SP1812R-154K Inductors, Coils, Chokes

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Fixed Inductors are fundamental components in many electronic circuits, used for production of signals, and often used for tuning and filtering applications. SP1812R-154K is a fixed inductor produced by Sunlord. This component is designed for use in high-frequency switching power supplies and variable-frequency.

Application Field

The SP1812R-154K fixed inductor is specifically designed for use in switchmode power supplies found in most consumer and industrial electronic equipment. This product is optimised to provide exceptional high frequency permeability and low core losses. It is provides up to 97% efficiency and superior filtering characteristics with a nominal inductance of 150µH and a DC resistance of 0.11 ohm. Moreover, the operating temperature range of SP1812R-154K is from -25C~+85C, and is can therefore be used in commercial, industrial, and automotive applications, as well as for audio systems in medical and automotive electronics.

Working Principle

SP1812R-154K fixed inductors generate an electrical field when current is passed through its coils. This applied current causes a magnetic field to form which is called the inductive reactance. Inductive reactance opposes the voltage changes of the applied frequency and is measured in Ohms. The higher the frequency, the greater the reactance.

The inductor stores energy over a wide range of frequencies, from low frequencies to high frequencies. At low frequencies, the reactance of the inductor is relatively low, and the voltage across the inductor is equal to the applied voltage. At high frequencies, the reactance of the inductor is much greater, and the voltage drops fast. Thus, the inductor acts as a filter and prevents the high-frequency noise signals from the switchmode power supply from entering the system and damaging the sensitive components.

Conclusion

SP1812R-154K fixed inductor is a great choice for supply switchmode roads, power supplies, AC/DC converters and other applications. It provides up to 97% efficiency and superior filtering characteristics with a nominal inductance of 150µH and a DC resistance of 0.11 ohm. The operating temperature range of SP1812R-154K is from -25C~+85C, and is can therefore be used in commercial, industrial, and automotive applications, as well as for audio systems in medical and automotive electronics.

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