TLHK4200

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TLHK4200 can be classified as a discrete LED indicator. It is essentially composed of four segments of 2200ohm forwards current(IF) rate for each segment. This device is commonly used for general lighting applications and is also implemented in various products such as automotive brakes, signals and excitation systems.

Applications

TLHK4200 is mostly used in the application of general lighting where it provides a bright indication. Its output is highly visible even in direct sunlight. Moreover, its small size and low cost make it an ideal solution for applications where space is a constraint. Apart from being used in lighting applications, this LED Indicator is also used in automotive applications like tracking, reversing and backup lights, brakes, signals and excitation systems.

This device also finds application in the lighting system of commercial and residential buildings like restaurants and malls. It is also used in the medical field in patient monitoring systems. Other applications includes appliances and toys, where it helps to indicate battery strength.

Working Principle

The TLHK4200 LED Indicator is composed of four segments for each unit. Each of these segments has a preset forward current(IF) rate of 2200 ohm. The device integrates three main components: a resistor, a diode and a capacitor. When power is supplied, the resistor limits the current to the diode. This supplied current is then passed through the diode, producing light. The capacitor then stores the current, making the light brighter and more visible.

TLHK4200 works on a principle of matter-energy interaction. Matter is converted directly into energy and vice-versa, such that the chemical/electrical energy within the device is converted into light energy. The light produced by this device is visible and widely used in various common electronic appliances.

Apart from using it to indicate the status of an application, the TLHK4200 can also be used to produce various signals and sounds. It functions within a given frequency range and can be used as an oscillator. The device is also capable of detecting various light patterns and can be used in motion sensor applications.

In addition, the TLHK4200 is non-volatile, meaning it retains its settings even when the power is cut off from the circuit board. This feature allows the device to be used in alarms, which can function even when no power is supplied.

In summary, the TLHK4200 LED indicator is a discrete device that is widely used for its better lighting and indication. Its low cost and power-saving features combined with its small size makes it ideal for use in many applications, from general lighting to automotive functions.

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