MOC3023 Optoisolator Triac Output - Equivalent & Substitute Parts

Part Overview

The MOC3023 is a 6-DIP optoisolator with triac output, designed for galvanic isolation applications requiring 5300Vrms isolation voltage. This component features a single channel with triac output topology and no zero-crossing circuit. The MOC3023 is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

MOC3023

onsemiIn Stock: 231621MOC3023 Datasheet

Current PartRFQ

MOC3023M

onsemiIn Stock: 165299MOC3023M Datasheet

DirectRFQ

MOC3023

onsemiIn Stock: 231621MOC3023 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MOC3023 is determined by the following critical parameters:

• Package compatibility: 6-DIP (0.300", 7.62mm) form factor for direct PCB mounting
• Output topology: Triac output configuration
• Channel count: Single channel
• Isolation voltage: Minimum 5300Vrms isolation rating
• Electrical characteristics: LED trigger current (Ift) of 5mA maximum, hold current (Ih) of 100µA, and forward current (If) rating

The MOC3023M qualifies as a direct substitute based on matching package, output type, channel configuration, and electrical trigger specifications. However, the MOC3023M operates at 4170Vrms isolation voltage, which is lower than the original 5300Vrms specification. This represents a functional downgrade in isolation capability and must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The MOC3023M is the active production equivalent from onsemi for the obsolete MOC3023. Both components share identical package geometry, output topology, and trigger current specifications, enabling direct PCB layout compatibility.

The primary technical distinction is isolation voltage: the MOC3023M operates at 4170Vrms compared to the MOC3023's 5300Vrms. Selection between these parts depends on circuit isolation requirements. If the design specifies 5300Vrms isolation as a mandatory parameter, the MOC3023M does not meet this requirement. If circuit isolation requirements are 4170Vrms or lower, the MOC3023M provides an active, production-supported alternative with ROHS3 compliance.

The MOC3023M offers improved forward current capability (60mA versus 50mA), which may provide operational margin in LED drive circuits.

Frequently Asked Questions (FAQ)

Q: Can MOC3023M directly replace MOC3023 on existing PCBs?

A: Yes, from a mechanical and electrical interface perspective. Both components use identical 6-DIP packaging and share the same pin configuration. However, the reduced isolation voltage (4170Vrms versus 5300Vrms) must be verified against circuit isolation requirements before implementation.

Q: What is the primary reason to substitute MOC3023 with MOC3023M?

A: The MOC3023 is obsolete. The MOC3023M is the active production part from onsemi with identical package and output topology. It provides design continuity for new production and ongoing supply.

Q: Are there differences in operating temperature range?

A: The MOC3023M specifies an operating temperature range of -40°C to 85°C. The MOC3023 operating temperature is not provided in the available data.

Q: Does isolation voltage difference affect pin compatibility?

A: No. Isolation voltage is an internal device characteristic and does not affect pinout or mechanical compatibility. Pin assignments remain identical between MOC3023 and MOC3023M.

Q: What compliance certifications apply to each part?

A: The MOC3023M is ROHS3 compliant. Both parts carry REACH Unaffected status and EAR99 export classification.