SCR74B-120

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Fixed inductors, or inductors characterized by a fixed inductance value over its permissible temperature range, are useful components in many applications, being able to act as part of a power supply or to filter or limit frequency. The SCR74B-120 fixed inductor is particularly advantageous for projects using a regulated power supply, in which the transformer secondary current is controlled by inductive chokes.

The SCR74B-120 is a cylindrical inductor with an extended coil form, suitable for mounting in all conventional mounting configurations. It is rated for 120 mH at an insulation voltage of 660 VAC and is designed for horizontal or vertical mounting. Its inductance value is extremely exact for single inductor applications, and it has a tight tolerance and low loss. In addition, it has a maximum current rating of 8.5 A.

The SCR74B-120 fixed inductor is suitable for use in circuits that are able to operate at high temperatures. It is manufactured with an insulating element designed to withstand temperatures of up to 125°C without degradation of performance. This enables it to be used in harsh environments and/or long-term projects where heat dissipation is essential.

In terms of its working principle, the SCR74B-120 fixed inductor behaves much as any other inductor. When current flows through the coil, a magnetic field is created which will oppose any change in the current. This opposition to change is what is known as inductance and is the key to inductors being able to act as filters and limiters in circuits.

The magnitude of the inductance depends on the number and size of turns of wire in the coil, as well as the core material used. With the SCR74B-120, this is fixed so the inductance does not vary with temperature. This makes the SCR74B-120 particularly suitable for use in applications requiring high inductance accuracy or stability.

The SCR74B-120 fixed inductor can be used in a great variety of applications. Due to its very precise inductance value, it is the ideal choice for single-inductor applications, such as high-efficiency DC-DC converters. It is also suitable for use in circuits that require high temperature stability and have a stable power supply, such as audio surge limiters.

In addition, its extended coil form is also suitable for use in radio frequency circuits, providing an efficient antenna for frequencies up to 10 MHz. It is especially useful in portable devices, eliminating the need for bulky antennas.

In summary, the SCR74B-120 fixed inductor is a versatile and high-performing component, which is well-suited to many applications ranging from power supply regulation to radio frequency transmission. Its extended coil form, high insulation voltage rating and high temperature stability make it the perfect choice for many projects.

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