SN7406N Inverting Buffer IC: How to use the SN7406N?
5V V 23 ns ns 23 ns ns 19.3mm mm Gates & Inverters 40mA mA 5.08mm mm Through Hole Surface Mount 4.75V~5.25V V 32mA μA









5V V 23 ns ns 23 ns ns 19.3mm mm Gates & Inverters 40mA mA 5.08mm mm Through Hole Surface Mount 4.75V~5.25V V 32mA μA
The SN7406N devices feature high-voltage open-collector outputs for interfacing with high-level circuits (such as MOS) or for driving high-current loads (such as lamps or relays) and also are characterized for use as inverter buffers for driving TTL inputs. This article is going to talk about the pinout, features, applications, and more detailed information about the SN7406N.

SN74LS06N hex inverter open collector output NOT gate IC demonstration circuit
Overview of SN7406N
The SN7406N devices provide high-voltage open-collector outputs for driving high-current loads (such as lamps or relays), as well as inverter buffers for driving TTL inputs. The minimum breakdown voltages of the SN5406 and SN7406 are 30 V. The minimum breakdown voltages of the SN5416 and SN7416 are 15 V. The SN5406 and SN5416 have a maximum sink current of 30 mA, while the SN7406 and SN7416 have a maximum sink current of 40 mA.
SN7406N Features
Convert TTL Voltage Levels to MOS Levels
High Sink-Current Capability
Input Clamping Diodes Simplify System Design
Open-Collector Drivers for Indicator Lamps and Relays
Inputs Fully Compatible With Most TTL Circuits
SN7406N Pinout

SN7406N Pinout
Pin Description
| Pin Number | Pin Name | Description |
| 1, 3, 5, 9, 11, 13 | 1A, 2A, 3A, 4A, 5A, 6A | TTL-level inputs |
| 2, 4, 6, 8, 10, 12 | 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Open-collector outputs |
| 7 | GND | IC ground reference |
| 14 | V CC | Power supply pin |
Specifications
- TypeParameter
- Factory Lead Time6 Weeks
- 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) - 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.
14-DIP (0.300, 7.62mm) - Number of Pins14
- Logic Level-Low0.8V
- Logic Level-High2V
- 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.
0°C~70°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 - Series
In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.
7400 - 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.
e4 - 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) - Number of Terminations14
- Termination
Termination in electronic components refers to the practice of matching the impedance of a circuit to prevent signal reflections and ensure maximum power transfer. It involves the use of resistors or other components at the end of transmission lines or connections. Proper termination is crucial in high-frequency applications to maintain signal integrity and reduce noise.
Through Hole - 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.
Nickel/Palladium/Gold (Ni/Pd/Au) - Additional Feature
Any Feature, including a modified Existing Feature, that is not an Existing Feature.
IOL = 40MA @ VOL = 0.7V; IOH = 0.25MA @ VOH = 30V - HTS Code
HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.
8542.39.00.01 - Voltage - Supply
Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.
4.75V~5.25V - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
DUAL - Number of Functions6
- Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
5V - Terminal Pitch
The center distance from one pole to the next.
2.54mm - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
SN7406 - Pin Count
a count of all of the component leads (or pins)
14 - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
5V - Polarity
In electronic components, polarity refers to the orientation or direction in which the component must be connected in a circuit to function properly. Components such as diodes, capacitors, and LEDs have polarity markings to indicate which terminal should be connected to the positive or negative side of the circuit. Connecting a component with incorrect polarity can lead to malfunction or damage. It is important to pay attention to polarity markings and follow the manufacturer's instructions to ensure proper operation of electronic components.
Inverting - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
5V - Number of Channels6
- Load Capacitance
the amount of capacitance measured or computed across the crystal terminals on the PCB. Frequency Tolerance. Frequency tolerance refers to the allowable deviation from nominal, in parts per million (PPM), at a specific temperature, usually +25°C.
15pF - 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.
40mA - Propagation Delay
the flight time of packets over the transmission link and is limited by the speed of light.
23 ns - Quiescent Current
The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.
32mA - Turn On Delay Time
Turn-on delay, td(on), is the time taken to charge the input capacitance of the device before drain current conduction can start.
23 ns - Family
In electronic components, the parameter "Family" typically refers to a categorization or classification system used to group similar components together based on their characteristics, functions, or applications. This classification helps users easily identify and select components that meet their specific requirements. The "Family" parameter can include various subcategories such as resistors, capacitors, diodes, transistors, integrated circuits, and more. Understanding the "Family" of an electronic component can provide valuable information about its compatibility, performance specifications, and potential uses within a circuit or system. It is important to consider the "Family" parameter when designing or troubleshooting electronic circuits to ensure proper functionality and compatibility with other components.
TTL/H/L - Logic Function
In electronic components, the term "Logic Function" refers to the specific operation or behavior of a component based on its input signals. It describes how the component processes the input signals to produce the desired output. Logic functions are fundamental to digital circuits and are used to perform logical operations such as AND, OR, NOT, and XOR.Each electronic component, such as logic gates or flip-flops, is designed to perform a specific logic function based on its internal circuitry. By understanding the logic function of a component, engineers can design and analyze complex digital systems to ensure proper functionality and performance. Different logic functions can be combined to create more complex operations, allowing for the creation of sophisticated digital devices and systems.
Buffer, Inverter, Inverting - Logic Type
Logic Type in electronic components refers to the classification of circuits based on the logical operations they perform. It includes types such as AND, OR, NOT, NAND, NOR, XOR, and XNOR, each defining the relationship between binary inputs and outputs. The logic type determines how the inputs affect the output state based on specific rules of Boolean algebra. This classification is crucial for designing digital circuits and systems, enabling engineers to select appropriate components for desired functionalities.
Inverter - Max I(ol)
Max I(ol) refers to the maximum output current that a specific electronic component, such as a transistor or integrated circuit, can sink or source. This parameter is crucial in determining the capability of the component to drive external loads without being damaged. It is typically specified in the component's datasheet and is important for ensuring proper operation and reliability of the circuit in which the component is used. Designers must ensure that the output current requirements of the circuit do not exceed the specified "Max I(ol)" value to prevent overloading and potential failure of the component.
0.04 A - Max Propagation Delay @ V, Max CL
The parameter "Max Propagation Delay @ V, Max CL" in electronic components refers to the maximum amount of time it takes for a signal to propagate through the component from input to output when operating at a specific voltage (V) and driving a maximum specified load capacitance (CL). This parameter is crucial in determining the speed and performance of the component in a circuit. A shorter propagation delay indicates faster signal processing and better overall performance. Designers use this parameter to ensure that signals can be transmitted and received within the required timing constraints in their electronic systems.
23ns @ 5V, 15pF - Power Supply Current-Max (ICC)
The parameter "Power Supply Current-Max (ICC)" in electronic components refers to the maximum amount of current that the component will draw from the power supply under specified operating conditions. It is an important specification as it helps determine the power consumption of the component and ensures that the power supply can provide enough current to meet the component's requirements without being overloaded. Exceeding the maximum power supply current can lead to overheating, component damage, or system failure. Designers use this parameter to select an appropriate power supply and ensure the reliable operation of the electronic system.
51mA - Number of Output Lines6
- Schmitt Trigger Input
The Schmitt Trigger is a logic input type that provides hysteresis or two different threshold voltage levels for rising and falling edge.
No - Features
In the context of electronic components, the term "Features" typically refers to the specific characteristics or functionalities that a particular component offers. These features can vary depending on the type of component and its intended use. For example, a microcontroller may have features such as built-in memory, analog-to-digital converters, and communication interfaces like UART or SPI.When evaluating electronic components, understanding their features is crucial in determining whether they meet the requirements of a particular project or application. Engineers and designers often look at features such as operating voltage, speed, power consumption, and communication protocols to ensure compatibility and optimal performance.In summary, the "Features" parameter in electronic components describes the unique attributes and capabilities that differentiate one component from another, helping users make informed decisions when selecting components for their electronic designs.
Open Collector - Length19.3mm
- Height5.08mm
- Width6.35mm
- Thickness
Thickness in electronic components refers to the measurement of how thick a particular material or layer is within the component structure. It can pertain to various aspects, such as the thickness of a substrate, a dielectric layer, or conductive traces. This parameter is crucial as it impacts the electrical, mechanical, and thermal properties of the component, influencing its performance and reliability in electronic circuits.
3.9mm - 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 - 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
SN7406N CAD Model

SN7406N Symbol

SN7406N Footprint
SN7406N Schematic

SN7406N Schematic
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsLogic FunctionPropagation DelaySupply VoltageQuiescent CurrentSubcategoryMountView Compare
SN7406N
14-DIP (0.300, 7.62mm)
14
Buffer, Inverter, Inverting
23 ns
5 V
32 mA
Gates
Through Hole
14-DIP (0.300, 7.62mm)
14
Buffer, Inverter
26 ns
5 V
1 μA
Gates
Through Hole
14-DIP (0.300, 7.62mm)
14
Buffer, Inverter, Inverting
20 ns
5 V
-
Gates
Through Hole
14-DIP (0.300, 7.62mm)
14
-
22 ns
5 V
-
Gates
Through Hole
SN7406N Datasheet
SN7406N Applications
TTL level to MOS level translator
Indicator lamp and relay driver
Motor driver
How To Use SN7406N
With a TTL logic level input and an open collector output, the SN7406N is a hex inverting buffer. The open-collector output is useful because it allows us to attach an external pullup resistor to any voltage, allowing us to interface between different logic families, such as 5V TTL logic and 15V CMOS logic, by connecting a suitable pull-up resistor to 15V.
A motor driver, a relay coil driver, and a logic level translator are among the application circuits shown in the diagram below.

SN7406N Package information

SN7406N Package information
Popularity by Region
What is the SN7406N?
The SN7406N devices provide high-voltage open-collector outputs for driving high-current loads (such as lamps or relays), as well as inverter buffers for driving TTL inputs.
What can the SN7406N be used to?
SN7406N has many applications. It can be applied to TTL level to MOS level translator, Indicator lamp and relay driver, and Motor driver.
How many pins of SN7406N?
14 pins.
What’s the operating temperature of SN7406N?
0°C~70°C.
What’s the supply voltage of SN7406N?
5V.
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