PZM6.2NB,115

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Diodes - Zener - Single: PZM6.2NB,115 Application Field and Working Principle

A diodes – Zener – single (DZS) is a type of diode that is used to provide a regulated, stable voltage source. Zener diodes are one-way passage devices; they allow current to flow within one direction, but block or reduce current in the reverse direction. Diodes – Zener – single are often used to maintain a consistent voltage within a circuit and protect against adverse voltages. The PZM6.2NB,115 diode is a type of Zener diode that is commonly installed into devices, and this paper explores the application field and working principle of this part.

Application Field

The PZM6.2NB,115 is a low-voltage, 5 watt Zener diode, capable of working within a wide range of voltages compared to traditional Zener diodes, with an allowable voltage range of 5.6 volts to 109 volts. As such, the diode is most often used in circuits where relatively low voltages are present, such as communications circuits, consumer electronics, and automotive and industrial electronics. In addition, the diode is also frequently installed into consumer AC-DC and DC-DC circuit power supplies, such as computers and laptops for main power support, hence being able to operate within a wide range of temperatures.

Working Principle

The way a Zener diode works is quite simple; it is formed from a semiconductor diode, with a PN junction, or anode and cathode. In contrast to a normal diode, a Zener diode has an intentional ‘weak link’, so when voltage drops, electrons flowing across the junction create a stabilization that prevents further voltage drop. To achieve this, a Zener diode has a higher Zener breakdown voltage compared to that of a normal diode, with the PZM6.2NB,115 having a Zener breakdown of 115 volts.

Operation

When installed within a circuit, the PZM6.2NB,115 is meant to be the stabilizer within the circuit. The actual operation of the diode is quite simple; when the input voltage is lower than its Zener breakdown voltage (115V for the PZM6.2NB,115), the diode does not conduct, meaning that the output voltage is equal to the input voltage. Conversely, when the input voltage is higher than the Zener breakdown voltage, the diode begins to conduct in the Zener region, hence allowing a portion of the input voltage to be dropped across the diode. By doing this, the diode is able to maintain a stable voltage level within the circuit due to the ‘weak link’ mentioned above, preventing the output voltage from fluctuating.

Conclusion

The PZM6.2NB,115 is a popular DZS, owing to its relatively low Zener breakdown of only 115V. As such, it is often used in a variety of applications, from telecommunications to automotive and industrial electronics. Its relatively small size and high wattage makes it one of the most widely used Zener diodes available, and its simple working principle ensures that it is able to effectively maintain a steady output voltage.

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