15-21/GHC-YR1S1/2T

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LED Indication – Discrete

Individually contained LEDs are the most common type of LED in use today and are referred to as discrete LED indicators. LED indicator lights are used to identify the status of a device, such as if it is powered on or off, if a signal is present, or to communicate the state of a system. Discrete LED indicators combine a number of features, such as a miniature sealed package with a built-in lens for directional light output, a single, pole-mounted LED, and are typically operationally to 12V or 24V, making them a very good choice for a variety of applications.

15-21/GHC-YR1S1/2T LED Indicator

The 15-21/GHC-YR1S1/2T is a type of discrete LED indicator with a number of features that make it suitable for a variety of applications. The 15-21/GHC-YR1S1/2T is a single pole mount and features yellow, green, and red LEDs. This indicator features a 9mm/0.4” diameter package, giving it a wide variety of mounting options and a wide viewing angle of 140¬∞. This indicator is rated for -20¬∞C to +55¬∞C, making it well suited for use in most industrial and commercial applications.

Application Fields for 15-21/GHC-YR1S1/2T LEDs

The 15-21/GHC-YR1S1/2T is designed to be an easy to install, low cost and convenient light system. It is suitable for a variety of indoor applications, such as process instrumentation, warning systems & lighting, traffic signals, chemical tanks and a variety of other simple applications. Its wide viewing angle allows it to be used in large open areas, providing good coverage over wide spaces without a significant loss of light. The compact size is also convenient when a large number of indicators are required in a limited space.

Working Principle of 15-21/GHC-YR1S1/2T LEDs

The 15-21/GHC-YR1S1/2T LED indicator utilizes the electrical properties of a LED to create light. LED’s can be placed into two opposing electrical polarities, Anode and Cathode, and illuminate by the movement of Light Emitting Electrons. This process between the two polarities starts when a voltage is introduced, which excites electrons in the anode. The excited electron then releases energy in form of a photon and flows towards the cathode. When the Anode and Cathode are reversed, the electron flow stops and the LED turns off.

The 15-21/GHC-YR1S1/2T requires a voltage of 12-24V, depending on the size of the device, to operate correctly. The polarity of the voltage will determine the color of the LED, red for positive, green for negative. The 15-21/GHC-YR1S1/2T also has two terminals for power input and output, allowing for wiring that is easy and secure.

Conclusion

The 15-21/GHC-YR1S1/2T LED indicator is a type of discrete LED indicator and an ideal choice for a variety of applications, thanks to its miniature size, long life expectancy, wide viewing angle, and its compatibility with a wide range of voltage sources. Its low cost and easy installation make it a popular choice for many applications and its wide range of output colours make it suitable for both indoor and outdoor uses. The 15-21/GHC-YR1S1/2T operates by the movement of Light Emitting Electrons between its two polarities, which is activated and controlled when a voltage is introduced.

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