MOC3041 TRIAC Driven Optocoupler: Datasheet, Application Circuit, Pinout
ON SEMICONDUCTOR - MOC3041M - Optocoupler, DIP, 6 Pins, 7.5 kV, Zero Crossing, 400 V









ON SEMICONDUCTOR - MOC3041M - Optocoupler, DIP, 6 Pins, 7.5 kV, Zero Crossing, 400 V
The MOC3041 is a Zero-Crossing TRIAC driven Optocoupler. This article will unlock more details about MOC3041. There is a huge range of Semiconductors, Capacitors, Resistors and ICs in stock. Welcome RFQ.

Opto Isolator Circuit Interface to TRIAC | Sensor based Projects
MOC3041 Pinout

MOC3041 Pinout
| Pin Number | Pin Name | Description |
| 1 | Anode (A) | Anode pin of the IR LED. Connected to the logic input |
| 2 | Cathode (C) | Cathode pin of the IR LED |
| 3 | NC | No Connection - Cannot be used |
| 4 | Triac Main Terminal 1 | One end of the Triac which is present inside the IC |
| 5 | NC | No Connection – Cannot be used |
| 6 | Triac Main Terminal 2 | Another end of the Triac which is present inside the IC |
MOC3041 CAD Model
Symbol

MOC3041 Symbol
Footprint

MOC3041 Footprint
3D Model

MOC3041 3D Model
MOC3041 Description
The MOC3041 is a TRIAC-driven Optocoupler with a Zero-Crossing configuration. It contains a TRIAC and an infrared light-emitting diode (LED). The TRIAC is also switched on when the LED is triggered.
A MOC3041 Optoisolator is typically used to control another external switching device like as a TRIAC, MOSFET, or SCR, which controls an AC or DC load. The MOC3041's TRIAC can deliver up to 1A peak current, which is sufficient to activate an external switch. Without an external switch, the TRIAC should not be utilized to switch loads.
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 3 days ago) - Factory Lead Time5 Weeks
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Through Hole - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
6-DIP (0.300, 7.62mm) - Number of Pins6
- Weight855mg
- Current-Hold(Ih)400μA Typ
- Current-LED Trigger(Ift)(Max)15mA
- Number of Elements1
- Zero-Crossing CircuitYes
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - Published2008
- JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e3 - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
yes - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Tin (Sn) - Max Power Dissipation
The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.
250mW - Approval Agency
The parameter "Approval Agency" in electronic components refers to the organization responsible for testing and certifying that a component meets specific safety, quality, and performance standards. These agencies evaluate products to ensure compliance with industry regulations and standards, providing assurance to manufacturers and consumers. Approval from recognized agencies can enhance a component's marketability and acceptance in various applications, particularly in sectors like automotive, aerospace, and healthcare. Common approval agencies include Underwriters Laboratories (UL), International Electrotechnical Commission (IEC), and the American National Standards Institute (ANSI).
UL - Voltage - Isolation
Voltage - Isolation is a parameter in electronic components that refers to the maximum voltage that can be safely applied between two isolated points without causing electrical breakdown or leakage. It is a crucial specification for components such as transformers, optocouplers, and capacitors that require isolation to prevent electrical interference or safety hazards. The voltage isolation rating ensures that the component can withstand the specified voltage without compromising its performance or safety. It is typically measured in volts and is an important consideration when designing circuits that require isolation between different parts of the system.
4170Vrms - Output Voltage
Output voltage is a crucial parameter in electronic components that refers to the voltage level produced by the component as a result of its operation. It represents the electrical potential difference between the output terminal of the component and a reference point, typically ground. The output voltage is a key factor in determining the performance and functionality of the component, as it dictates the level of voltage that will be delivered to the connected circuit or load. It is often specified in datasheets and technical specifications to ensure compatibility and proper functioning within a given system.
400V - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
Triac - Configuration
The parameter "Configuration" in electronic components refers to the specific arrangement or setup of the components within a circuit or system. It encompasses how individual elements are interconnected and their physical layout. Configuration can affect the functionality, performance, and efficiency of the electronic system, and may influence factors such as signal flow, impedance, and power distribution. Understanding the configuration is essential for design, troubleshooting, and optimizing electronic devices.
SINGLE - Number of Channels1
- Power Dissipation
the process by which an electronic or electrical device produces heat (energy loss or waste) as an undesirable derivative of its primary action.
250mW - Output Current
The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.
100mA - Forward Current
Current which flows upon application of forward voltage.
30mA - Max Input Voltage
Max Input Voltage refers to the maximum voltage level that an electronic component can safely handle without getting damaged. This parameter is crucial for ensuring the proper functioning and longevity of the component. Exceeding the specified maximum input voltage can lead to overheating, electrical breakdown, or permanent damage to the component. It is important to carefully adhere to the manufacturer's guidelines regarding the maximum input voltage to prevent any potential issues and maintain the reliability of the electronic device.
1.5V - Nominal Input Voltage
The actual voltage at which a circuit operates can vary from the nominal voltage within a range that permits satisfactory operation of equipment. The word “nominal” means “named”.
1.25V - Reverse Breakdown Voltage
Reverse Breakdown Voltage is the maximum reverse voltage a semiconductor device can withstand before it starts to conduct heavily in the reverse direction. It is a critical parameter in diodes and other components, indicating the threshold at which the material's insulating properties fail. Beyond this voltage, the device may enter a breakdown region, leading to potential damage if not properly managed. This parameter is essential for ensuring safe operation and reliability in electronic circuits.
6V - Reverse Voltage
the voltage drop across the diode if the voltage at the cathode is more positive than the voltage at the anode
6V - Max Input Current
Max Input Current is a parameter that specifies the maximum amount of electrical current that can safely flow into an electronic component without causing damage. It is an important consideration when designing or using electronic circuits to ensure that the component operates within its specified limits. Exceeding the maximum input current can lead to overheating, component failure, or even pose safety risks. Manufacturers provide this parameter in datasheets to help engineers and users understand the limitations of the component and ensure proper operation within the specified parameters.
60mA - Hold Current
the minimum current which must pass through a circuit in order for it to remain in the 'ON' state.
400μA - Input Current
Input current is a parameter that refers to the amount of electrical current flowing into a specific electronic component or device. It is typically measured in amperes (A) and represents the current required for the component to operate properly. Understanding the input current is important for designing circuits and power supplies, as it helps determine the capacity and compatibility of the components being used. Monitoring the input current also helps ensure that the component is not being overloaded or underpowered, which can affect its performance and longevity.
30mA - Max Junction Temperature (Tj)
Max Junction Temperature (Tj) refers to the maximum allowable temperature at the junction of a semiconductor device, such as a transistor or integrated circuit. It is a critical parameter that influences the performance, reliability, and lifespan of the component. Exceeding this temperature can lead to thermal runaway, breakdown, or permanent damage to the device. Proper thermal management is essential to ensure the junction temperature remains within safe operating limits during device operation.
100°C - Static dV/dt (Min)
Static dV/dt (Min) refers to the minimum rate of change of voltage that a device or component can withstand without experiencing breakdown or failure. It is an important parameter in the design and specification of electronic components, particularly for devices exposed to fast voltage transients. A higher static dV/dt value indicates better tolerance to rapid voltage changes, which is crucial in applications like power electronics and signal integrity. This parameter helps ensure reliability and performance in circuits subjected to varying electric fields.
1kV/μs - On-State Voltage-Max
The parameter "On-State Voltage-Max" in electronic components refers to the maximum voltage drop across the component when it is in the fully conducting state. This parameter is important because it indicates the maximum voltage that can be applied across the component while still allowing current to flow through it efficiently. Exceeding this voltage may lead to overheating, damage, or even failure of the component. Designers and engineers use this parameter to ensure that the component is operated within its safe operating limits to maintain reliability and performance in the circuit.
3V - Input Trigger Current-Nom
The parameter "Input Trigger Current-Nom" in electronic components refers to the nominal current level required to trigger a specific function or operation within the component. This parameter is crucial for determining the threshold at which the component will respond to an input signal or command. It helps in ensuring that the component functions reliably and consistently within its specified operating conditions. Understanding the Input Trigger Current-Nom is essential for designing circuits and systems that rely on precise triggering mechanisms for proper operation.
15mA - Peak Surge Current
Peak Current Rating (Maximum Current Rating) is the most current that the MOV device can handle without suffering irreversible damage.
1A - Height5.08mm
- Length6.35mm
- Width6.35mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsNumber of ChannelsVoltage - IsolationOutput VoltageOutput CurrentForward CurrentRoHS StatusView Compare
MOC3041M
6-DIP (0.300, 7.62mm)
6
1
4170Vrms
400 V
100 mA
30 mA
ROHS3 Compliant
8-DIP (0.300, 7.62mm), 7 Leads
7
-
-
800 V
420 mA
-
ROHS3 Compliant
6-DIP (0.300, 7.62mm)
6
1
4170Vrms
250 V
-
60 mA
ROHS3 Compliant
6-DIP (0.300, 7.62mm)
6
1
4170Vrms
250 V
-
60 mA
ROHS3 Compliant
6-DIP (0.300, 7.62mm)
6
1
4170Vrms
250 V
-
60 mA
ROHS3 Compliant
MOC3041 Feature
Opto-isolator with Zero-Crossing Triac Driver
Input LED Diode Forward Voltage: 1.3V
LED Forward Trigger Current: 15mA
TRIAC output terminal voltage: 400V (max)
TRIAC peak output current: 1A
Available as 6-pin PDIP with and without M-suffix
MOC3041 Application
AC Light dimmers
Contactor / Relay Control
AC motor speed control
Noise coupling circuits
Controlling AC loads using MCU/MPU
Ac/DC Power control
Solenoid / Valve control
MOC3041 Equivalent
MOC3021
Where to use MOC3041
The MOC304X optocoupler's structure is based on simple IR communication; its transmitter is an LED that is solely utilized to transmit the IR signal on the logical input. The other component is a well-known monolithic silicon detector for performing the zero-cross voltage and TRIAC functions. Because the MOC3041 is utilized with high-load AC switching, a TRIAC is used to store the power.
The zero-cross is generally employed in digital dimmer to generate timing signals but here it will be used solely to detect the zero voltage at each cycle of AC, The AC load is always on and off for a set amount of time. During this length of time the gadget could heat up and there’s a danger that the device could get burned. A zero-cross method, which detects zero volts from the AC sign wave, is used to ensure the load's safety. The internal TRIAC becomes active whenever the voltage reaches 0V in each cycle; during this time, the optocoupler's TRIAC can be used for switching. The load will have a rare chance to be exposed to maximum voltages using this strategy.
How to use MOC3041
The MOC3041 is frequently used in AC motor speed control, light dimmers, and other home automation applications that involve an AC load. The following is a typical application circuit schematic for controlling an ACload with a Microcontroller.

MOC3041 Application Circuit
Pins 1 and 2 are connected to the internal IR LED. Through the resistor Rin, the voltage source Vcc should be able to provide 15mA to the LED's Anode pin. Based on a PWM signal from the microcontroller, the NAND gate connects the LED's Cathode pin to the ground. As a result, one input pin of the NAND gate will be linked to the ground and the other to the PWM signal.
The LED will be turned on at a specific interval based on the PWM signal, and the internal TRIAC will also be switched on. When the internal TRIAC is turned on, the external TRIAC is switched on, and the AC load is controlled. The 0.01uF capacitors and the 39 ohms resistor comprise an optional Snubber circuit. As a result, the output voltage varies depending on the duty cycle of the PWM, allowing us to adjust the load's speed and intensity.
MOC3041 Package

MOC3041 Package
MOC3041 Manufacturer
On Semiconductor (Nasdaq: ON) is a manufacturer engaging itself in reducing energy use. It features a comprehensive portfolio of power, signal management, and logic, custom solutions that are energy efficient. It acts as a world-class supply chain with high reliability and a network of manufacturing facilities, sales, offices, and design centres in key markets through North America, Europe, and the Asia Pacific regions.
Datasheet PDF
- Datasheets :
- Environmental Information :
- PCN Design/Specification :
- PCN Packaging :
Popularity by Region
How does MOC3041 work?
MOC3041 for Switching AC loads. The internal IR LED is connected between pin 1 and pin 2. ... Based on the PWM signal the LED will be turned on at a particular interval for which the internal TRIAC will also be turned on. When the internal TRIAC is turned on it switches the external TRIAC which in turn controls the AC load.
What is MOC3041 optocoupler?
MOC3041 is an optocoupler but unlike other optoisolators, it has a special feature of zero-crossing based switching. It is based on zero-crossing. MOC304X series is also used to operate the external TRIACS, SSR, and MOSFETS.
What is difference between optocoupler and opto isolator?
Today we find that both the terms optocoupler and optoisolator are used interchangeably to refer to the same function. The distinguishing feature between these two terms is the amount of voltage being isolated. In all optocouplers and optoisolators, input signals are converted to a pulse of light from an LED.
What configuration does the MOC3041 have?
Zero-Crossing.
What does the MOC3041 contain?
TRIAC and an infrared light-emitting diode.
What is used to control an external switching device?
A MOC3041 Optoisolator.
What is the MOC304X optocouplers structure based on?
simple IR communication.
What is the other component of the MOC304X optocoupler?
Monolithic silicon detector.
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