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LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs

LEDs, or Light Emitting Diodes, are a type of current-driven silicon device that, when charged, emits a bright, colored light of wavelengths specific to the type of LED. The theoretical maximum current that can be generated by a single LED is limited, typically between 20 and 35 mA. Different types of LEDs allow for different currents, brightnesses, voltages, and wavelengths. For example, some LEDs generate a white light while others generate a red, green, or blue light. Some even create a light of multiple colors. LEDs come in a variety of sizes and shapes, from tiny 0.5 mm chips to larger arrays up to 40 mm.The 5500001865F, or Turret Lens/GrandAm 12V Bulb/Regulated 350 mA Dip, is a type of LED indicator for circuit boards. This LED is designed for 12V and has a regulation dip of 350 mA. The lens of the LED, composed of a plastic cone, is designed to provide visibility from the side of the board and the clear bulb of the LED allows the user to easily observe the light from the source. This LED is commonly used in automotive and industrial applications, as it is resistant to harsh environmental conditions such as humidity, dust, and chemical exposure.The working principle of an LED is a simple one; when a forward current is applied to the anode and cathode, a voltage drop occurs across the diode. When the voltage across the diode reaches the forward voltage or “threshold voltage” of the diode, a small amount of current is allowed to flow. This current flow creates a photon of light, giving the LED its characteristic glow. The characteristics of the emitted light depend on the type of semi-conductor material used in the LED, with some materials emitting infrared light, others visible light, and some producing ultraviolet light.To ensure that the voltage and current levels from the LED are correct, it is important to use a voltage regulator to control the LED. This allows for a constant light output, and avoids the LED becoming too hot, which can reduce its life. Additionally, an LED with a 300 mA current draw should have a resistor applied in series with it to prevent it from drawing too much current.In conclusion, the 5500001865F is an LED indicator for circuit boards designed for 12V and with a 350 mA regulation dip. Its turret lens provides visibility from the side of the board and its clear bulb allows the light to be observed easily. The working principle of an LED is based upon the principle of a voltage drop when a forward voltage is applied to the LED. To avoid overloading the LED and preserve its life, it is important to use a voltage regulator and resistor to control the LED power. By following these precautions, the 5500001865F can provide simple and efficient lighting solutions for a variety of applications.

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