Littelfuse Inc. S4010FS21

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.

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.

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

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.

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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, 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.

Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.

Reach Compliance Code refers to a designation indicating that electronic components meet the requirements set by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation in the European Union. It signifies that the manufacturer has assessed and managed the chemical substances within the components to ensure safety and environmental protection. This code is vital for compliance with regulations aimed at minimizing risks associated with hazardous substances in electronic products.

Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.

Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.

a count of all of the component leads (or pins)

An indicator of formal certification of qualifications.

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.

Case Connection refers to the method by which an electronic component's case or housing is connected to the electrical circuit. This connection is important for grounding purposes, mechanical stability, and heat dissipation. The case connection can vary depending on the type of component and its intended application. It is crucial to ensure a secure and reliable case connection to maintain the overall performance and safety of the electronic device.

RMS Current (Irms) refers to the Root Mean Square value of the alternating current flowing through an electronic component or circuit. It is a measure of the effective current that produces the same heating effect as the equivalent DC current. In AC circuits, the current continuously changes direction, so using the RMS value helps in calculating power dissipation and determining the component's capability to handle the current without overheating. RMS Current is crucial in selecting components like resistors, capacitors, and inductors to ensure they can safely operate within their specified current ratings.

the minimum current which must pass through a circuit in order for it to remain in the 'ON' state.

Trigger Device Type is a parameter in electronic components that refers to the type of device or mechanism used to initiate a specific action or function within the component. This parameter specifies the specific trigger device, such as a sensor, switch, or signal input, that is required to activate or control the operation of the component. Understanding the trigger device type is crucial for proper integration and operation of the electronic component within a larger system or circuit. By specifying the appropriate trigger device type, engineers and designers can ensure that the component functions correctly and responds to the intended input signals or conditions.

Voltage - Gate Trigger (Vgt) (Max) refers to the maximum voltage level required to trigger the gate of a semiconductor device, such as a thyristor or triac, into the conductive state. When the gate receives this voltage, it initiates the device's conduction, allowing current to flow between its anode and cathode. Exceeding this voltage can lead to unwanted behavior or damage to the component, making it a critical parameter in designing circuits that utilize these devices. Understanding Vgt is essential for ensuring proper operation and reliability in electronic applications.

The parameter "Current - Non Rep. Surge 50, 60Hz (Itsm)" in electronic components refers to the maximum non-repetitive surge current that a component can withstand without damage during a single surge event at frequencies of 50Hz or 60Hz. This parameter is important for assessing the robustness and reliability of the component in handling sudden spikes or surges in current that may occur in the electrical system. It helps in determining the level of protection needed for the component to ensure its longevity and proper functioning in various operating conditions. Manufacturers provide this specification to guide engineers and designers in selecting the appropriate components for their applications based on the expected surge current levels.

Current - Gate Trigger (Igt) (Max) refers to the maximum gate trigger current required to activate a semiconductor device, such as a thyristor or triac. It is the minimum current that must flow into the gate terminal to ensure that the device turns on and conducts current between its anode and cathode. Exceeding this value can lead to unnecessary power consumption, while insufficient current may prevent the device from turning on effectively. This parameter is crucial for circuit design, as it influences the selection of gate driving circuits.

The parameter "Current - Hold (Ih) (Max)" in electronic components refers to the maximum current required to maintain the component in a latched or on-state after it has been triggered. This parameter is commonly associated with relays, switches, and other devices that have a latching function. It is important because it determines the minimum current that must be supplied to keep the component in its activated state, ensuring reliable operation. Exceeding the maximum Ih value can lead to the component failing to hold its state, potentially causing malfunctions or disruptions in the circuit.

Leakage Current (Max) is a parameter that specifies the maximum amount of current that can flow through an electronic component when it is in an off state. It represents the amount of current that leaks through the component due to imperfections in its insulation or semiconductor materials. Excessive leakage current can lead to power loss, reduced efficiency, and potential reliability issues in electronic circuits. Manufacturers provide this specification to help designers ensure that the leakage current does not exceed acceptable limits for the intended application. It is typically measured in microamps (μA) or nanoamps (nA) and is an important consideration in low-power and high-precision electronic designs.

Non-Repetitive Pk On-state Current, often abbreviated as Non-Repetitive Pk On-state Cur, is a parameter that defines the maximum current that a semiconductor device, such as a thyristor or triac, can withstand for a short duration without sustaining damage. This current level is typically specified under particular conditions and is meant to represent transient events rather than continuous operation. It indicates the device's ability to handle sudden surges in current, which may occur due to load changes or fault conditions, while ensuring that the component does not suffer thermal or electrical breakdown during this brief period.

SCR Type refers to a category of semiconductor devices specifically designed to control and manage electrical energy in electronic circuits. It stands for Silicon Controlled Rectifier, which is a type of thyristor that can switch and control voltage and current flow. SCRs are commonly used in applications such as motor control, power regulation, and lighting control due to their ability to handle high power loads. The SCR Type includes variations like standard SCRs, gate turn-off thyristors, and triacs, each serving specific purposes in power electronics.

The parameter "Voltage - On State (Vtm) (Max)" refers to the maximum voltage drop across a semiconductor device when it is in the on state and conducting current. It is a critical specification for devices such as transistors, diodes, and thyristors, as it affects the overall power loss and efficiency of the component during operation. A lower Vtm value indicates better efficiency, as it leads to reduced power dissipation in the form of heat. This parameter is essential for engineers to consider when designing circuits that require low voltage drops for optimal performance.

The parameter "Critical Rate of Rise of Off-State Voltage-Min" in electronic components refers to the minimum rate at which the off-state voltage of a device must rise in order to trigger a critical event, such as a breakdown or failure. This parameter is crucial for ensuring the reliable operation of the component under various conditions. It helps determine the maximum allowable rate of voltage increase that the component can withstand without experiencing detrimental effects. Manufacturers specify this parameter to guide engineers and designers in selecting and using the component within its safe operating limits to prevent damage or malfunction. Understanding and adhering to this parameter is essential for maintaining the performance and longevity of electronic devices.

The parameter "Current - Off State (Max)" refers to the maximum current that can flow through an electronic component when it is in the off state, typically when the component is not conducting electricity. This specification is important for components such as transistors, diodes, and switches, as it indicates the maximum leakage current that can occur when the component is supposed to be non-conductive. Exceeding this maximum off-state current can lead to unintended power consumption, overheating, or malfunction of the component. Designers need to consider this parameter to ensure proper functioning and reliability of the electronic circuit.

The parameter "Circuit Commutated Turn-off Time-Nom" in electronic components refers to the nominal time it takes for a circuit to turn off after being commutated. Commutation is the process of transferring current from one circuit to another. This parameter is crucial in power electronics, especially in devices like thyristors and other semiconductor switches, as it affects the efficiency and performance of the circuit. A shorter turn-off time typically indicates faster switching speeds and better overall performance of the electronic component. Manufacturers provide this specification to help engineers and designers select the appropriate components for their specific applications.

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.