42JR15

Through Hole Resistors: 42JR15 Application Field and Working Principle

Through hole resistors are a type of resistor that are mounted into printed circuit boards (PCB) through holes. Commonly used for power dissipative resistors, these resistors are used for general purpose applications and are encased in a cylindrical or rectangular ceramic body that is electrically isolated from the printed circuit board. This type of resistor is commonly used in electronic components due to their longevity and reliability.

The 42JR15 through hole resistor is a two terminal, type-K resistor with an ohmic value tolerance of ±10%. The 42JR15 has a general purpose ceramic body and features a 0.4" diameter and 0.5" long body. The resistance range of the 42JR15 ranges from 680Ω to 9.1kΩ in standard resistance values. This type of resistor is popular in applications such as audio amplifiers, digital audio/video equipment, telecom equipment, medical equipment, and industrial control systems due to its excellent solderability and insulation properties.

The 42JR15 resistors are formed from ruthenium oxide or cermet, which is an insulation material that is embedded with metal particles. This material offers a reliable electrical and thermal performance and is used in a variety of electronic components. The resistance of the 42JR15 is determined by the size, shape, and number of metal particles in the material.

The working principle of the 42JR15 resistor is based on the heating of thin, resistant layers that are laid out over the ceramic bodies. When current is passed through the resistor, it generates heat and causes an increase in resistance. The resistance is proportional to the heat produced, which is determined by the size, shape, and number of metal particles in the material. As the resistance increases, the heat dissipates, which continues the cycle.

The 42JR15 resistors can withstand up to 1W of power, which is sufficient for many common applications. They are commonly used to protect circuits from hazardous currents, to limit current flow in circuits, and to absorb electrical noise. These components are reliable and capable of dissipating heat effectively, making them ideal for electronic components that require power dissipation.