ELM13705BWD

ELM13705BWD is a special type of LED, which is widely used in circuit board indicator, array, light bar, bar graph. It is usually used to give visual indications, alerting of specific state in various applications. This LED is energy-saving and its size is only 3.2mm x 1.30mm so that it can be installed in narrow spaces in systems. The color of it is white and warm white LEDs. To explain its working principle, we need to know the components of this LED first. It typically comprises of 6 pins namely anode, cathode, three connection pins and shield. For stable working, ELM13705BWD requires a constant DC current and correct positive and negative polarities.

The anode is the positive terminal and the cathode is the negative terminal of the LED. When the circuit is turned on and current flows into the anode, it will cause electrons and holes to move in the LED. Since there are many electric charges in the p-type layer, the electrons move towards the anode and pass over the electrode and finally move towards the n-type layer. In the same time, the positive end of the current will also pass over the electrodes and move to the n-type layer. Once the electric charges gathered in the n-type layer, it will cause light to beam out from the light-emitting areas of the LED. Finally, the electric charges can move out of the light through the cathode.

ELM13705BWD is usually used in various applications like in the lighting industry. It can be used as a decorative lighting element to provide a specific accent to the environment, and also used in task lighting to directly illuminate specific items. Since it is a small LED and consumes little power, it can also be applied in motor vehicles, bicycle and so on. Apart from lighting applications, ELM13705BWD can be used in circuit board indicator, array, light bar, bar graph and etc. for visual indication of status in various applications.