FLZ33VA Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	30.5V
Tolerance:	±3%
Power - Max:	500mW
Impedance (Max) (Zzt):	55 Ohms
Current - Reverse Leakage @ Vr:	133nA @ 25V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package:	SOD-80
Base Part Number:	FLZ33

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The FLZ33VA is a single Zener Diode engineered to offer high reliability and excellent performance in various applications. It is also capable of withstanding unprecedented amounts of repetitive ESD shocks, making it ideal for use in both industrial and consumer digital systems. The FLZ33VA is a commonly employed component due in part to its low forward voltage and its high reverse energy capability. The FLZ33VA diode may also be used in maintaining the stability of AC and DC circuits by providing a highly regulated reverse current through the Zener junction. In addition to AC and DC circuit maintenance, the FLZ33VA can also be used in the regulation of DC bus voltage. Earlier types of power supply designs demanded the use of a transistor to perform this role, but with the advent of the FLZ33VA, the need for transistors has been eliminated.The FLZ33VA also has a variety of other applications due to its ability to accurately maintain a low forward voltage drop during periods of high current load. The most common use of the FLZ33VA is as an over-voltage protection device. By connecting the device across the conductor of the circuit, the FLZ3AVA can automatically detect an increase in voltage and act as a safety measure by clamping the voltage to the desired level. It can also be used in the construction of a low- voltage detector, allowing for the detection of over-voltage or under-voltage. The FLZ33VA also has the ability to protect electronic devices from transient events such as spikes or surges in voltage that may damage the system.In order to understand the principle of operation of a Zener diode, we must first recognize the dynamic interaction of electrons and holes in a junction diode. A typical diode consists of three (3) p-n regions, the first region is the anode (an) which contains n-type material, the second region is the p-n junction, and the third region is called the cathode (ct) which contains p-type material. Under normal conditions, electrons will cross from the n-type material to the p-type material and holes will move in the opposite direction. However, as the forward voltage nears the threshold voltage (Vf), the resistance between the p-n junction decreases due to what is known as the avalanche breakdown effect. At this point, a high electric current begins to flow across the junction. The Zener diode is a special type of diode which has particular characteristics in order to allow for the Zener effect. The Zener diode allows the controlled passage of electrons through the junction in both directions, while still maintaining the breakdown current (Izk). This allows the device to be used in a variety of applications such as over-voltage protection and stabilizing AC and DC circuits. The FLZ33VA is a uniquely designed single Zener diode which provides outstanding performance and reliability in a variety of applications. It is able to maintain a low forward voltage drop and withstand high amounts of ESD shocks making it suitable for both industrial and consumer digital systems. Its applications include over-voltage protection, low voltage detection, stabilizing AC and DC circuits, maintaining DC bus voltage, and protecting electronic devices from transient events. The device is capable of sustaining a high electric current and offers superior stability in comparison to earlier models of power supply designs. In conclusion, the FLZ33VA is an ideal option for applications which demand reliable and high performance. Its numerous uses and stability make it an increasingly popular component in a variety of electronic devices.

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