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Fixed Inductors

Fixed inductors, also referred to as choke inductors, are passive electrical components used to add inductance to a circuit. They are available in a wide range of sizes, shapes, and coefficient of inductance depending on the circuit design. Fixed inductors can be found in a variety of applications, from radio frequency systems to power supplies, oscillators, and various automotive, industrial, and telecommunication segments.

B82442T1273K050 Application Field and Working Principle

The B82442T1273K050 is a fixed inductor developed by Epcos, a leading manufacturer of electronic components. This device features a high inductance of 12 H, a high saturation flux density of 7.7Oe, and an N45 grade of ferrite core material. It is capable of excellent frequency and current rate performance, making it suitable for a range of applications in the aerospace, automotive, industrial, and telecommunications industries.

The B82442T1273K050 operates on the principle of electromagnetic induction. When a changing current flows through the inductor’s winding, it generates a magnetic field that induces a voltage across the inductor, directly proportional to the rate of change of the current. This induced voltage will oppose the source voltage, thus countering any increase in the current and energy. In essence, it acts as an energy storage element in the circuit.

The B82442T1273K050 inductor is typically used in the following applications:

• Power supplies
• Radio frequency systems
• Oscillators
• High-voltage surge protection circuits
• Access control systems
• Automotive systems
• Industrial and telecommunications equipment

In terms of physical construction, the B82442T1273K050 features two parts: a body and a metal ferrite core. The body is composed of a metal shell filled with epoxy material, designed to protect the device from the environment and provide mechanical strength. The core is usually comprised of a rare-earth material with excellent magnetic properties. Both materials boast excellent thermal conductivity, allowing the device to dissipate heat quickly and maintain a low temperature.

Due to their high inductance values and stable performance, fixed inductors are often required in circuits where signal frequency and magnitude must be controlled and maintained. As such, they make an ideal choice for a variety of industrial and commercial applications.

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