Littelfuse Inc. MICROSMD500LR-2

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.

In electronic components, the parameter "Size / Dimension" refers to the physical dimensions of the component, such as its length, width, and height. These dimensions are crucial for determining how the component will fit into a circuit or system, as well as for ensuring compatibility with other components and the overall design requirements. The size of a component can also impact its performance characteristics, thermal properties, and overall functionality within a given application. Engineers and designers must carefully consider the size and dimensions of electronic components to ensure proper integration and functionality within their designs.

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

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.

Voltage - Max is a parameter in electronic components that specifies the maximum voltage that can be safely applied to the component without causing damage. This parameter is crucial for ensuring the proper functioning and longevity of the component. Exceeding the maximum voltage rating can lead to breakdown or failure of the component, potentially causing damage to the entire circuit or system. It is important to always operate electronic components within their specified voltage limits to prevent any issues and ensure reliable performance.

Time to Trip is a parameter used in electronic components, particularly in circuit protection devices such as fuses and circuit breakers. It refers to the amount of time it takes for the component to activate and interrupt the circuit when a fault or overcurrent condition is detected. This parameter is crucial for ensuring the safety and reliability of the electrical system by quickly disconnecting power in case of a fault to prevent damage to the components or potential hazards such as fires. The specific time to trip value can vary depending on the application and the level of protection required, with faster trip times being more critical in certain high-risk environments.

Resistance - Initial (Ri) (Min) refers to the minimum resistance value measured across the terminals of an electronic component when it is first tested. This parameter helps determine the baseline performance of the component under nominal conditions. It is crucial for identifying any defects or inconsistencies in the component's manufacturing process. A low initial resistance value may indicate potential issues affecting the component's functionality.

Resistance - Post Trip (R1) (Max) refers to the maximum resistance value measured across the terminals of an electronic component after it has undergone a trip event, such as a thermal or overcurrent protection activation. This parameter indicates the state of the component post-fault condition, helping to assess whether it can return to normal operation. It is crucial for assessing the reliability and safety of components in circuits, ensuring they do not exhibit failure modes that could lead to further issues.

Current - Trip (It) is a parameter commonly found in electronic components such as circuit breakers, fuses, and protection devices. It refers to the threshold current level at which the component will trip or activate to interrupt the circuit and protect against overcurrent conditions. This parameter is crucial for ensuring the safe operation of electrical systems by preventing damage to equipment and minimizing the risk of electrical hazards. By setting the Current - Trip value appropriately, users can customize the protection level based on the specific requirements of their application.

Thickness (Max) is a parameter in electronic components that refers to the maximum allowable thickness of the component. This measurement is important for ensuring proper fit and compatibility within a circuit or device. It is typically specified in the component's datasheet and is crucial for mechanical design considerations, such as determining clearance requirements and ensuring that the component can be properly mounted or soldered onto a PCB. Exceeding the maximum thickness limit can lead to issues such as interference with neighboring components, improper assembly, or mechanical stress that may affect the component's performance or reliability.

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