T1812-101J

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Fixed Inductors

Fixed inductors, also known as chokes, are used as components in electrical circuits to store energy temporarily in magnetic form. Their main application is in AC circuits, where the inductor acts as a filter or for signal processing. This article will focus on the application field and working principle of theT1812-101J fixed inductor.

Types of Fixed Inductors

A fixed inductor is one whose inductance cannot be changed by adding or removing windings in the same manner as “Variable inductors”. As a result, the inductor can only be used for applications with fixed inductance, such as radio receivers, antenna matching circuits and high frequency circuits.

Classification of Fixed Inductors

Fixed inductors can be classified according to their construction, application, material and shape. They are classified into two main categories, namely "linear inductors" and "non-linear inductors". Linear inductors are composed of a single winding around a core, while non-linear inductors consist of multiple windings or tightly wound spirals. The most commonly used linear inductors are the dry film inductor and the wire-wound inductor.

T1812-101J Application Field

T1812-101J is a wire-wound inductor whose construction consists of an enamel-coated copper wire wound around a ceramic substrate. It is suitable for a broad range of applications, such as surface mount applications, power supplies, portable electronic devices, measurement equipment, automotive electronic systems and high-frequency communications equipment. The T1812-101J has a wide operating temperature range of -40 ℃ to +125 ℃ and is able to withstand high temperatures.

T1812-101J Working Principle

The working principle of the T1812-101J fixed inductor is based on Lenz’s Law which states that the voltage induced in an inductor is directly proportional to the rate of change of current in the inductor. This means that when a change in the current takes place, the voltage induced in the inductor is proportional to the rate of change of that current. This voltage depends on the inductance of the inductor and is given by V=L(di/dt).

Conclusion

The T1812-101J is a fixed inductor that is well-suited for a range of applications, such as surface mount applications, power supplies, portable electronic devices, measurement equipment, automotive electronic systems and high-frequency communications equipment. The working principle of this inductor is based on Lenz’s Law, wherein the voltage induced in the inductor is directly proportional to the rate of change of current in the inductor.

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