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Through Hole Resistors

PNP1WVFR-52-25R application field and working principle

Through hole resistors are a type of resistor that are mounted directly to printed circuit boars (PCB) by being soldered onto the board. A through hole resistor typically consists of a ceramic and non-flammable resistive material that is encased in an insulating material. The through hole resistor also has two electrical connections on its body that are soldered to the PCB. Through hole resistors are typically used for components that do not require frequent replacement. They are a popular choice for many applications due to their relatively low cost and simple installation process.

The PNP1WVFR-52-25R is a through hole resistor with a 1 watt rating and a 25-ohm resistance value. This resistor is designed and manufactured by Ohmite, one of the leading manufacturers of resistors in the world. It is a general-purpose resistor used for various applications, including power supplies, motor control boards, radio receivers, and audio equipment. It is designed to operate in a temperature range of -55 to +200 degrees Celsius.

The main purpose of the PNP1WVFR-52-25R is to protect circuits from damage caused by over-currents and short circuits. The resistor works by limiting the amount of current that flows through the circuit. When the current exceeds a certain level, the resistor will dissipate the excess energy in the form of heat. This ensures that the rest of the components in the circuit are protected from the surge.

The resistor is also designed with an internal safety feature that prevents the resistor from overheating. The safety feature utilizes a metal strip on the resistor that expands when the temperature reached a certain level. This expansion causes the resistor to increase its resistance, thereby preventing further overheating. This safety feature prevents damage to the resistor and any other components that may be connected to it.

In addition to its safety features, the PNP1WVFR-52-25R also offers high accuracy and reliability. It has a low tolerance range of just ±1%, meaning that it is more accurate than most other types of resistors. This makes it an excellent choice for applications requiring high levels of accuracy and reliability. The resistor also has a storage temperature range of -55 to +200°C, making it suitable for use in environments with extreme temperatures.

The PNP1WVFR-52-25R is an excellent choice for a wide range of applications. It is reliable, accurate, and designed to operate in high temperature environments. Its safety features ensure that it can be used without worry of damage or overheating. It is also relatively inexpensive compared to other types of resistors, making it an ideal choice for cost-sensitive applications.

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