PZU22B,115

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±5%
Power - Max:	310mW
Impedance (Max) (Zzt):	25 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 17V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 100mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-90, SOD-323F
Supplier Device Package:	SOD-323F
Base Part Number:	PZU22

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<div class="content"><h3>Introduction</h3><p>The PZU2.2B,115 Zener diode is a single diode device commonly used for its ability as a voltage regulator and its noise suppression capabilities. It is a specifically engineered junction diode which ensures a degree of reverse voltage when connected to certain components. It has a remarkably accurate regulating voltage for such a small device, able to accept values of 2.2 volts in both forward and reverse current up to a maximum 1 kilowatt of power. </p> <h3>Applications</h3><p>The PZU2.2B,115 Zener diode is primarily used as a voltage regulator, designed to maintain the output voltage of a power supply or circuit at a specific level, thus allowing stable power supply to all components connected to it and preventing information or components getting damaged due to unexpected voltage fluctuations. It is also useful for its noise suppression properties, allowing it to filter out noise generated by applications such as switching power supplies and microprocessors. The device is usually used in conjunction with other components such as complementary transistors and thyristors in power semiconductor circuits and rectifier modules.</p> <h3>Working Principle</h3><p>When reverse voltage is applied in a general junction diode, current does not flow until the applied voltage reaches a certain point, known as the breakdown voltage. This breakdown voltage is always greater than the opposite polarity forward voltage. When reversed biased operation is applied in the PZU2.2B,115, a much smaller difference between the breakdown and forward voltage is observed, making it ideal as a voltage regulator. The downward voltage regulation results in almost orthogonal characteristic from the usual forward and reverse bias curves of a normal diode. </p> <h3>Design Considerations</h3><p>Due to its functions, the PZU2.2B,115 must be carefully designed to ensure that there is no extra stress or power dissipation beyond the stated maximum ratings. This means that the component must be placed in an environment where it will not be susceptible to extreme temperatures, heat or moisture. Furthermore, the component must be placed such that the parasitic capacitance between the pins and the mounting chassis is negligible. When designing with PZU2.2B,115, consideration must also be taken to ensure that the component is connected in the correct direction and that its maximum power dissipation ratings are not exceeded.</p> <h3>Conclusion</h3><p>The PZU2.2B,115 Zener diode is an incredibly useful tool that can be utilised to regulate and filter signals in a variety of applications. Particular consideration must be taken when designing circuits with Zener diodes, but with its accurate downwards voltage regulation over a wide temperature range, the PZU2.2B,115 is one of the most reliable and efficient components on the market.</p> </div>

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