Fixed Inductors

Fixed inductors are electronic components that store energy, which are commonly used in DC-DC converters, power supplies, and other areas of electronics that include power conversion, telecommunications, and high frequency switching. In this article, we will explore the S0402-33NJ1 fixed inductor and discuss its application and working principles.

Description

The S0402-33NJ1 fixed inductor is a miniature surface mount part. It is a thin-film technology, constructed with copper foil and an insulation layer of PTFE, allowing for high temperature stability and performance in a robust package. The S0402-33NJ1 provides very reliable inductance and frequency performance up to 1GHz, which makes it suitable for a wide range of communications and control applications.

The S0402-33NJ1 also features a wide operating temperature range of -40°C to +105°C, with a storage temperature of up to +125°C. The device has a maximum zero-ohm impedance of 3.0A, in addition to a self-resonant frequency of 2.2GHz.

Application

The S0402-33NJ1 offers excellent performance in a wide range of applications. Its wide operating temperature range and high frequency performance make it suitable for use in telecom and datacom modules, including GSM/CDMA, Ethernet, and 802.11 based solutions. Its reliable inductance performance and high self-resonance frequency also make it suitable for RF/microwave filters, electronic scanning, and high frequency switch mode power supplies.

The device is also ideal for automotive applications, such as engine control systems, as its rugged design, high temperature stability, and small size make it ideal for environments subjected to extreme temperatures which range from -40°C to +105°C.

Working Principle

An inductor works by storing energy in a magnetic field when a current passes through it. This stored energy can be released at a later time when the current changes direction. The amount of energy stored is calculated by the equation We=1/2 * LI², where L is the inductance of the part and I is the current flowing through it.

The S0402-33NJ1 fixed inductor stores energy in a tightly wound copper wire coil. This creates a magnetic field which is proportional to the amount of current passing through it. As the current through the coil increases, the intensity of the magnetic field increases, and the inductor stores more energy. This stored energy is released when the current reverses direction.

Conclusion

The S0402-33NJ1 fixed inductors are excellent components offering high temperature stability, frequency performance up to 1GHz, and reliable inductance performance due to their thin-film construction. This small component is ideal for use in telecommunications, automotive, power conversion, and high frequency switch mode power supplies.