PTKM250R-59H

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Fixed inductors are components that store energy in an electromagnetic field. They are typically used for filtering or decoupling and work by suppressing unwanted frequencies or harmonics and controlling the current in an electronic circuit. The PTKM250R-59H is a surface mount, high-temperature, high-frequency inductor from Pulse Electronics that falls into this category. This article will explain the application field and working principles of the PTKM250R-59H.

The PTKM250R-59H has a compact 25.8mm×25.8mm×13.0mm surface mount design and is made from molded black thermoplastic material. The total inductance of the inductor is between 25μH and 250μH, depending on the current rating and temperature range. It is designed to operate in temperatures between -55°C and 155°C, and it has a maximum operating frequency of 4.0GHz. As such, it is often used in applications where size, high temperature requirements, and high-frequency performance are important.

The PTKM250R-59H can be used in a variety of applications, including power circuits, DC/DC converters, portable devices, automotive electronics, and data communication devices. It is well suited for high-current switching, high-frequency noise filtering, and EMI suppression. The device also has very low DC resistance, making it ideal for power circuits that require low switching loss.

The PTKM250R-59H works by storing energy as a magnetic field. When a current is applied to the inductor, it produces a magnetic flux that stores energy. When the current is removed, the magnetic field collapses, producing an electromotive force (EMF) that generates a voltage. This voltage opposes the current, forming what is known as a back EMF. This back EMF is the induced voltage that is produced by the inductor.

The PTKM250R-59H also acts as a filter for unwanted frequencies and harmonics. It is able to do this by suppressing higher-frequency signals and allowing lower-frequency ones to pass. This is known as high-frequency filtering. The device also acts as a decoupling component, preventing unwanted currents from affecting other components in the circuit by limiting the transfer of energy. This is known as decoupling and is especially important in power circuits.

In conclusion, the PTKM250R-59H is a surface mount high-temperature, high-frequency inductor. It has a very small footprint, making it ideal for applications where size is a factor. It is also designed to handle high temperatures, making it suitable for use in automotive and portable electronics. The wide inductance range means it can be used for high-current switching, high-frequency noise filtering, and EMI suppression. The device also acts as a filter for unwanted frequencies and harmonics as well as a decoupling component, limiting the transfer of energy and preventing interference between components in the circuit.

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