TE Connectivity 532436-1

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.

Resistance is a fundamental property of electronic components that measures their opposition to the flow of electric current. It is denoted by the symbol "R" and is measured in ohms (Ω). Resistance is caused by the collisions of electrons with atoms in a material, which generates heat and reduces the flow of current. Components with higher resistance will impede the flow of current more than those with lower resistance. Resistance plays a crucial role in determining the behavior and functionality of electronic circuits, such as limiting current flow, voltage division, and controlling power dissipation.

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.

Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance. A gold tolerance band is 5% tolerance, silver is 10%, and no band at all would mean a 20% tolerance.

Product Length in electronic components refers to the physical measurement of an electronic part from one end to the other along its longest axis. It is a crucial specification that helps in determining compatibility with circuit boards, enclosures, and other components. Understanding the Product Length is essential for ensuring proper placement and assembly within electronic designs.

In electronic components, "Product Width" typically refers to the physical width or diameter of the component. It is an important parameter as it determines the size and form factor of the component, which in turn can impact its compatibility with other components or devices. The product width measurement is usually specified in millimeters or inches and is crucial for ensuring proper fit and alignment within a circuit or system. Designers and engineers often consider the product width along with other dimensions to ensure that the component will function correctly within the intended application.