JANTX1N4485US

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Diodes are an important element of a wide array of electrical components. Diodes act as one-way gates for electrical current, only allowing current to flow in one direction. Zener diodes are a specialized type of diode that allows current to flow in either direction, but only operates under special conditions. The JANTX1N4485US is a single zener diode, and provides a range of application fields and working principles.

Applications

JANTX1N4485US zener diodes are typically used in power circuits as a noise filter or voltage surpressor due to its ability to maintain a constant voltage. Due to its reliability and small size, it is often used for voltage protection in modern hardware such as computers and cell phones. Furthermore, these diodes can be used in circuits to create stabilized references for logic comparators.

Working principle

Under reverse or “Zener” biasing, the JANTX1N4485US zener diode acts as a controllable resistance. When the reverse voltage across the diode reaches the breakdown voltage (Vz), a large surge of reverse current (Iz) flows through it. As the voltage across the diode changes, the current through the diode also changes to maintain a constant voltage. This principle is what allows these diodes to be used as voltage stabilizers in many electronic circuits.

In order to calculate Iz and Vz, the Forward Voltage Drop (Vf) and Reverse Breakdown Voltage (VZ) must be known. The JANTX1N4485US has an operating voltage ranging from 7.5V to 150V, with a forward voltage drop of approximately 0.46V and a reverse breakdown voltage of approximately 7.5V. Additionally, the JANTX1N4485US has a maximum power dissipation of 500mW and a maximum operating temperature of 175°C.

Summary

The JANTX1N4485US zener diode is a single zener diode that provides a range of applications and working principles. When used with reverse biasing, it acts as a controllable resistance, and is often used as a power filter or voltage stabilizer in electronic circuits. The JANTX1N4485US has an operating voltage ranging from 7.5V to 150V, with a forward voltage drop of approximately 0.46V, a reverse breakdown voltage of approximately 7.5V, a maximum power dissipation of 500mW and a maximum operating temperature of 175°C.

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