Littelfuse Inc. HE721C0500

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.

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.

refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

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.

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.

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.

Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

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

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.

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.

Voltage - Rated DC is a parameter that specifies the maximum direct current (DC) voltage that an electronic component can safely handle without being damaged. This rating is crucial for ensuring the proper functioning and longevity of the component in a circuit. Exceeding the rated DC voltage can lead to overheating, breakdown, or even permanent damage to the component. It is important to carefully consider this parameter when designing or selecting components for a circuit to prevent any potential issues related to voltage overload.

In electronic components, "Depth" typically refers to the measurement of the distance from the front to the back of the component. It is an important parameter to consider when designing or selecting components for a project, as it determines how much space the component will occupy within a circuit or device. The depth of a component can impact the overall size and layout of the circuit board or enclosure in which it will be installed. It is usually specified in millimeters or inches and is crucial for ensuring proper fit and functionality within the intended application.

In the context of electronic components, the term "Reference Standard" typically refers to a specific set of guidelines, specifications, or requirements that serve as a benchmark for evaluating the quality, performance, and characteristics of the component. These standards are established by organizations such as the International Electrotechnical Commission (IEC), the Institute of Electrical and Electronics Engineers (IEEE), or specific industry bodies.Reference standards help ensure consistency and interoperability among different components, as they provide a common framework for manufacturers, designers, and users to adhere to. They outline parameters such as electrical properties, mechanical dimensions, environmental conditions, and safety considerations that the component must meet to be considered compliant.By referencing these standards, manufacturers can design and produce components that meet industry-recognized criteria, which in turn helps users select the right components for their applications with confidence. Adhering to reference standards also facilitates regulatory compliance and promotes overall quality and reliability in electronic systems.

"Termination style" in electronic components refers to the method used to connect the component to a circuit board or other electronic devices. It determines how the component's leads or terminals are designed for soldering or mounting onto the circuit board. Common termination styles include through-hole, surface mount, and wire lead terminations.Through-hole components have leads that are inserted through holes in the circuit board and soldered on the other side. Surface mount components have flat terminals that are soldered directly onto the surface of the circuit board. Wire lead terminations involve attaching wires to the component for connection.The choice of termination style depends on factors such as the type of component, the manufacturing process, and the space available on the circuit board. Different termination styles offer various advantages in terms of ease of assembly, reliability, and space efficiency in electronic designs.

Body breadth in electronic components refers to the width of the physical body of a component, such as a resistor, capacitor, or integrated circuit. This measurement is crucial for ensuring proper fit within a circuit board or enclosure. It can affect the component's thermal performance, mechanical stability, and overall compatibility with other components in a design. Body breadth is typically specified in millimeters or inches and is an important factor in the selection and design of electronic assemblies.

The parameter "Physical Dimension" in electronic components refers to the measurable size and shape characteristics of a component. This includes dimensions such as length, width, height, and diameter, which are critical for ensuring proper fit and integration into electronic circuits and systems. Physical dimensions also influence the component's performance, thermal management, and overall reliability in application environments. Understanding these dimensions is essential for designers to maintain compatibility with circuit boards and reduce issues related to space constraints.

Contact resistance refers to the resistance encountered at the point of contact between two conductive materials or components. It is a measure of how well the two materials make electrical contact with each other. High contact resistance can lead to voltage drops, power losses, and inefficient electrical connections. It is typically measured in ohms and is an important parameter to consider in electronic components such as connectors, switches, and relays. Lower contact resistance is desirable for ensuring reliable and efficient electrical connections in electronic circuits.

The measurement of insulation resistance is carried out by means of a megohmmeter – high resistance range ohmmeter. A general rule-of-thumb is 10 Megohm or more.

Contact Current (DC) - Max is a parameter in electronic components that specifies the maximum amount of direct current (DC) that can safely flow through the contact or connection point without causing damage or failure. This parameter is crucial for ensuring the reliability and longevity of the component, as exceeding the maximum contact current rating can lead to overheating, arcing, or even permanent damage. Designers and engineers must carefully consider this specification when selecting components for a circuit to prevent potential issues and ensure proper functionality. It is important to adhere to the manufacturer's guidelines and specifications to avoid any potential risks associated with exceeding the maximum contact current rating.

Sealing in electronic components refers to the process of enclosing and protecting sensitive parts from environmental factors such as moisture, dust, and chemicals. This is essential for ensuring the reliability and longevity of the components. Sealing is achieved through various methods, including the use of potting compounds, encapsulation materials, or hermetic sealing techniques. Proper sealing enhances the performance and durability of electronic devices in demanding applications.

The "Max Current Rating" parameter in electronic components refers to the maximum amount of electrical current that the component can safely handle without being damaged. It is an important specification to consider when designing or selecting components for a circuit, as exceeding the maximum current rating can lead to overheating, malfunction, or even permanent damage to the component. The max current rating is typically provided in amperes (A) and is determined by the component's internal construction, materials used, and thermal characteristics. It is crucial to ensure that the current flowing through the component does not exceed this specified limit to maintain the component's reliability and longevity.

"Throw Configuration" is a term commonly used in the context of switches and relays in electronic components. It refers to the number of positions or states that the switch or relay can be set to. For example, a single-throw (ST) configuration means the switch has only one position, while a double-throw (DT) configuration means the switch has two positions.The throw configuration is important because it determines the versatility and functionality of the switch or relay. Different applications may require different throw configurations to control the flow of current or signals effectively. Understanding the throw configuration of a component is crucial for proper installation and operation within an electronic circuit.

The parameter "Max Voltage Rating (DC)" in electronic components refers to the maximum direct current (DC) voltage that the component can safely handle without being damaged. This rating is crucial for ensuring the proper functioning and longevity of the component within an electrical circuit. Exceeding the maximum voltage rating can lead to breakdown or failure of the component, potentially causing damage to the entire circuit. It is important to carefully consider and adhere to the specified max voltage rating when designing or working with electronic circuits to prevent any potential risks or malfunctions.

A page on a website that allows users to communicate with the site owner. The page has fields for filling in name, address and type of comment. On most company websites, email and mailing addresses are also included; however, the contact form provides an immediate, convenient way for users to ask the company questions.

In electronic components, the parameter "Relay Type" refers to the specific classification or categorization of a relay based on its design, functionality, and application. Relays are electromechanical devices that are used to control the switching of circuits by opening or closing contacts in response to an electrical signal. The relay type typically indicates the specific characteristics of the relay, such as its switching mechanism (e.g., electromagnetic, solid-state), contact configuration (e.g., SPST, DPDT), operating voltage, current rating, and intended use (e.g., power relays, signal relays, automotive relays). Understanding the relay type is important for selecting the right relay for a particular application to ensure proper functionality and reliability.

The time interval between the instant of the occurrence of a specified input condition to a system and the instant of completion of a specified operation.

Coil voltage refers to the electrical potential difference that is applied across the coil of an electromechanical device, such as a relay or a solenoid. This voltage is essential for energizing the coil, creating a magnetic field that enables the device to perform its intended function, such as opening or closing contacts. The coil voltage is specified by the manufacturer and varies depending on the design and application of the component, commonly available in standard values like 5V, 12V, 24V, and others. Proper selection of coil voltage is crucial for optimal performance and longevity of the device.

There are 2 different types of 'coil'; one has copper on it (IUD) and the other contains hormone (Mirena IUS). Both are over 99% effective at protecting against pregnancy.

The maximum switching voltage of a relay is the maximum voltage that can be across the contacts whether the relay is open or closed. Operating a relay with high voltages present can cause arcing, and this in turn erodes the contacts and eventually degrades contact performance.

A current coil is basically a coil, such as, a wire wrapped around an electrical conductor.

In telecommunication, release time is the time interval for a circuit to respond when an enabling signal is discontinued

Must Operate Voltage is the minimum voltage level at which an electronic component or device is guaranteed to function correctly. Below this threshold, the component may experience performance issues, erratic behavior, or complete failure to operate. It is a critical specification for ensuring reliable operation in various applications where voltage variations can occur.

Coil Power in electronic components refers to the amount of power consumed by a coil or inductor when an electrical current passes through it. It is a measure of the energy dissipated as heat within the coil due to its resistance. The coil power is typically specified in watts and is important to consider when designing circuits to ensure that the coil can handle the power without overheating. Properly managing coil power is crucial for the overall performance and reliability of electronic systems.

Must Release Voltage is the minimum voltage level that an electronic component, such as a relay or circuit breaker, requires to safely disengage or reset its mechanical operation. This parameter ensures that the component can reliably return to a non-energized state when power is removed or when a control signal goes low. It is an important specification for ensuring proper operation and safety in electronic circuits where the component may be exposed to fluctuating voltages.

Relay action refers to the type of mechanical movement performed by a relay in response to an electrical signal. It typically describes how the relay transitions between its open and closed states to either allow or interrupt the flow of current in a circuit. Relay action can be classified as normally open or normally closed, indicating the default state of the relay contacts before any current is applied. The speed and responsiveness of this action can significantly affect the performance of the overall circuit in which the relay is used.

The parameter "Coil Voltage (DC)" in electronic components refers to the voltage required to energize the coil of an electromagnetic device, such as a relay or a solenoid, when using direct current (DC) power. This voltage is necessary to create a magnetic field within the coil, which in turn activates the component to perform its intended function. The specified coil voltage must match the power supply voltage to ensure proper operation of the component. It is important to carefully select a component with the correct coil voltage rating to prevent damage and ensure reliable performance in electronic circuits.

Coil/Input Supply Type refers to the voltage and current specifications required to operate the coil in electromagnetic components such as relays and solenoids. This parameter indicates whether the component is designed to operate with AC or DC voltage sources and specifies the nominal voltage level for optimal performance. Understanding the Coil/Input Supply Type is essential for ensuring proper operation and compatibility with circuit designs.

The "PCB Hole Count" parameter in electronic components refers to the number of holes present in the printed circuit board (PCB) that are used for mounting and connecting the component. These holes are typically used for inserting leads or pins of the component and soldering them to the PCB for electrical connection. The PCB hole count is an important specification as it determines how the component will be physically mounted and connected to the circuit board during the assembly process. Manufacturers provide this information to help designers and engineers ensure proper placement and alignment of components on the PCB for optimal performance and reliability of the electronic system.

The parameter "Dielectric Strength Between Open Contacts" in electronic components refers to the maximum voltage that can be applied across open contacts without causing electrical breakdown or arcing. It is a measure of the insulation capability of the material between the contacts. When the dielectric strength is exceeded, the insulating material may break down, leading to a short circuit or other electrical issues. This parameter is important in ensuring the reliability and safety of electronic components, especially in high-voltage applications where maintaining proper insulation is critical. Manufacturers provide dielectric strength specifications to help designers and engineers select components that can withstand the required voltage levels without failure.

Input Switching Control Type refers to the method or mechanism used to control the switching of inputs in electronic components such as switches, relays, or multiplexers. This parameter determines how the selection of different input channels is managed within the component. Common types of input switching control include manual control, where a user physically selects the input channel, and automatic control, where the switching is done based on predetermined criteria or signals. The choice of input switching control type can impact the functionality, flexibility, and ease of use of the electronic component in various applications.

The parameter "Dielectric Strength Between Coil and Contacts" in electronic components refers to the maximum voltage that can be applied between the coil and the contacts without causing electrical breakdown or insulation failure. It is a critical specification that indicates the insulation capability of the component and its ability to withstand high voltage levels. A higher dielectric strength value indicates better insulation properties and increased reliability in preventing electrical arcing or short circuits between the coil and contacts. This parameter is important in ensuring the safe and reliable operation of the electronic component in various applications where high voltages may be present.

Switching current refers to the maximum current that an electronic component, such as a transistor or relay, can handle when transitioning between its on and off states. It is a critical parameter that affects the performance and reliability of the component during switching operations. Exceeding the specified switching current can lead to overheating, damage, or failure of the device. Understanding switching current is essential for designing circuits that operate safely and efficiently.

Switching capacity in electronic components refers to the maximum amount of data or signals that can be processed or switched within a given time frame. It is a crucial parameter that determines the speed and efficiency of the component in handling data transfer or signal switching tasks. A higher switching capacity indicates that the component can handle larger volumes of data or signals more quickly, resulting in faster and more reliable performance. It is commonly measured in bits per second (bps) or in terms of the maximum number of operations per second that the component can perform. Understanding the switching capacity of electronic components is essential for designing and optimizing electronic systems for various applications.

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.

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.

RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

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.

The parameter "Ratings" in electronic components refers to the specified limits that define the maximum operational capabilities of a component. These ratings include voltage, current, power, temperature, and frequency, determining the conditions under which the component can function safely and effectively. Exceeding these ratings can lead to failure, damage, or unsafe operation, making it crucial for designers to adhere to them during component selection and usage.