WP73EB/2IDA

WP73EB/2IDA Application Field And Working Principle

WP73EB/2IDA is a type of LED (Light Emitting Diode) circuit board indicator from the family of LEDs, Arrays, Light Bars, Bar Graphs and other circuit board indicators. It is a general purpose type, bi-color LED and is widely used in industrial audio, automotive and consumer products, for the purpose of indicating in capacitive-sensing touch switches and digital control systems.

The WP73EB/2IDA LED has two distinct LED chips, one red and one green. The LED chips are encapsulated in a clear body and both LED emitters can be simultaneously actuated with logic level voltage (VCC). When the logic level voltage is set to ‘low’, the green LED is illuminated, whilst the red LED is extinguished. The reverse is true when the logic level voltage is set to ‘high’ – the red LED is illuminated, whilst the green LED is extinguished.

Therefore, the WP73EB/2IDA is capable of turning on both of its LEDs independently for one-colour applications, or together for dual-colour applications, determined by logic level voltage. The logic level voltage is a digital input, and when the logic level voltage is set to ‘high’ or ‘low’, the LED will turn on or off respectively.

The WP73EB/2IDA has a maximum forward current of 20 mA and a voltage drop of 2.5V. The reverse voltage rating is 5V and the maximum thermal resistance is 100K/W.

The WP73EB/2IDA’s applications include capacitive-sensing touch switches. In such applications, the two separate LEDs can be used to indicate two different conditions or states – usually either ‘yes’ or ‘no’ - and the use of the two colours allows the two states to be easily distinguishable. Therefore, already at a glance, the user can quickly understand the current status of the system.

The WP73EB/2IDA also has applications with digital control systems. It is particularly useful for applications where the system requires feedback from the user regarding their input, or where the system requires a visual indicator of its current status. It is especially useful for systems requiring feedback from the user based on a ‘yes/no’ response. In the event of the user making an input, the two colours can indicate their response and the system can act accordingly.

Other applications include audio systems, where the two colours can be used to indicate the status of the device. It can also be used in automotive systems, where its two colours can help the driver to identify traffic lights, for example, and similar systems.

In summary, the WP73EB/2IDA is a bi-coloured LED circuit board indicator, capable of simultaneously illuminating either one or both of its two incorporated LEDs via logic level voltage. It is particularly suitable for capacitive-sensing touch switches, digital control systems and applications where visual indication of the system’s status is required.