SPM4020T-4R7M-LR

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Fixed Inductors

1. SPM4020T-4R7M-LR

What is SPM4020T-4R7M-LR?SPM4020T-4R7M-LR is a high-performance, high-quality fixed inductor made by Sumida. It is mainly used in various circuits, such as switching power supplies, DC-DC conversion circuits, and so on. It is suitable for use in a wide range of applications, as it has excellent properties such as low DC resistance (DCR) and high inductance (L).

What are the benefits of using SP M4020T-4R7M-LR?SPM4020T-4R7M-LR offers a great many benefits, such as high frequency operation, low EMI/RFI interference, low core loss, and high current carrying capability. It also has a very high temperature coefficient of inductance (TCL) which ensures its consistent performance regardless of sudden temperature changes. The fixed inductor also features an iron-nickel core material which makes for superior thermal stability. The SP M4020T-4R7M-LR is designed to meet RoHS environmental standards.

What are the application fields of SP M4020T-4R7M-LR?SPM4020T-4R7M-LR has a wide range of uses, such as in the automotive, telecoms, consumer, and industrial fields. It is primarily used in the switching power supplies of automotive and telecom applications, as the fixed inductor can store large amounts of energy when required for these types of equipment. Other applications include the manufacturing of power adapters, DC output regulators, electric welding machines, and joystick stabilization circuits.

What is the working principle of the SP M4020T-4R7M-LR? The working principle of SPM4020T-4R7M-LR is based on Lenz\'s Law, which states that when an electric current passes through a coil of wire, it will create a magnetic field. This magnetic field is capable of opposing any changes in the current - be it an increase or decrease. This is achieved by the fixed inductor having the property of inductance, which is the ability to store and release energy in the form of electrical current. When current passes through the inductor, it will resist any changes in the current, while a decrease in the current will cause the inductance to rapidly release the stored energy, resulting in a very sudden transfer of energy.

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