JANTXV1N4620-1

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Diodes - Zener - Single

JANTXV1N4620-1 is a Zener diode with trimmable breakdown voltage and 15.0 V nominal reverse voltage which is specifically designed for military and avionics applications. It is a type of two-terminal semiconductor junction device that is usually used in reverse direction and allows current across it in only one direction.The purpose of Zener diode is to provide a specific voltage reference level, typically with low noise, low temperature coefficient, low leakage current and low reverse saturation current.

Application Field

The JANTXV1N4620-1 diode has many varied uses in electronic systems including the regulation of overvoltage, act as a voltage reference, provide voltage stabilization and dynamic voltage suppression. It is commonly used in clamping circuits, voltage regulation, voltage reference sources and reverse protection. The Zener diode is optimized for low leakage currents, superior thermal stability and superior dynamic impedance capability.

JANTXV1N4620-1 is widely used in military and avionics applications because of its low reverse saturation current, low operating temperature, low regulatory noise and temperature stability. Its superior temperature stability throughout -65°C to +175°C makes it an ideal choice for these applications. It is also used in circuit protection and overvoltage applications that require a reliable, low-power reference with low regulation noise.

Working Principle

The JANTXV1N4620-1 Zener diode operates in the reverse-biased region and allows only a very small current to flow through it when the applied voltage to the diode is less than the breakdown voltage. This is called the cut-in voltage or threshold voltage. When the applied voltage exceeds the breakdown voltage of the diode, the diode will conduct in the reverse direction and become forward-biased. This is known as Zener Breakdown.

The Zener voltage (Vz) is the voltage where Zener breakdown occurs - this is the reverse voltage of the diode at which the reverse leakage current increases suddenly due to the breakdown of the depletion region. The JANTXV1N4620-1 typically has a breakdown voltage between 10 and 16 volts (14 V). Once breakdown occurs a sudden surge of current flows into the diode, which can cause it to be destroyed. Therefore, the diode should be placed in a voltage-regulating circuit with current-limiting components such as resistors to protect it from overcurrent.

Once the Zener breakdown occurs, the diode acts like a voltage-controlled resistor. The diode will maintain a constant voltage (the Zener voltage) across it, regardless of changes in current and reverse voltage. This property of the Zener diode is useful for creating a voltage reference source for circuits that require a stable reference voltage.

Conclusion

The JANTXV1N4620-1 Zener diode is a device used to regulate over voltage, act as a voltage reference and provide voltage stabilization and dynamic voltage suppression. It is designed specifically for military and avionics applications, with low reverse saturation current, low operating temperature, low regulatory noise and temperature stability. It is also used in circuit protection and overvoltage applications that require a reliable, low power reference with low regulation noise. The Zener diode operates in the reverse-biased region, allowing current to flow only when the applied voltage exceeds the breakdown voltage. Once breakdown occurs a sudden surge of current flows into the diode, which is why the diode should be placed in a circuit with current-limiting components, such as resistors, to protect it from overcurrent.

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