PWR220T-20-3R00F

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Through hole resistors are common components in electrical and electronic circuits. PWR220T-20-3R00F is one type of through-hole resistors. It is a fixed wire wound power resistor with a metalized ceramic housing.

Typically, the PWR220T-20-3R00F has a 2 watt rating and a tolerance of 3%. It has a resistance range of 3 ohms. The PWR220T-20-3R00F comes in a cylindrical metalized ceramic case with an insulating terminal sleeve and two lead wires. The metalized ceramic case and insulating terminal sleeve provide environmental protection and mechanical strength to the resistor. It is also designed with a high temperature coefficient for improved thermal stability.

PWR220T-20-3R00F is designed to work in high current and power applications. Its low resistance and high temperature coefficient make it well-suited for applications like power supplies, DC/DC converters, medical electrical equipment, and automotive electronics.

In terms of working principle, PWR220T-20-3R00F is designed with a high power-handling capacity. It consists of a fine wire wound on a ceramic core with a hard metal coating. The coated wire and metalized ceramic core together form the structure of the device. The wire is generally made of a high-grade alloy, such as nickel-iron, manganese-copper, chromium-nickel or molybdenum, with a special insulation coating. The metalized ceramic core provides high thermal and electrical insulation.

When a current passes through a wire wound resistor, the increasing temperature of the wire causes it to expand, creating a change in resistance. The metalized ceramic core of the PWR220T-20-3R00F helps to keep the temperature consistent, reducing the amount of change in resistance. The resistor also has a high temperature coefficient, which allows it to provide a stable performance over a range of temperatures.

The PWR220T-20-3R00F is a versatile component that can be used in a variety of applications. It is designed to handle higher power than other types of through-hole resistors and is ideal for power supplies, DC/DC converters, medical electrical equipment, and automotive electronics. It is a reliable and cost-effective component that can provide long-term reliability for applications where power and quality are essential.

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