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Fixed Inductors

Fixed inductors are used in both analog and digital circuitry and have a wide variety of functions. They can store or release energy and are used in switched-mode power supplies (SMPS) and Power Management Integrated Circuits (PMICs). They are also found in cell phones, high-definition TVs, and other consumer electronics. The LHL10TB154J fixed inductor is employed most often in audio-frequency circuit applications. It can handle a maximum of 1.7 amperes DC at a minimum switching frequency of 10 Mhz and starts operation at the rated voltage as low as 2.3 volts. Additionally, its small size of 0.75mmX2mm makes it ideal for use in space-limited applications such as cell phones and audio frequency circuits.

Application Field

The LHL10TB154J can be used in many interchangeable audio-frequency circuit applications. This device is especially helpful in applications where a space-confined, low power inductor is required. The operating temperature range for this inductor is between -40 degrees Celsius to + 130 degrees Celsius. The primary application of this inductor is in consumer electronics and communications. Because of its small size and high power capabilities, it can also be used in cell phones, tablets and other space-limited devices.

Working Principle

In simplest terms, the working principle of a fixed inductor is to store and release energy in the form of electrical current. The total current flowing through the inductor will be equal to the sum of the changes in the current, in both directions, at each step. In other words, when a current is flowing through the inductor, the amount of current remaining in the inductor for each cycle is proportional to the overall current at each step. Essentially, the inductor behaves like an AC transformer, in that it can store and release energy in both directions, depending on the impedance.

The LHL10TB154J, in particular, has an impedance of 5.2 Ohms, allowing it to store and release energy with a minimum of loss. It also has a very low DC resistance and low leakage current, making it ideal for applications which require high current density. Additionally, this inductor is designed to operate within a wide temperature range, making it suitable for use in both mobile and stationary applications.

Conclusion

Fixed inductors are small devices which can be used in a variety of applications for storing and releasing energy. The LHL10TB154J fixed inductor is designed specifically for use in audio-frequency circuit applications, with a maximum current of 1.7 amperes DC and a low power consumption. Its wide temperature range and very low DC resistance and leakage current make it especially suitable for use in space-limited devices such as cell phones and other consumer electronics.

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