EADCF040GA2

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The EADCF040GA2 is a character and numeric LED display module from Everlight Electronics Technology. Adopting COB packaging, this device is made of four 0.4-inch yellow-green digits and two red diodes with common electronode. It features four-digit common cathode arrangement and zero current setting. The EADCF040GA2 is suitable for several applications, such as kilowatt-hour meter, LCD meter, touch and keypad meter, automatic control device, and process controller.

This device is designed in semiconductor manufacturing process, so it is solid-state and reliable. It has constant current driving and it is a low energy consumption component, so it can enhance the medium and large scale power system, by making them more energy efficient and reducing energy losses. Compact in size, the module offers a viewing angle of over 100° and a luminous intensity of 130mcd.

The EADCF040GA2 is characterized by wide operating temperature range of -40°C to +85°C, and it uses high-intensity LED as its light source. This module can be used with DC power supply, ranging from 4.5V to 16V. Its wide operating temperature range and its low power consumption make it suitable for applications where durability and longevity are very important factors.

The working principle of EADCF040GA2 is based on a light emitting diode (LED). An LED is a semiconductor light source in which a current-conducting semiconductor layer is sandwiched between an anode and a cathode. When a suitable voltage is applied to the semiconductor junction, the electrons in the layer gain energy and they get excited to a higher energy level. When they come back to the normal state, they release the energy in the form of light.

When the EADCF040GA2 is connected to a voltage source, the electrons gain energy and become excited to a higher energy level, which triggers the release of light. The electrons leave the cathode, pass through the gold layer, and enter the gallium layer, where they multiply and fill the hole. The released light is then concentrated into the lens of the device and the emitted light from the lens triggers the galvanic reaction between the anode and the cathode. Thus, the LED light source is activated and the device works.

The EADCF040GA2 is a LED display module that can be used in a wide range of applications. Its advanced packages, zero current setting, and low power consumption make it highly suitable for energy efficient and durable applications like kilowatt-hour meter, LCD meter, touch and keypad meter, automatic control device, and process controller. Furthermore, its wide viewing angle and luminous intensity make it even more suitable for such applications.

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