XEUR21D

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The XEUR21D board indicator is a small, low-cost light source used to visually represent values and data by creating patterns on a circuit board, array, light bar, bar graph, and many other types of applications. It features very low energy consumption and a wide viewing angle making it an ideal choice for applications where space is at a premium and where a clear, visible readout is required.

The XEUR21D is composed of multiple light-emitting diode (LED) components arranged in a variety of configurations depending on the user\'s specific needs. The board can be configured with up to eight separate columns and up to three rows of diodes. The power and board pins are clearly marked on the PCB, making it easy for users to wire and integrate into their designs. The XEUR21D has a surface-mountable form factor and comes in several distinct casing styles, allowing it to blend in discreetly with a wide range of designs.

The working principle of the XEUR21D board indicator is based on current control of the individual LEDs. The board requires a constant current source, typically in the range of 8 to 16 mA and up, which is set by adjusting a current-limiting resistor on the board. The current through the diode segment is then varied by adjusting the on/off state of the transistor driver associated with the individual LED element. The brightness of the LED is determined by the current through the LED, which is a function of the current applied to the LED and its forward-voltage ratings.

The XEUR21D board indicator has many potential applications in LED circuits, arrays, light bars, bar graphs, and more. Its low power consumption and wide viewing angle make it ideal for situations where space is at a premium and a highly visible output is desired. Its small form factor, discreet casing, and current-controlled segments make it a great option for adding visual elements to any design. Additionally, its surface-mountable form factor allows it to be easily integrated into almost any design.

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