APDA3020ZGCK Optoelectronics

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LED is a solid-state semiconductor device that converts electrical energy into light energy. Since the invention of LED, it has been widely used in various application fields, such as indicators, displays, decorative and other light emission, as well as light sensing applications. LED Indication - Discrete includes LED indicators that are specifically used to identify status of an equipment or situation that requires abstract identification. APDA3020ZGCK is a discrete LED indicator which is often used to indicate working status of various devices or systems. This article explains the application field and working principle of APDA3020ZGCK.

APDA3020ZGCK is a 0.4 inch, 12V, orange double-color LED indicator. It is widely used in home appliances, computers, electronics and other industries. It is usually installed next to the power switch or the power socket to indicate the power supply status of the device. It is also used in computers and other systems to show the presence of power, system working status amd disk activity. It indicates the power status in a very intuitive way. It also reduces false operation of the equipment caused by dim light. Since it is designed for 12V voltage, it uses a current limiting resistor and a diode to reduce the operating voltage to pass through it, consuming less than 10 mw of power. It also has a long service life and good stability, which is suitable for the long-term power-on application.

APDA3020ZGCK is composed of two parts: case and diode. The outer case of the indicator is made of metal, which has strong oxidation resistance, anti-collision, dust-proof and water-proof. The diode is made of a high-efficiency GaAsP (Gallium Arsenide Phosphide) led chip. It is a small chip composed of a PN junction and a positive electrode, which converts the electrical energy into light energy and emits light when there is an electric current passing through. The PN junction is designed to generate forward bias voltage to achieve light emission. The color of LED light is determined by the LED material and its PN junction potential value.

The working principle of APDA3020ZGCK is very simple. When the power is supplied, the current generated by the power supply passes through the LED anode, and the LED emits a bright orange light. When the current passes through the LED circuit, the PN junction produces the forward bias voltage, the light is re-emitted, and the LED exhibits its indicator effect. When the current is cut off, the diode disconnects the power supply, and no current passes through the LED, and the LED turns off.

APDA3020ZGCK can be widely used in various electrical applications. It is mainly used to indicate the presence of power, system working status and disk activity. In daily life, these LED indicators are often used as power indicators in household appliances and other products. They can also be used in computers, peripheral equipment and communication equipment to indicate their working situation. Furthermore, they are also used in medical adapters, DC power supplies, and various personal in-vehicle electronic products to indicate the power status.

APDA3020ZGCK is simple to install and use. When installed, the anode of the LED must be connected to the positive power supply and the cathode to the negative. It will also work with normally open contacts, normally closed contacts and Reed switches, as long as they are correctly connected and correctly powered. Once correctly connected, the LED indicator will be lit, indicating that the device is powered on or the system is functioning normally. This discrete LED indicator is also equipped with an IC that can reduce the interference of electromagnetic radiation, which further increases the stability of the indicator.

In summary, APDA3020ZGCK is a discrete LED indicator that can be used to indicate working status of various devices or systems. It is made of high-efficiency GaAsP LED chip and enclosed in a metal case for strong oxidation resistance, anti-collision, dust-proof and water-proof. It is powered by 12V voltage and consumes less than 10 mw of power. It is simple to install, and the indicator can indicate the presence of power, system working status and disk activity with a bright orange light.

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