MOC3022FVM Optoisolator Equivalent & Substitute Parts

Part Overview

The MOC3022FVM is a 7.5kV isolation optoisolator with triac output manufactured by onsemi in 6-SMD surface mount packaging. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The MOC3022FVM serves as a galvanic isolation interface for triac-based switching applications requiring high voltage isolation and low LED trigger current specifications.

Substiute Parts

MOC3022FVM

onsemiIn Stock: 1121MOC3022FVM Datasheet

Current PartRFQ

MOC3020X

Isocom Components 2004 LTDIn Stock: 12751MOC3020X Datasheet

SimilarRFQ

MOC3021X

Isocom Components 2004 LTDIn Stock: 12863MOC3021X Datasheet

SimilarRFQ

MOC3022X

Isocom Components 2004 LTDIn Stock: 1621MOC3022X Datasheet

SimilarRFQ

MOC3023X

Isocom Components 2004 LTDIn Stock: 3960MOC3023X Datasheet

SimilarRFQ

VO3023-X001

Vishay Semiconductor Opto DivisionIn Stock: 12693VO3023-X001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3022FVM is determined by the following critical parameters:

• Output Type: Triac output configuration (mandatory match)
• Number of Channels: Single channel (mandatory match)
• Voltage - Isolation: Minimum 5000Vrms or equivalent peak voltage (acceptable if ≥ 5000Vrms)
• Voltage - Off State: 400 V (standard across all candidates)
• Current - LED Trigger (Ift): Maximum 10mA or lower (MOC3022FVM specification)
• Current - Hold (Ih): 100µA or higher (acceptable if ≥ 100µA)
• Current - DC Forward (If): 50 mA or higher (acceptable if ≥ 50 mA)
• Mounting Type & Package: Surface mount preferred; through-hole alternatives acceptable with design modification
• Product Status: Active status preferred for long-term availability

The MOC3022X from Isocom Components 2004 LTD and VO3023-X001 from Vishay Semiconductor Opto Division meet these substitution criteria. MOC3020X and MOC3021X are also listed as acceptable alternatives based on the original part's substitute field, though with different LED trigger current specifications.

Parameter Comparison

Engineering Selection Recommendations

MOC3022X (Isocom Components 2004 LTD) is the primary substitute for the MOC3022FVM. This part matches the LED trigger current specification (10mA maximum) and maintains the same hold current (100µA). The part is active and ROHS3 compliant. The primary design consideration is the transition from surface mount (6-SMD) to through-hole (6-DIP) packaging, which requires PCB layout modification. The isolation voltage is specified as 5300Vrms, which is lower than the original 7500Vpk but remains within acceptable substitution parameters for most triac isolation applications.

VO3023-X001 (Vishay Semiconductor Opto Division) is an alternative substitute with superior static dV/dt performance (100V/µs versus 10V/µs typical). This part features lower LED trigger current (5mA maximum) and higher hold current (200µA typical), making it suitable for applications requiring faster transient response. Comprehensive approval agency certifications (CQC, CSA, cUL, FIMKO, UL, VDE) support broad regulatory compliance. Like MOC3022X, this part requires PCB redesign for through-hole mounting.

MOC3023X (Isocom Components 2004 LTD) offers the lowest LED trigger current (5mA maximum) among all substitutes, suitable for low-power driver circuits. This part is active and ROHS3 compliant with UR and VDE certifications.

MOC3020X and MOC3021X are acceptable alternatives with higher LED trigger current specifications (30mA and 15mA respectively), suitable only for applications where higher input current is acceptable.

All substitute parts maintain 400 V off-state voltage and 100µA or higher hold current specifications. Inventory availability is confirmed for all candidates.

Frequently Asked Questions (FAQ)

Q: Can MOC3022X directly replace MOC3022FVM without PCB modification?

A: No. MOC3022X uses 6-DIP through-hole packaging while MOC3022FVM uses 6-SMD surface mount packaging. PCB layout redesign is required. Pin-to-pin functional compatibility is maintained.

Q: What is the isolation voltage difference between MOC3022FVM (7500Vpk) and substitute parts (5300Vrms)?

A: The original part specifies 7500Vpk isolation. Substitute parts specify 5300Vrms isolation. These are equivalent measurements on different scales. 5300Vrms converts to approximately 7500Vpk, making the isolation ratings functionally equivalent for triac output optoisolators.

Q: Which substitute part has the best performance characteristics?

A: VO3023-X001 offers the highest static dV/dt rating (100V/µs) and broadest regulatory certifications. MOC3022X provides the closest electrical match to the original part. Selection depends on specific application requirements for transient response and regulatory compliance.

Q: Are all substitute parts ROHS3 compliant?

A: MOC3020X, MOC3021X, MOC3022X, and MOC3023X are confirmed ROHS3 compliant. VO3023-X001 RoHS status is not specified in the provided data.

Q: What is the impact of different LED trigger current specifications?

A: MOC3022FVM specifies 10mA maximum LED trigger current. Substitutes range from 5mA to 30mA. Lower trigger current (5mA) reduces input driver power requirements. Higher trigger current (30mA) requires stronger input drivers. Circuit design must accommodate the selected part's trigger current specification.

Q: Can through-hole parts be used in surface mount designs?

A: Through-hole parts require PCB redesign with plated through-holes and different footprints. Surface mount to through-hole conversion is not a direct substitution without significant PCB layout changes.

Q: What certifications are most important for triac optoisolator selection?

A: VDE and UL certifications are standard for triac isolation applications. VO3023-X001 includes additional certifications (CQC, CSA, cUL, FIMKO) supporting broader international regulatory compliance.