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Through Hole Resistors

Through-hole resistors are one of the most common and widely used electrical components. They are simple two-terminal electrical components, usually either cylindrical or square in shape, with a metal or ceramic body that is hollow in the center, hence the name “through-hole”. The two leads, usually wired to the body of the resistor, are connected to each other through a hollow center hole, through which electricity can pass.

CFR25SJT-52-2K2 Application Field and Working Principle

The CFR25SJT-52-2K2 are through-hole resistors with a rating of 2k2 ohms, designed for general-purpose applications. The resistors feature a nominal tolerance of ±5%, are constructed with nickel-plated brass leads, and have an operating temperature range of -55°C to +125°C. The standard operating voltage is 150V. The resistors are typically used in applications such as frequency counters, video camera circuits, clock frequency oscillator circuits, HVAC, automotive electronics, medical devices and other general purpose electronics.

A through-hole resistor works by passing a current through resistance material, which creates a voltage drop on the resistor and is proportional to the current passing through it. As the resistance material has a fixed resistance value, the voltage drop will be the same for every current passing through the resistor, thus creating a stable, predictable signal. This stability is why through-hole resistors are used in many applications that require precise, repeatable signal levels, such as frequency counters, video camera circuits, clock oscillators and other devices which must maintain a certain voltage level.

The CFR25SJT-52-2K2 also includes a temperature coefficient rating, which indicates how much the resistance of the device will change when the device\'s temperature changes. As the temperature of the device rises, the resistance of the device increases, which can result in a higher voltage drop than expected across the device. It is important to take into account the temperature coefficient of the resistor when designing circuits such as HVAC or automotive electronics, where the temperature of the components may vary substantially during operation.

Through-hole resistors are a full-size, versatile and reliable type of resistor. The CFR25SJT-52-2K2 is a good choice for general-purpose applications, thanks to its high voltage rating, wide operating temperature range and nickel-plated brass leads. Its high temperature coefficient rating also makes it a good choice for temperature-sensitive applications.

Conclusion

Through-Hole resistors are an essential component of any electrical circuit, providing stable and predictable voltage and current levels. The CFR25SJT-52-2K2 is a through-hole resistor with a rating of 2k2 ohms and a high temperature coefficient rating, making it suitable for general-purpose applications. The nickel-plated brass leads and wide operating temperature range make it an ideal choice for applications such as frequency counters, video camera circuits, clock frequency oscillator circuits, HVAC, automotive electronics, medical devices and other general purpose electronics.

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