co LtdIn Stock: 1660EL3063M 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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VO3063-X006

Vishay Semiconductor Opto DivisionIn Stock: 1843VO3063-X006 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3163TM is determined by the following critical parameters:

Primary Compatibility Criteria:

• Output Type: Triac (mandatory)
• Zero Crossing Circuit: Yes (mandatory)
• Number of Channels: 1 (mandatory)
• Package / Case: 6-DIP (mandatory)
• Mounting Type: Through Hole (mandatory)
• Voltage - Isolation: Minimum 4170 Vrms (equal or higher acceptable)
• Voltage - Off State: 600 V (equal or higher acceptable)
• Static dV/dt (Min): 1 kV/µs (equal or higher acceptable)
• Current - LED Trigger (Ift) (Max): 5 mA or lower (equal or lower acceptable)
• Current - DC Forward (If) (Max): 60 mA (equal or higher acceptable)

Substitute parts are grouped into two categories:

Direct Substitute (Identical Specifications): MOC3163TVM maintains all electrical and mechanical parameters of the MOC3163TM with active product status and improved compliance certifications.

Similar Substitutes (Enhanced Specifications): Parts from Everlight Electronics (EL3061M, EL3062M, EL3063M), QT Brightek (Q3062, Q3063), and Vishay (VO3063-X006) meet or exceed the isolation voltage and electrical performance requirements. These parts feature higher isolation voltages (5000–5300 Vrms) and extended operating temperature ranges, providing enhanced performance margins for the same package footprint and functional topology.

Parameter Comparison

Engineering Selection Recommendations

MOC3163TVM (Direct Substitute): MOC3163TVM is the primary replacement for MOC3163TM. It maintains identical electrical specifications and package dimensions while offering active product status and ROHS3 compliance. This part is suitable for direct replacement in existing designs without circuit modification.

EL3063M (Similar Substitute): EL3063M from Everlight Electronics matches the MOC3163TM LED trigger current specification (5 mA maximum) and provides higher isolation voltage (5000 Vrms). The extended operating temperature range (-55°C to 100°C) and ROHS3 compliance make this part suitable for applications requiring enhanced thermal performance. Package dimensions are identical (6-DIP 0.400", 10.16 mm).

VO3063-X006 (Similar Substitute): VO3063-X006 from Vishay offers the highest isolation voltage (5300 Vrms) and improved static dV/dt rating (1.5 kV/µs). This part is suitable for applications requiring maximum isolation margin and faster transient response. Package dimensions match the MOC3163TM (6-DIP 0.400", 10.16 mm).

Q3063 (Similar Substitute with Package Consideration): Q3063 from QT Brightek provides equivalent electrical performance with 5000 Vrms isolation and 5 mA LED trigger current. The package footprint differs (6-DIP 0.300", 7.62 mm versus 0.400", 10.16 mm), requiring PCB layout verification before substitution.

EL3061M and EL3062M (Higher LED Trigger Current): These parts feature higher LED trigger current specifications (15 mA and 10 mA respectively) compared to the MOC3163TM (5 mA maximum). Substitution requires verification that the driving circuit can supply the increased trigger current without exceeding design limits.

Q3062 (Higher LED Trigger Current with Package Consideration): Q3062 specifies 10 mA maximum LED trigger current and uses a narrower 6-DIP package (0.300", 7.62 mm). Substitution requires both driving circuit verification and PCB layout assessment.

Frequently Asked Questions (FAQ)

Q: Can MOC3163TVM be used as a direct replacement for MOC3163TM? A: Yes. MOC3163TVM maintains identical electrical specifications, package dimensions, and functional characteristics. The primary difference is active product status and improved compliance certifications (ROHS3).

Q: What is the key difference between the MOC3163TM and higher-voltage substitutes like EL3063M or VO3063-X006? A: The MOC3163TM provides 4170 Vrms isolation, while EL3063M and VO3063-X006 provide 5000 Vrms and 5300 Vrms respectively. Higher isolation voltage provides additional safety margin but does not affect circuit functionality if the original design operates within the lower voltage specification.

Q: Are Q3062 and Q3063 compatible with the MOC3163TM package footprint? A: Q3062 and Q3063 use a narrower 6-DIP package (0.300", 7.62 mm) compared to the MOC3163TM (0.400", 10.16 mm). While the pin count and function are identical, PCB layout verification is required to confirm mechanical compatibility with existing through-hole patterns.

Q: What does LED trigger current (Ift) mean, and why does it vary among substitutes? A: LED trigger current is the maximum forward current required to activate the optoisolator's internal LED. The MOC3163TM specifies 5 mA maximum. Substitutes with higher specifications (EL3061M at 15 mA, EL3062M at 10 mA) require the driving circuit to supply additional current. Substitutes with equal or lower specifications (EL3063M, Q3063, VO3063-X006 at 5 mA) are directly compatible.

Q: Can I use a substitute with a higher operating temperature range in a design originally specified for -40°C to 85°C? A: Yes. Substitutes with extended temperature ranges (-55°C to 100°C) provide additional thermal margin and are suitable for applications with the original temperature specification. The wider range does not affect performance within the original operating window.

Q: What is the significance of the zero-crossing circuit in these optoisolators? A: The zero-crossing circuit ensures the triac output switches only when the AC line voltage crosses zero, reducing electromagnetic interference and switching stress. All listed substitutes include this feature, maintaining functional equivalence.

Q: Are all substitutes ROHS3 compliant? A: Yes. All active substitute parts (MOC3163TVM, EL3061M, EL3062M, EL3063M, Q3062, Q3063, VO3063-X006) are ROHS3 compliant. The original MOC3163TM does not specify RoHS status due to its obsolete classification.

Q: What is the difference between Voltage - Isolation and Voltage - Off State? A: Voltage - Isolation specifies the maximum DC voltage that can be applied across the optoisolator's isolation barrier without breakdown. Voltage - Off State specifies the maximum voltage the triac output can withstand in the off state. All listed parts maintain 600 V off-state voltage, with isolation voltages ranging from 4170 Vrms to 5300 Vrms.