S0603-47NJ2S

Fixed Inductors

A fixed inductor is an electrical storage device used to generate a may flux field around a conducting wire. This flux field will then induce a counter EMF in a second wire. The basic design consists of a coil of wire around a core, usually in the form of a ferromagnetic material that can store magnetic fields. The ferromagnetic core helps to focus the magnetic field created by the coil and is designed to provide higher inductance values.

The S0603-47NJ2S is a fixed inductor model that is designed to be compliant with the EIA-330 50-ohm standard. It is constructed of a molded body and an embedded wire element. The element is wound from a tin-plated copper alloy with a polyolefin insulation outer layer. This inductor has an inductance value of 68 mH with an equivalent series resistance of 0.84 ohm at 1 MHz.

Application Fields

The S0603-47NJ2S fixed inductor is mainly used in radio frequency (RF) circuit designs, either as a filter or a buffer component. In certain applications, it can be used as an impedance matching transformer. It is commonly used in communications systems, such as GSM, LTE, and WiMax, as well as in high-power RF amplifiers and in high-frequency Bluetooth and Zigbee devices.

It is also used in EMI/RFI (electromagnetic interference/radio-frequency interference) suppression in AC/DC adaptors, chargers, game controllers, telecommunication systems, power converters, and power supplies. Additionally, it is widely used in high-current switching power supplies in server and mobile applications.

Working Principle

Fixed inductors work on the basic principle of self-inductance. They are also sometimes referred to as “chokes” due to their ability to prevent AC/DC currents from flowing through circuits. When a current flows through a coil, it creates a magnetic field around the conductor. This field then interacts with the coil to create an opposing voltage. This opposing voltage, or counter-EMF, opposes any changes in current and charging voltage. This helps to stabilize the voltage across the inductor and prevent any sudden changes in current.

The inductor can also be used as a filter to reduce or block out certain frequencies or transient noises. For example, in RF systems, the inductor can be used as a high-pass filter to block low-frequency signals or harmonics from the power line. This helps to reduce the overall noise of the system and improve signal integrity.

The S0603-47NJ2S fixed inductor is suitable for use in a variety of different application fields and provides stable and reliable performance even in harsh environmental conditions.