PZU18B1A,115

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	±2%
Power - Max:	320mW
Impedance (Max) (Zzt):	20 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 13V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 100mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	PZU18

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PZU18B1A,115 application field and working principle

PZU18B1A,115 is a Zener diode, which is a type of single diode. It is used for voltage regulation and also functions as a voltage reference, allowing direct current to flow in one direction but blocking any reverse current flow. It is able to maintain a stable voltage across its terminals, even when the current changes.PZU18B1A,115 has many important applications in circuits. It can be used for controlling supply voltage, for example by stopping the applied AC or DC voltage from excessively exceeding a set value. It can also be used as a voltage reference in analog-to-digital converters, or to isolate timing or logic circuits from transients. Finally, it can be used in over-voltage protection, EMI filtering and noise suppression, RS-232 power supplies and 12V to 24V DC-DC conversion.The working principle of the PZU18B1A,115 is relatively simple. It consists of a semiconductor junction in which electrons are injected when there is forward current, and a depletion zone is formed near the junction. This depletion region makes it harder for electrons to cross from one side of the diode to the other, and when a reverse current is applied, the electrons are not able to cross the depletion region and thus no current flows. When the applied voltage is less than the breakdown voltage, the depletion region increases and more current can flow. Once the applied voltage reaches the breakdown voltage, the electrons are able to cross the depletion region and a large amount of current can flow.In summary, PZU18B1A,115 is a single diode with many important applications in circuit design, such as voltage regulation, voltage reference, over-voltage protection and more. It works by forming a depletion layer that makes it harder for electrons to cross from one side of the diode to the other, and when a reverse current is applied, the electrons are not able to cross the depletion region and thus no current flows. When the applied voltage is less than the breakdown voltage, the depletion region increases and more current can flow.

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