RN70D3921FBSL

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Through-hole resistors, or THRs for short, are resistors made up of two leads opposite a cylindrical body. They have become one of the most commonly used resistors in the electronics industry, mainly due to their simple construction, ease of component placement, and their high tolerance rating. One of the more popular types of through-hole resistor is the RN70D3921FBSL.

The RN70D3921FBSL is a through-hole resistor which is primarily used in low power, low voltage applications. Typically used in the automotive, aerospace, and telecommunications industries, the RN70D3921FBSL is specifically designed to handle high current and temperature variations. It is rated for up to 5 watts of power and temperatures between -55 and +175 degrees C.

The RN70D3921FBSL is a metal oxide film resistor and it has an Ohmic value of 3921 Ohms and a tolerance of +/- 5%. It also has a maximum working voltage of 250 V and a maximum working temperature of 175 °C. The resistor is also covered with a white paint, further enhancing its durability.

The working principle of the RN70D3921FBSL is simple: The resistor uses the resistance of the metal oxide film to reduce current output. When electricity passes through the metal oxide film, resistance increases, thereby reducing the overall output current. The actual Ohmic value of the resistor is determined by the thickness of the film and the length of the leads.

The RN70D3921FBSL is a popular component used in applications such as voltage regulation, lighting control, filtering, and temperature control. It is typically used in automotive systems, including braking systems, audio systems, and navigation systems. In the aerospace industry, they are often used for controlling fuel, oxygen, and temperature systems. In telecommunications, they are used for power protection and filtering.

Overall, the RN70D3921FBSL is an ideal component for low power, low voltage applications. With its high tolerance rating, simple construction, and ease of component placement, it has become one of the most commonly used through-hole resistors in the electronics industry today.

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