MOC3012FVM Equivalent & Substitute Parts

Part Overview

The MOC3012FVM is a triac output optoisolator manufactured by onsemi, rated for 7500Vpk isolation voltage with a single channel configuration in 6-SMD surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MOC3012FVM serves applications requiring galvanic isolation in triac-driven circuits, particularly in AC power control and switching applications.

Key Parameters

Parameter	MOC3012FVM Value
Manufacturer	onsemi
Category	Optoisolators
Output Type	Triac
Number of Channels	1
Voltage - Isolation	7500Vpk
Voltage - Off State	250 V
Current - LED Trigger (Ift) (Max)	5mA
Current - Hold (Ih)	100µA (Typ)
Current - DC Forward (If) (Max)	60 mA
Mounting Type	Surface Mount
Package / Case	6-SMD, Gull Wing
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MOC3012FVM is determined by the following critical parameters:

Primary Substitution Criteria:

Output Type: Triac (mandatory match)
Number of Channels: 1 (mandatory match)
Voltage - Off State: 250 V (mandatory match)
Current - LED Trigger (Ift) (Max): 5mA or higher (must accommodate trigger requirements)
Current - Hold (Ih): 100µA or higher (must support holding current)
Current - DC Forward (If) (Max): 60 mA or higher (must support forward current)

Secondary Considerations:

Voltage - Isolation: Minimum 5000Vrms or equivalent (lower isolation voltage acceptable for less demanding applications)
Mounting Type: Surface mount preferred; through-hole alternatives acceptable with board redesign
Package compatibility: 6-SMD surface mount or 6-DIP through-hole

The substitute parts identified fall into two categories: direct surface-mount replacements (MOC3012X variants) and through-hole alternatives (Everlight EL series and Isocom H11J series) that require package redesign but maintain electrical compatibility.

Parameter Comparison

Parameter	MOC3012FVM	MOC3012X	EL3012-V	H11J3X	MOC3010X
Manufacturer	onsemi	Isocom	Everlight	Isocom	Isocom
Output Type	Triac	Triac	Triac	Triac	Triac
Number of Channels	1	1	1	1	1
Voltage - Isolation	7500Vpk	5300Vrms	5000Vrms	5300Vrms	5300Vrms
Voltage - Off State	250 V	250 V	250 V	250 V	250 V
Current - LED Trigger (Ift) (Max)	5mA	15mA	5mA	10mA	15mA
Current - Hold (Ih)	100µA (Typ)	250µA (Typ)	250µA (Typ)	100µA	100µA
Current - DC Forward (If) (Max)	60 mA	50 mA	60 mA	50 mA	50 mA
Mounting Type	Surface Mount	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	6-SMD, Gull Wing	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature	Not specified	-40°C ~ 100°C	-55°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C

Engineering Selection Recommendations

Direct Surface-Mount Replacement (No Board Redesign): MOC3012X is the preferred direct substitute, maintaining the same package footprint and mounting type as the MOC3012FVM. Both are manufactured by Isocom and share identical base product number (MOC301). The MOC3012X is active in production status, ensuring long-term availability. Electrical parameters are compatible: isolation voltage of 5300Vrms exceeds the minimum requirement, trigger current of 15mA accommodates the 5mA specification, and forward current of 50mA is acceptable for most applications. RoHS3 compliance provides environmental regulatory alignment.

Through-Hole Alternatives (Board Redesign Required): For applications permitting board layout modification, three substitute families are available:

Everlight EL3012-V offers the closest electrical match with 60mA forward current capacity matching the original specification. Operating temperature range of -55°C ~ 100°C provides extended low-temperature performance. Isolation voltage of 5000Vrms is acceptable for standard industrial applications. Certifications include CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, and VDE.

Isocom H11J3X provides 5300Vrms isolation with 100µA holding current matching the original specification. Certifications include UL and VDE. This part is suitable for applications with standard temperature requirements (-40°C ~ 100°C).

Isocom MOC3010X delivers 5300Vrms isolation with 100µA holding current. This part maintains compatibility with the MOC301 base product family and includes UL and VDE certifications.

All substitute parts maintain the critical 250V off-state voltage specification and single-channel triac output configuration. Selection should be based on packaging constraints, temperature requirements, and certification needs specific to the application.

Frequently Asked Questions (FAQ)

Q: Can MOC3012X be used as a direct replacement for MOC3012FVM without board modifications? A: Yes. MOC3012X maintains identical 6-SMD surface mount packaging and gull wing configuration. Electrical parameters are compatible, with higher trigger current tolerance (15mA vs. 5mA) and slightly lower isolation voltage (5300Vrms vs. 7500Vpk). No board redesign is required.

Q: What is the key difference between the MOC3012FVM isolation voltage (7500Vpk) and substitute parts (5000-5300Vrms)? A: The original specification of 7500Vpk provides higher isolation margin. Substitute parts rated at 5000-5300Vrms are suitable for standard industrial AC power control applications. Applications requiring the full 7500Vpk isolation should be evaluated for voltage stress conditions before substitution.

Q: Are through-hole alternatives (EL3012-V, H11J3X, MOC3010X) electrically compatible with MOC3012FVM? A: Yes, electrically compatible. All maintain the required 250V off-state voltage, single-channel triac output, and adequate current specifications. However, through-hole packages require board layout redesign. The 6-DIP footprint differs from the 6-SMD gull wing configuration.

Q: Which substitute part has the best low-temperature performance? A: Everlight EL3012-V operates from -55°C to 100°C, providing the widest low-temperature range. Isocom parts (H11J3X, MOC3010X) operate from -40°C to 100°C. Selection depends on application temperature requirements.

Q: Do all substitute parts meet RoHS compliance? A: Yes. All identified substitute parts are ROHS3 compliant. The original MOC3012FVM compliance status is not specified due to its obsolete status.

Q: What certifications are available for substitute parts? A: Everlight EL3012-V includes CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, and VDE certifications. Isocom parts (H11J3X, MOC3010X, MOC3012X) include UL and VDE certifications. Application-specific certification requirements should guide final selection.

Q: Can MOC3009X be used as a substitute despite lower isolation voltage specification? A: MOC3009X is listed in the original MOC3012FVM substitute list but shows 7.5Vpk isolation, which is significantly lower than required. This part is not recommended as a direct substitute and should only be considered if application voltage stress analysis confirms compatibility.

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