DL4728A-TP

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Diodes are semiconductor devices that allow current to flow through them with only one direction while blocking current in the opposing direction. They can be used in circuits to regulate voltage and protect against overvoltage surges and short-circuiting. Zener diodes, in particular, are used to limit and stabilize voltage in applications where power from a voltage supply exceeds the expected maximum voltage.

The DL4728A-TP is a single Zener diode, which is a type of diode that features Zener breakdown, a reverse breakdown phenomenon that occurs when the voltage across the device exceeds a certain threshold. The threshold for this device is 4.7 V and it is designed to provide a high level of protection from overvoltage in a wide range of circuits, from consumer electronics to automotive applications. Unlike a standard diode, the DL4728A-TP has a reverse breakdown voltage that is specified, making it suitable for applications where a pre-set, stable voltage is required.

The application fields of the DL4728A-TP are vast and include consumer electronics, automobiles, industrial, and communications. Specifically, the DL4728A-TP is commonly used in situations involving controlling or limiting in-circuit voltage, preventing overvoltage in devices such as battery chargers, adjusting voltages in radio equipment, and rectifying overvoltage protection and power supply applications.

The main principle of the DL4728A-TP is to limit or stabilize the voltage across the device by providing a reverse breakdown voltage that is lower than the applied voltage. When the applied voltage exceeds the Zener breakdown voltage, the diode will draw current, limiting the voltage to the breakdown voltage. The amount of current that flows through the diode is proportional to the difference between the breakdown voltage and the applied voltage. This type of diode requires a reverse bias, meaning that the cathode has to be connected to the ground terminal for it to work.

The circuit characteristics of the DL4728A-TP are well-suited to the range of applications that it is used in. It is an excellent choice for controlling voltage in critical applications with linear operation, low leakage current and excellent reverse polarity characteristics. Additionally, the device has low noise and minimal temperature dependant properties.

In conclusion, the DL4728A-TP stands out as an ideal choice for a wide range of applications including consumer electronics, automobiles, industrial and communication machines. The device is well-suited to these applications thanks to its reliable Zener breakdown voltage, low noise and low leakage current that are necessary for voltage regulation and protection. Furthermore, the device offers excellent reverse polarity protection and linear operation for reliable current restriction and voltage regulation.

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