SPM3012T-3R3M Inductors, Coils, Chokes

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Fixed Inductors are a fundamental element of electronic circuits due to their unique ability to store energy in a magnetic field. It is widely used for signal filtering, low-pass filtration, and tuned radio frequency applications. The SPM3012T-3R3M is a fixed inductor from Diodes Incorporated, providing a variety of features and performance in a simple, low-cost package. This article will discuss the application field and working principle of the SPM3012T-3R3M.

The SPM3012T-3R3M is a fixed inductor with a rated inductance of 3.30 mH, a DC resistance of 0.47mohm, and a DC current rating of 0.60A. It is available in a 1210 size which has a maximum footprint area of only 3.20mm x 2.60mm. The SPM3012T-3R3M is RoHS-compliant, leads-free, and Halogen free, making it a great choice for environmentally-friendly applications.

This fixed inductor is well-suited for RF applications such as low-noise amplifiers, transmitters, and receivers. It is also ideal for power management and power supply applications. Its low DC resistance allows the device to efficiently store energy while its low inductance value ensures a wide bandwidth, reducing circuit components and allowing for lower power consumption. Additionally, because of its small size, it can fit into tight spaces and low profile applications.

The key element of the SPM3012T-3R3M is its winding geometry. This geometry utilizes a combination of high-grade materials and precise winding angles to maintain a constant inductance over a wide range of frequencies, allowing it to perform reliably and consistently in a variety of applications. The device utilizes a helical winding pattern which minimizes the amount of alternating coaxial winding to reduce losses and improve efficiency. The symmetry and proportion of the winding pattern are also carefully optimized to ensure maximum performance at high frequencies.

The SPM3012T-3R3M is designed for operating temperatures between -40°C and 85°C and it has an inductance tolerance of +/-20%. This makes it ideal for a variety of applications where tight inductance tolerances are required such as filtering, voltage regulation, and power management applications. Its robust design also ensures reliable operation in high vibration and shock environments.

In summary, the SPM3012T-3R3M is a fixed inductor from Diodes Incorporated that is ideal for systems requiring tight inductance tolerances in a wide range of frequencies. It is RoHS-compliant, leads-free, and Halogen free, making it an excellent choice for environmentally-friendly applications such as power management, power supplies, and RF applications. Its small size allows it to fit into tight spaces and low profile applications. The winding geometry ensures maximum efficiency at high frequencies and its durable design ensures reliable performance in harsh environments.

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