Littelfuse Inc. SMCJ48A

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 parameter "Supplier Device Package" in electronic components refers to the physical packaging or housing of the component as provided by the supplier. It specifies the form factor, dimensions, and layout of the component, which are crucial for compatibility and integration into electronic circuits and systems. The supplier device package information typically includes details such as the package type (e.g., DIP, SOP, QFN), number of pins, pitch, and overall size, allowing engineers and designers to select the appropriate component for their specific application requirements. Understanding the supplier device package is essential for proper component selection, placement, and soldering during the manufacturing process to ensure optimal performance and reliability of the electronic system.

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.

The Maximum Operating Temperature is the maximum body temperature at which the thermistor is designed to operate for extended periods of time with acceptable stability of its electrical characteristics.

The "Min Operating Temperature" parameter in electronic components refers to the lowest temperature at which the component is designed to operate effectively and reliably. This parameter is crucial for ensuring the proper functioning and longevity of the component, as operating below this temperature may lead to performance issues or even damage. Manufacturers specify the minimum operating temperature to provide guidance to users on the environmental conditions in which the component can safely operate. It is important to adhere to this parameter to prevent malfunctions and ensure the overall reliability of the electronic system.

Parameter "Composition" in electronic components refers to the specific materials and substances used in the construction of the component. It encompasses the chemical and physical elements that make up the component, influencing its electrical, thermal, and mechanical properties. The composition can affect the performance, reliability, and durability of the component in various applications. Understanding the composition is essential for optimizing the design and functionality of electronic devices.

The parameter "Applications" in electronic components refers to the specific uses or functions for which a component is designed. It encompasses various fields such as consumer electronics, industrial automation, telecommunications, automotive, and medical devices. Understanding the applications helps in selecting the right components for a particular design based on performance, reliability, and compatibility requirements. This parameter also guides manufacturers in targeting their products to relevant markets and customer needs.

The "Power Rating" of an electronic component refers to the maximum amount of power that the component can handle or dissipate without being damaged. It is typically measured in watts and is an important specification to consider when designing or selecting components for a circuit. Exceeding the power rating of a component can lead to overheating, malfunction, or even permanent damage. It is crucial to ensure that the power rating of each component in a circuit is sufficient to handle the power levels expected during normal operation to maintain the reliability and longevity of the electronic system.

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.

The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.

The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.

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.

Leakage current is a term used in electronics to describe the small amount of current that flows through a component when it is supposed to be in a non-conductive state. This current can occur due to imperfections in the materials used to manufacture the component, as well as other factors such as temperature and voltage. Leakage current can lead to power loss, reduced efficiency, and potential reliability issues in electronic devices. It is important to consider and minimize leakage current in electronic components to ensure proper functionality and performance.

The distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.

the process by which an electronic or electrical device produces heat (energy loss or waste) as an undesirable derivative of its primary action.

During fault, the only circuit breaker closest to the fault point should be tripped. The operating time of relay associated with protection of line should be as minimum as possible in order to prevent unnecessary tripping of circuit breakers associated with other healthy parts of power system.

Voltage - Breakdown (Min) is a parameter used to specify the minimum voltage level at which an electronic component, such as a diode or capacitor, will break down and allow current to flow through it uncontrollably. This breakdown voltage is a critical characteristic that determines the maximum voltage the component can withstand before failing. It is important to ensure that the applied voltage does not exceed this minimum breakdown voltage to prevent damage to the component and maintain proper functionality. Manufacturers provide this specification to help engineers and designers select components that are suitable for their intended applications and operating conditions.

Power - Peak Pulse refers to the maximum transient power level that an electronic component, such as a diode or a transzorber, can safely dissipate during a short-duration pulse. This parameter is critical in determining the component's ability to withstand voltage spikes or surges without failure. It is typically expressed in watts and is measured over a specific duration, usually in microseconds or nanoseconds, to reflect the component's performance under peak conditions. Understanding this parameter helps designers select appropriate components for applications where transient conditions are expected.

The parameter "Current - Peak Pulse (10/1000μs)" in electronic components refers to the maximum current that a device can handle during a transient overvoltage event with a specific waveform, typically a 10/1000μs pulse. This parameter is important for surge protection devices such as transient voltage suppressors (TVS) and varistors, as it indicates the device's ability to divert excess current away from sensitive components and protect them from damage. A higher peak pulse current rating signifies better surge protection capability, making the component more suitable for applications exposed to high-voltage transients or lightning strikes. Designers should carefully consider this parameter when selecting surge protection components to ensure reliable operation and protection of their electronic circuits.

Max Reverse Leakage Current refers to the maximum amount of current that can flow through a semiconductor device, such as a diode or transistor, when it is reverse biased. This current is an important parameter as it indicates the level of unintended current that can flow when the device is not conducting in the forward direction. High values of reverse leakage current can lead to power loss, reduced efficiency, and may affect the performance and reliability of electronic circuits. It is particularly critical in applications where precise current control and low power consumption are necessary.

Voltage - Clamping (Max) @ Ipp refers to the maximum voltage that a component, such as a transient voltage suppressor or diode, can clamp when subjected to a specific peak current (Ipp). It indicates the upper limit of voltage that the component will allow to pass through, effectively protecting sensitive circuits from overvoltage conditions. This parameter is crucial for ensuring that devices are safeguarded against voltage spikes without being damaged. Designers use this specification to select appropriate components for overvoltage protection in their applications.

Clamping voltage is a term used in electronic components, particularly in devices like diodes and transient voltage suppressors. It refers to the maximum voltage level at which the component can effectively limit or clamp the voltage across its terminals. When the voltage across the component exceeds the clamping voltage, the component conducts and effectively limits the voltage to that level, protecting the circuit from overvoltage conditions. Clamping voltage is an important parameter to consider when selecting components for applications where voltage spikes or surges may occur, as it determines the level at which the component will start to protect the circuit.

Voltage - Reverse Standoff (Typ) refers to the maximum reverse voltage that a semiconductor device, such as a diode or a transient voltage suppressor, can withstand without entering into breakdown. It is typically specified as a nominal value and indicates the voltage level at which the device transitions from its non-conducting state to a conducting state when reverse-biased. Exceeding this voltage can lead to permanent damage or failure of the component. This parameter is crucial for ensuring the safe operating limits of electronic circuits, particularly in protecting sensitive components from voltage spikes.

The peak pulse power rating of a TVS diode is defined as the instantaneous power dissipated by a device for a given pulse condition, and is a measure of the power that is dissipated in the TVS junction during a given transient event.

Surge current is a peak non repetitive current. Maximum (peak or surge) forward current = IFSM or if(surge), the maximum peak amount of current the diode is able to conduct in forward bias mode.

Peak Pulse Power is a parameter used to specify the maximum amount of power that an electronic component can handle during a transient event, such as a surge or spike in voltage or current. It indicates the maximum power dissipation capability of the component for a short duration. This parameter is important for protecting electronic circuits from damage caused by sudden high-energy events. Peak Pulse Power is typically expressed in watts and is crucial for selecting components that can withstand transient overloads without failing. It helps ensure the reliability and longevity of electronic systems in various applications.

In electronic components, the parameter "Direction" refers to the orientation or alignment in which the component is designed to operate effectively. This parameter is particularly important for components such as diodes, transistors, and capacitors, which have specific polarity or orientation requirements for proper functionality. For example, diodes allow current flow in one direction only, so their direction parameter indicates the correct orientation for current flow. Similarly, polarized capacitors have a positive and negative terminal, requiring proper alignment for correct operation. Understanding and adhering to the direction parameter is crucial for ensuring the reliable and efficient performance of electronic components in a circuit.

Test Current refers to a specified amount of electrical current applied to an electronic component during testing to evaluate its performance and characteristics. This current is typically defined by manufacturers to ensure that the component operates within its designed parameters. By measuring how the component reacts to this test current, engineers can determine its reliability, efficiency, and suitability for specific applications.

Unidirectional channels in electronic components refer to pathways that allow the flow of electrical current in only one direction. These channels are essential in devices like diodes, which permit current to pass through while blocking any reverse flow. Their primary function is to control and direct the flow of electricity, ensuring that circuit operation remains efficient and protects components from potential damage due to reverse currents. Unidirectional channels are commonly used in power supply circuits, signal rectification, and various electronic applications where controlled current flow is crucial.

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.

The "Max Breakdown Voltage" of an electronic component refers to the maximum voltage that the component can withstand across its terminals before it breaks down and allows current to flow uncontrollably. This parameter is crucial in determining the operating limits and safety margins of the component in a circuit. Exceeding the maximum breakdown voltage can lead to permanent damage or failure of the component. It is typically specified by the manufacturer in datasheets to guide engineers and designers in selecting the appropriate components for their 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.

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.