JANTX1N4469

The JANTX1N4469 is a Zener diode, a type of diode specifically designed to produce an extremely precise voltage across its terminals. Unlike a standard diode, which limits current flow in one direction, a Zener diode conducts current in both directions when the voltage applied to either lead is greater than its rated breakdown voltage. As a result, a Zener diode can be used to achieve highly reliable, precise voltages in a range of different applications.

JANTX1N4469 - Overview

The JANTX1N4469 is a single Zener diode that is capable of providing a stable voltage of 4.7 volts in a wide range of conditions. It is packaged in an SOT-23 plastic surface-mount package and features a maximum power dissipation of 500 milliwatts, a maximum operating temperature of 150 degrees Celsius, and a reverse leakage current of 5 microamps. It has a maximum reverse-voltage breakdown of 5.6 volts and a capacitance between its leads of 3 picofarads.

JANTX1N4469 - Applications

The JANTX1N4469 is used in a variety of applications, including voltage regulation, over-voltage protection, over-temperature protection, and reverse-polarity protection. In voltage regulation applications, the Zener diode stabilizes the input voltage to ensure an accurate output. In over-voltage and over-temperature protection applications, the diode is used to stop current flow when predetermined voltage and temperature levels are exceeded. In reverse-polarity protection applications, the diode safely dissipates excess current.

JANTX1N4469 - Working Principle

The JANTX1N4469 Zener diode works by using a reverse breakdown voltage. The diode is made up of a P-type semiconductor and an N-type semiconductor that are joined to form a PN junction. When the Zener diode is connected to a power source, current begins to flow from the P-type to the N-type, as with a standard diode. However, as the voltage across the leads increases, the electric field across the junction begins to exceed the breakdown voltage, allowing the current to flow in the reverse direction.

Under these conditions, the diode starts to act as a voltage regulator, allowing current to flow from the source to the load only when the voltage across the diode’s leads is above the breakdown voltage. At lower voltages, the current remains off.

Conclusion

The JANTX1N4469 is a reliable, single Zener diode, capable of providing a stable voltage of 4.7 volts in a wide range of conditions. It is used in applications such as voltage regulation, over-voltage protection, over-temperature protection, and reverse-polarity protection. The diode works by using a reverse breakdown voltage, allowing current to flow in one direction only when the voltage across its leads is above the breakdown voltage. By taking advantage of the JANTX1N4469’s capabilities, engineers can produce reliable and precise voltage levels for their applications.