5520212F

Series:	552
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Color:	Green (x 1), Red (x 1)
Wavelength - Peak:	563nm, 650nm
Configuration:	2 High
Current:	25mA Green, 20mA Red
Millicandela Rating:	10mcd Green, 6.3mcd Red
Viewing Angle:	60°
Lens Type:	Diffused
Lens Style/Size:	Round with Domed Top, 5mm (T-1 3/4)
Voltage Rating:	2.1V Green, 2.2V Red
Mounting Type:	Through Hole, Right Angle

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LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs Light Emitting Diode (LED) is a semi-conductor device that emits light when a voltage is applied. LED’s come in many shapes and sizes, from the small indicator LEDS that can be found on circuit boards to larger arrays of LEDS and even light bars used to create a whole panel of light. They can be used to give visual indication of the state of their associated system.LEDs are usually composed of two pieces of semiconductor material that are capable of conducting current. When an electrical current is applied to the LED, electrons flow through the LED and activate phosphor placed within the LED, making it light up. They\'re perfect as indicators since they require very little power which results in low heat generation and high efficiency. LEDs only require a small voltage to light up and come in many shapes, sizes and colors which can be used for different purposes in a circuit. Most commonly, LED\'s are used as visual indicators on electronic equipment and consumer products. These LED’s can indicate whether a certain element, such as an amplifier or circuit board, is powered on or off. LEDs can also be used to indicate the level of power used by a certain device, such as whether it is in low or high power mode. LEDs also serve as indicators in many consumer products to indicate the status, such as when a battery is low or that a device is charging. LEDs are also commonly used in arrays, often times to light up the entire panel of a device or to signify the level of power used or the level of a certain measurement. For example, many power bars feature a row of LEDs that tell the user how much power is left in the battery. An LED array can also be used in a potable music speaker system to indicate what mode is being used and the volume that is being output. Light bars are also used in various musical equipment and instruments like drum machines, keyboards and synthesizers. They provide a great visual aid when used in these applications, as they enable users to identify the levels and patterns of input they are making. In addition, light bars are used in many gaming systems to indicate the level of power and can even be animated in certain games, such as car racing games. Finally, bar graphs can also be formed using LEDs. These bar graphs are often used to depict the relative level of a measured quantity. In the gaming industry, bar graphs are used to show the amount of health that a character has in game or the fuel remaining in a car during a race. Bar graphs can also indicate certain warnings, such as low fuel or battery level, in portable products. LEDs have become extremely versatile with their many different forms, as they can be used in many applications. LEDs are perfect for indication purposes, as they require very little current, generate hardly any heat and come in a variety of shapes, sizes and colors. Whether it’s the simple indicators found inside a circuit board, a large array of LEDs or light bar used in a keyboard, or a bar graph used to show the level of a measurement, LEDs have become essential for many electronic devices today.

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Part Number	Manufacturer	Price	Quantity	Description