ER1840-37JR

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Fixed inductors are electrical components primarily used in low-frequency and high-amplitude applications like radio frequency tuning and power supply decoupling. They are made up of a coil of wire wrapped around a core comprised of ferrite or powdered iron in order to create an inductance. Fixed inductors are a component of electrical circuits, and as such, it is important to understand the various types, their application field and working principles in order to use them correctly.One type of fixed inductor is the ER1840-37JR, which is a small, low-profile surface mount inductor with a high-quality construction designed to meet the most demanding requirements. This type of inductor is designed specifically for use in mobile applications, such as mobile phones and other handheld devices.The ER1840-37JR is designed with a low profile, making it ideal for use in space-constrained applications. It has a high-high-powered operation, making it well-suited for use in high-performance audio filtering and power-hungry applications. Additionally, the ER1840-37JR is designed with excellent EMI immunity, making it a great choice for audio systems.The ER1840-37JR features an inductance range of 1.5µH to 12µH. This allows for a wide variety of applications, such as DC-DC converters, switched mode power supplies, resonance circuits, and radio frequency filtering. The ER1840-37JR also features a low DC resistivity which minimizes power losses, making it a great choice for power supply applications.The ER1840-37JR has a working temperature range of -40°C to + 85°C. This allows for reliable operation in extreme temperatures, making it suitable for a variety of applications. Additionally, the ER1840-37JR has a low thermal resistance, meaning it can dissipate heat quickly and efficiently.The ER1840-37JR features a high-Q inductance, meaning it has a higher inductance per unit volume than other inductors, allowing it to help minimize circuit board size and cost. Additionally, the high-Q inductance also contributes to reliable AC performance, making it more efficient in suppressing EMI noise.The working principle of the ER1840-37JR is based on Faraday’s law of induction. When a changing magnetic flux passes through a conductor, an induced voltage is generated. This is known as self-inductance, and it is the principle behind how inductors work. The ER1840-37JR uses a coil of wire wrapped around a ferrite or powdered iron core to create an inductance. The coil is then connected to a circuit, and when a current is applied, a voltage is induced across the coil.The ER1840-37JR is an excellent choice for a wide variety of applications, due to its small profile, high power operation, and efficient heat dissipation. Its wide inductance range makes it suitable for applications such as DC-DC converters, switched mode power supplies, resonance circuits, and radio frequency filtering. Additionally, its high-Q inductance helps to minimize the size of the circuit board and costs, while also providing reliable AC performance and EMI immunity. Finally, it’s suitable for a range of temperatures, meaning that it can be used in even the most extreme environments.

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