ER1641-684KM

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Fixed inductors refer to a type of passive electronic component that stores energy in the form of a magnetic field. ER1641-684KM is a type of radial-type fixed inductors, with an Aluminum Electrolytic Capacitors (AEC) - Radial 2.5mm Lead Spacing, structurally compact design, to provide a reliable climate sealed solution for use in humidity, high temperatures, and other harsh environment conditions. It can be used in low voltage DC or AC circuit applications, including frequency stability and filtering, as well as output chokes for switching power supplies.

Application Fields:

• Industrial control applications
• RF / Microwave
• Switching power supplies
• Automotive heater control
• Protection circuits
• Medical devices
• Telecommunications

ER1641-684KM inductors are designed for low voltage DC or AC circuit applications. They can be used for a variety of tasks including frequency stability, filtering of alternating currents, output chokes for switching power supplies, as well as for other automotive applications.

Working Principle:

Fixed inductors, such as the ER1641-684KM are composed of two parts: a wire coil and a ferrite core (or bobbin material used as the substrate). The coil winding is formed from the wire which is insulated with enamel or a plastic insulation material.

When a current passes through the wire, it creates a magnetic field that induces energy into the core. That energy is stored in the form of a magnetic field which is theoretically capable of producing an electric field if discharged. As the current in the coil wire increases, so too does the magnetic field, inducing additional energy into the core, and increasing the inductance. This process is known as “electro-magnetism.”

In addition, due to the characteristics of inductors, the energy stored in the form of the magnetised field, is proportional to the square of the current. This is referred to as the “inductive reactance”, which is the amount of energy necessary to maintain the same level of current; higher inductance requires more energy.

This characteristic of the ER1641-684KM fixed inductor also has the property of helping to create a constant voltage in the circuit. This is because the energy stored in the form of the magnetic field is constantly changing with the current. As a result, the voltage over the inductor also changes with the current, forming a low frequency damping effect that keeps the voltage constant..

Other characteristics of ER1641-684KM fixed inductors include a high saturation value, high current stability, a wide frequency range, low self-resonance and low temperature coefficient. This makes them an ideal choice for use in low voltage applications.

The use of ER1641-684KM fixed inductors in electronic applications is increasing as new applications emerge and existing applications require more reliable components. As such, its usage can be seen in a variety of industries, from industrial control applications and telecommunications to RF and microwave applications. It is also used in the automotive industry, in particular for heater control and protection circuits.

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