Shenzhen Yezhan Elec. ASR-M-7-0.2J-t3

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

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, "tolerance" refers to the acceptable deviation or variation from the specified or ideal value of a particular parameter, such as resistance, capacitance, or voltage. It indicates the range within which the actual value of the component can fluctuate while still being considered acceptable for use in a circuit. Tolerance is typically expressed as a percentage or a specific value and is important for ensuring the accuracy and reliability of electronic devices. Components with tighter tolerances are more precise but may also be more expensive. It is crucial to consider tolerance when selecting components to ensure proper functionality and performance of the circuit.

The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter “alpha” (α). A positive coefficient for a material means that its resistance increases with an increase in temperature.

The parameter "Power (Watts)" in electronic components refers to the amount of electrical energy consumed or dissipated by the component. It is a measure of how much energy the component can handle or generate. Power is typically measured in watts, which is a unit of power that indicates the rate at which energy is transferred. Understanding the power rating of electronic components is crucial for ensuring they operate within their specified limits to prevent overheating and potential damage. It is important to consider power requirements when designing circuits or selecting components to ensure proper functionality and reliability.

Resistance (Ohms) is a fundamental property of electronic components that measures their opposition to the flow of electric current. It is denoted by the symbol "Ω" and is a measure of how much a component resists the flow of electricity. The higher the resistance value, the more difficult it is for current to pass through the component. Resistance is an important parameter in determining the behavior and functionality of electronic circuits, as it affects the amount of current flowing through the circuit and the voltage drop across the component. Components such as resistors are specifically designed to provide a certain amount of resistance to control the flow of current in a circuit.

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