MOC3011FR2VM Optoisolator Triac Output Equivalent & Substitute Parts

Part Overview

The MOC3011FR2VM 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 and substitute parts necessary for ongoing design support and production continuity. The part operates as a random-phase triac driver suitable for AC load switching applications requiring galvanic isolation between control and power circuits.

Key Parameters

Parameter	MOC3011FR2VM
Manufacturer	onsemi
Output Type	Triac
Voltage - Isolation	7500Vpk
Voltage - Off State	250 V
Current - LED Trigger (Ift) (Max)	10mA
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 MOC3011FR2VM is determined by the following critical parameters:

Primary Substitution Criteria:

Output Type: Triac (all substitutes must be triac output optoisolators)
Number of Channels: 1 (single channel isolation)
Voltage - Off State: 250 V (maximum triac off-state voltage)
Current - LED Trigger (Ift): 10mA or lower (control circuit compatibility)
Current - Hold (Ih): 100µA or higher (triac holding current requirement)
Current - DC Forward (If): 60 mA or lower (LED drive current compatibility)

Secondary Considerations:

Isolation voltage: 5000Vrms or higher acceptable (MOC3011FR2VM specifies 7500Vpk)
Mounting type: Surface mount preferred; through-hole acceptable with board redesign
Product status: Active status preferred for long-term availability

Substitutes are grouped into two categories: surface-mount alternatives (direct replacement) and through-hole alternatives (requiring layout modification).

Parameter Comparison

Parameter	MOC3011FR2VM	MOC3011SR2VM	H11J1X	H11J2X	H11J3X	H11J4X	H11J5X	EL3010-V	EL3011-V	EL3012-V
Manufacturer	onsemi	Fairchild Semiconductor	Isocom	Isocom	Isocom	Isocom	Isocom	Everlight	Everlight	Everlight
Output Type	Triac	Triac	Triac	Triac	Triac	Triac	Triac	Triac	Triac	Triac
Voltage - Isolation	7500Vpk	4170Vrms	5300Vrms	5300Vrms	5300Vrms	5300Vrms	5300Vrms	5000Vrms	5000Vrms	5000Vrms
Voltage - Off State	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V
Current - LED Trigger (Ift) (Max)	10mA	10mA	10mA	15mA	10mA	15mA	25mA	15mA	10mA	5mA
Current - Hold (Ih)	100µA (Typ)	100µA (Typ)	100µA	100µA	100µA	100µA	100µA	250µA (Typ)	250µA (Typ)	250µA (Typ)
Current - DC Forward (If) (Max)	60 mA	60 mA	50 mA	50 mA	50 mA	50 mA	50 mA	60 mA	60 mA	60 mA
Mounting Type	Surface Mount	Surface Mount	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	6-SMD, Gull Wing	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)	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	Active	Active	Active	Active	Active
Operating Temperature	Not specified	-40°C ~ 85°C	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
RoHS Status	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Surface Mount Direct Replacement:

MOC3011SR2VM (Fairchild Semiconductor) is the primary surface-mount substitute. It maintains the 6-SMD gull-wing package format, eliminating board redesign requirements. The part is active status with IEC/EN/DIN and UL certifications. Isolation voltage is specified as 4170Vrms, which is lower than the original 7500Vpk specification. This substitute is suitable for applications where the reduced isolation margin is acceptable within system safety margins.

Through-Hole Alternatives:

The H11J series (Isocom Components) and EL3010/EL3011/EL3012 series (Everlight Electronics) provide through-hole 6-DIP package alternatives. All are active status with established compliance certifications (UL, VDE for H11J series; CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, VDE for Everlight series). These require PCB layout modification but offer long-term availability and extended operating temperature ranges (-40°C to 100°C or -55°C to 100°C).

Isolation Voltage Consideration:

The MOC3011FR2VM specifies 7500Vpk isolation. All substitute parts specify lower isolation voltages (4170Vrms to 5300Vrms). System design must confirm that the reduced isolation voltage meets application safety requirements and regulatory compliance.

LED Trigger Current Matching:

EL3012-V offers the lowest LED trigger current specification (5mA maximum), providing the most sensitive control circuit interface. H11J1X and H11J3X match the original 10mA specification. H11J2X, H11J4X, and H11J5X require higher trigger currents (15mA and 25mA), necessitating control circuit verification.

Frequently Asked Questions (FAQ)

Q: Can MOC3011SR2VM directly replace MOC3011FR2VM on the existing PCB?

A: Yes, MOC3011SR2VM maintains identical 6-SMD gull-wing surface mount packaging and pinout compatibility. No board redesign is required. However, the isolation voltage specification is lower (4170Vrms vs. 7500Vpk), requiring verification that system safety margins remain adequate.

Q: What is the primary difference between surface-mount and through-hole substitutes?

A: MOC3011SR2VM is surface-mount (direct PCB replacement). H11J series and Everlight EL3010/EL3011/EL3012 are through-hole 6-DIP packages, requiring PCB layout modification with drilled holes and different trace routing. Through-hole alternatives offer extended temperature ranges and broader compliance certifications.

Q: Which substitute has the best long-term availability?

A: All substitute parts listed carry active product status. Isocom H11J series and Everlight EL3010/EL3011/EL3012 series are established through-hole designs with multiple sourcing options and established supply chains. MOC3011SR2VM is active but represents a single manufacturer source.

Q: Does LED trigger current variation affect circuit design?

A: Yes. The original MOC3011FR2VM specifies 10mA maximum LED trigger current. EL3012-V requires only 5mA, while H11J4X and H11J5X require 15mA and 25mA respectively. Control circuit current-limiting resistor values must be recalculated to match the selected substitute part's LED specifications.

Q: Are all substitutes RoHS compliant?

A: All through-hole substitutes (H11J series and Everlight EL3010/EL3011/EL3012) are ROHS3 compliant. MOC3011SR2VM RoHS status is not specified in available data. Verify RoHS compliance requirements with the Fairchild Semiconductor datasheet if regulatory compliance is mandatory.

Q: What certifications should I verify for safety-critical applications?

A: MOC3011SR2VM carries IEC/EN/DIN and UL certifications. H11J series carries UL and VDE certifications. Everlight EL3010/EL3011/EL3012 carry CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, and VDE certifications. Confirm that selected certifications meet application and regional regulatory requirements.

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