JANTX1N4988

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Diodes have become a fundamental building block of the modern electrical world. The JANTX1N4988 is a single Zener diode designed for use in high-frequency applications. It is a quick zener breakdown, meaning it is designed to switch from the non-conductive to the conductive state quickly when a voltage is applied.

The JANTX1N4988 is a single Polarized Zener diode. It has a power rating of 350mW and a voltage rating of 4.7V. The diode features a reverse standoff voltage of 4V, a low leakage current of 0.8 µA at 1mA, a breakdown voltage tolerance of -5% to +9%, a PN junction capacitance of 0.2 pF, a reverse current of 3mA, and a reverse recovery time of 0.9 µs. It also features an I-V curve which shows the current flowing through the diode as the voltage across it increases.

The JANTX1N4988 is most commonly used in power supplies, voltage regulators, and clamping circuits, as it works well in controlling the current and voltage in these applications. It is also used in surge protection circuits, as its quick zener breakdown allows for fast response times when a sudden surge in voltage is detected.

The most common application of the JANTX1N4988 is as a voltage regulator. As the voltage across the diode increases, it begins to conduct current at a certain point, allowing the current and voltage to be precisely regulated. This is due to the I-V curve of the diode, which is designed to be linear up to the breakdown voltage. This ensures that the output voltage remains constant, regardless of changes in the input voltage.

The JANTX1N4988 also finds use in surge protection circuits. When a sudden surge in voltage is detected, the diode quickly switches to the conductive state, allowing the excess voltage to be diverted away from the main current. This protects the components and circuits from damage due to over-voltage.

The working principle of the JANTX1N4988 is based on the I-V curve of the diode. As the voltage across the diode increases, it reaches a certain point at which it begins to conduct current. This allows for the precise regulation of current and voltage in applications such as voltage regulation and surge protection. By controlling the current and voltage, the device is able to provide protection from damage due to over-voltage and other electrical problems.

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