JANTX1N4490US

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Introduction

The JANTX1N4490US is a single-chip, 300mA 5.2V Zener diode. It is designed for use in the plate of RF circuits, cellular phones, laptops and other digital signal circuits. This diode can handle a wide variety of signal voltages, including signal levels ranging from 1.2V to 4.2V, up to a maximum of 5.2V. It is also able to withstand temperature extremes from -55°C to +125°C.

Application Field

The JANTX1N4490US diode is ideal for use in the plate of RF circuits, cellular phones and laptops. It is also commonly used in digital circuitry because it can handle a wide range of signal voltages, from 1.2V to 4.2V, up to a maximum voltage of 5.2V. This diode can also withstand temperature extremes from -55°C to +125°C.

The JANTX1N4490US diode can be used in a variety of other applications, such as surge protection, battery protection and overvoltage protection. It can also be used for protection against electromagnetic interference (EMI), which can interfere with the operation of electric and electronic circuits. The diode is also ideal for use in transient voltage suppression in electrical and electronic applications.

Working Principle

The JANTX1N4490US Zener diode works on the principle of P-N junction. A P-N junction is created when two positively and negatively doped parts of semiconductor material are joined together. The two parts of the diode include a larger region of positive type material, called the anode, and a smaller region of negative type material, called the cathode. When a voltage is applied to the diode and exceeds the diode\'s breakdown voltage (Vz), the Zener effect occurs, and current begins to flow from the anode to the cathode.

The Zener effect causes a large reverse current to flow from the cathode to the anode, which creates a potential across the diode. The voltage of this potential is the Zener voltage (Vz), which is the voltage at which the diode begins to function as a reverse bias diode. The circuit then creates a regulated voltage that is equal to the Zener voltage.

Conclusion

The JANTX1N4490US diode is a single-chip, 300mA 5.2V Zener diode. It is designed for use in RF circuits, cellular phones, laptops and other digital signal circuits, as well as in applications requiring surge protection, battery protection, overvoltage protection and transient voltage suppression. It is able to handle a wide variety of signal voltages and temperatures extremes. The diode works on the principle of the P-N junction, where a large reverse current flows from the cathode to the anode when the break-down voltage is exceeded, generating a regulated voltage equal to the Zener voltage.

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