NZX7V5D,133

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

A diode is a two-terminal electrical device that conducts current primarily in one direction (asymmetric conductance). In today\'s market, a variety of diodes are produced and each have their own distinct characteristics, making them suitable for certain applications. One such diode, the NZX7V5D,133, belongs to the family of Zener diodes. Zener diodes are single-terminal devices commonly used for voltage regulation, clamping, signal rectification and signal limiting. NZX7V5D,133 is an especially popular diode due to its wide variety of application fields, robust design and simplicity.

Design and Features

The NZX7V5D,133 is a zinc oxide based avalanche diode with a power dissipation rating of 1.3W. Peak reverse power dissipation is also recommended not to exceed 1.3W. Maximum reverse voltage is 7 Volts (VRM), and the maximum forward voltage is 1.7V. The model is equipped with an epitaxial silicon cathode for improved reverse stand-off and high voltage breakdown. The operating junction temperature range is -65℃ to +150℃ and the storage temperature range is -65℃ to +175℃. It is suitable for high temperature soldering of up to 260℃ for 10 seconds.

The diode has a low thermal resistance of 0.11℃/W and is designed to have a low capacitance of 8pF in the forward voltage range. Maximum reverse current is 30mA at a temperature of 25℃ and a fixed voltage of 7V. The Zener impedance is 4 ohms or better, depending on strain rate.

In terms of packaging, the NZX7V5D,133 is available in SOT-223 (Small Outline Transistor–223) packages with up to four leads. The standard packaging option is an 8mm x 8mm body size.

Applications

Due to its small size, robust design and low capacitance, the NZX7V5D,133 is a versatile diode with several application fields. It can be used in applications requiring a low reverse leakage such as:

• DC-DC converters;
• Motor drivers;
• DC to AC inverters;
• DC motor control;
• Consumer electronics; and
• Automatic control systems.

It is also suitable for applications involving voltage clamping, surge protection and voltage regulation.

Working Principle

A Zener diode is a specialized PN-junction diode typically used in the reverse bias mode. When used in this manner, the diode conducts a certain amount of current in the reverse direction. This phenomenon is known as reverse breakdown. The reverse breakdown voltage, also known as a Zener voltage, is specific to the device and is not affected by the reverse current applied. This makes Zener diodes an ideal choice for voltage regulation. The NZX7V5D,133 has a maximum Zener voltage of 7 Volt.

When the anode potential is increased, the diode continues to operate in the reverse bias state until the breakdown voltage is reached. When this occurs, the diode starts operating in the forward bias state. Since the applied voltage is greater than the Zener voltage, the excess voltage is dropped across the diode, creating a constant (regulated) voltage across the output terminals.

The Zener breakdown voltage, referred to as the Zener voltage, is determined by the built-in PN-junction\'s width and the doping levels of the diode\'s terminals. The Zener Voltage of the NZX7V5D,133 is 7 Volts.

An important aspect of their operation is the relationship between the collector current and the output voltage. As the base current increases, the voltage across the diode drops. The current is regulated by adjusting the base current. This can be done by adding a resistor or an external circuitry to the output terminals.

Conclusion

The NZX7V5D,133 diode is single-terminal device, which makes it a popular choice for voltage regulation, voltage clamping and surge protection. It is suitable for applications such as DC-DC converters, motor drivers, DC to AC inverters, consumer electronics and automatic control systems. Its reverse stand-off, Zener impedance and low thermal resistance make it an ideal choice for high power applications. Furthermore, due to its low capacitance, the diode can be used in high frequency applications.

The specific data is subject to PDF, and the above content is for reference