CDH115NP-221KC

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Introduction to Fixed Inductors

Fixed inductors, also known as fixed coils, are electrical components that are designed to store energy within an electro-magnetic field. These coils are appropriate for use on both alternating current (AC) and direct current (DC) circuits due to their ability to remain relatively constant across a wide range of currents and frequencies. Fixed inductors are widely used in both commercial and military applications to provide power or impedance matching, filtering, and other diverse electrical functionalities.

CDH115NP-221KC Application Field and Working Principle

The CDH115NP-221KC is a general-purpose fixed inductor, which is designed to work over a wide temperature range from -50°C to +125°C. It has a tolerance of ±5% and a maximum DC current rating of 1.1 A.

The CDH115NP-221KC is suitable for a variety of applications, such as regulating the current in switching power supplies, providing radio frequency interference (RFI) shielding, filtering, as well as resonance and dampening applications. It can also be used in high-frequency converter circuits, various types of amplifiers, active low pass filters and other applications for which a high inductance value is required over a wide temperature range.

The working principle of the CDH115NP-221KC is based on the same principle as other fixed inductors. It has two leads – one labeled “+” and the other “-” – which serves as a connection to the power source. When an AC or DC current is applied to the inductor, it creates a magnetic field around the coil, which in turn creates an opposing voltage in the circuit. This effect is usually referred to as inductance or reactance, and it acts as a resistance to the flow of current.

When the current is switched off, the inductor will continue to generate a restoring force, which acts to oppose the stop of the current and return it to its original state. This is referred to as “back EMF”. The inductor has a fixed inductance, and this characteristic makes it suitable for use in fixed-frequency applications, such as in power converters, audio amplifiers, TV receivers, and other related applications.

Conclusion

The CDH115NP-221KC is a general-purpose fixed inductor that has a maximum DC current rating of 1.1A and is designed to work over a wide temperature range from -50°C to +125°C. It is suitable for a variety of applications, such as regulating the current in switching power supplies, providing RFI shielding, filtering, resonance, and dampening applications. The working principle of the CDH115NP-221KC is based on the same principle as other fixed inductors, which is a resistance to the flow of current through the coil.

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