RN55C4812BBSL

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Through Hole Resistors offer a wide range of applications. One of the most popular and commonly used components used for these applications is the RN55C4812BBSL resistor. In this article, we will look at the various applications and working principles of this resistor.

What Is the RN55C4812BBSL Resistor?

The RN55C4812BBSL resistor is a low-profile, high-precision, surface-mount, thick-film resistor. It is made of a combination of a nickel-chromium (NiCr) alloy, glass, and several layers of silver and metal oxide layers. It has an operating voltage rating of 75V and a resistance value of 12Ω ±1% tolerance. It is rated to withstand up to 20G of vibration without significant change in value and an ambient temperature range of -55℃ to +155℃.

Applications of the RN55C4812BBSL Resistor

The RN55C4812BBSL resistor is used in a variety of applications. Its low profile, high precision, and ability to withstand high vibration make it ideal for use in automotive and power applications. It is also suitable for general-purpose applications. Because of its high precision, it is often used in industrial applications such as process control.

The RN55C4812BBSL resistor is also used in audio and video systems, given its ability to accurately attenuate signals in a wide frequency range. It is also used in telecommunication systems to control the gain of signals. It can be used in medical imaging and military applications for its high-precision and low-profile design.

Working Principle of the RN55C4812BBSL Resistor

The working principle of the RN55C4812BBSL resistor is based on the fact that electrical resistance varies with the material used. The resistor consists of a nickel-chromium (NiCr) alloy, glass, and several layers of silver and metal oxide layers. Electrical current will flow from one end to the other following Ohm\'s law, which states that voltage over a conductor is equal to the current passing through it multiplied by its resistance. The resistor acts as a barrier to this current, causing it to drop in voltage proportional to the resistance of the material.

The resistance of the RN55C4812BBSL resistor is fixed and not adjustable, which makes it ideal for applications where a fixed resistance is required. It has a temperature and voltage coefficient meaning that the resistance will change slightly with changes in temperature and voltage, but the variation will be well within the ±1% tolerance of the resistor.

Conclusion

The RN55C4812BBSL resistor is a low-profile, high-precision, surface-mount, thick-film resistor that is suitable for a wide range of applications. Its low profile, high precision, and ability to withstand high vibration make it ideal for use in automotive and power applications, as well as in general-purpose applications. It is also used in audio and video systems, given its ability to accurately attenuate signals in a wide frequency range. The working principle of the RN55C4812BBSL resistor is based on its fixed electrical resistance, which will vary slightly with changes in temperature and voltage.

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