CIL21J1R2KNE

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Fixed inductors are a common and important electrical component that stores electrical energy and prevents current from changing too quickly. The CIL21J1R2KNE is an advanced fixed inductor from Sumidenso Corporation with some unique features. It is used in power lines, in industrial motors, in power inverters, and other applications.

Design and Features

The CIL21J1R2KNE is a fixed inductor with a black powder-coated thermally conductive case. It has an inductance of 4.7 µH, a maximum direct current rating of 6.0 A, and a 3.0 mm x 6.0 mm body size. It has an internal resistance of 0.4 mΩ, with an impedance of 25.2 mΩ. It has two safety ratings of UL and CSA, a 10KHz frequency rating, and a maximum operating temperature of 125°C. It has an operating temperature range of -40°C to + 125°C, and a 2800M cycle life expectancy.

Applications

The CIL21J1R2KNE is widely used in the automotive, communications, consumer electronics, and more. It can be used in power line applications, DC/DC converters, and other applications that require high current handling in a small package. It is also suitable for wireless chargers and is used to modify inductance in power-supply filter circuits.

Working Principle

The CIL21J1R2KNE works similarly to all other fixed inductors. It “induces” a magnetic field within the core of the device, converting alternating current (AC) power into direct current (DC) power. This is achieved when the device is exposed to a changing magnetic field produced by the flow of electrons through a wire. The induction of the magnetic field then produces a voltage in the wire which in turn produces a current and heat.

In addition, the CIL21J1R2KNE is also equipped with an integrated algorithm that helps reduce inductance discontinuities, decreasing the risk of failure by keeping the inductance level stable. This ensures that the current will not increase or decrease too quickly, reducing the need to make frequent adjustments.

Conclusion

The CIL21J1R2KNE is an advanced, high-quality fixed-inductor component from Sumidenso Corporation. It is black powder coated for thermal conductivity, and features a unique integrated algorithm that helps maintain inductance stability while also reducing inductance discontinuities. It is suitable for various applications, including powerline, DC/DC converter, and wireless charger applications.

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