PZU5.1B3A,115

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	5.1V
Tolerance:	±2%
Power - Max:	320mW
Impedance (Max) (Zzt):	60 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 1.5V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 100mA
Operating Temperature:	150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	PZU5V1

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PZU5.1B3A is a single Zener diodes. It is dual in-line packages with axial lead and the package size is 4.2 x 9.7 mm. This device is mainly used for voltage stabilization, voltage regulation, peak-pulse clamping circuit applications, and other similar applications.The PZU5.1B3A series of Zener diodes has a maximum reverse voltage of 5.1V and a maximum power dissipation of 500mW. It is manufactured with a silicon epitaxial planar structure and has a 1N4006 diode rectifier in the same package. The junction temperature of the device is Tj = -65 to +150 degrees Celsius.The PZU5.1B3A Zener diodes has a maximum continuous current of 10mA, a forward voltage of 1.2V @ 10mA, and a reverse voltage of 5.1V. It also has a high breakdown voltage (BV) of 6V, a minimum reverse current of 0.7mA, and a maximum Zener knee voltage of 5.1V.The working principle of a Zener diode is based on the fact that when the reverse bias is applied to the diode, the electric field will pull the electrons away from the valence band of the semiconductor material, causing the depletion region to widen, resulting in a decrease of the forward voltage drop.When the reverse voltage reaches a certain limit, the electric field will increase enough to overcome the total energy band gap of the semiconductor material, which results in the generation of electron-hole pairs in the junction. As the electric field increases, these electron-hole pairs will drift toward the electric field, resulting in the formation of a high-concentration region near the junction. This region is referred to as the Zener region.In the PZU5.1B3A case, the 5.1V breakdown voltage defines the maximum reverse bias voltage that be applied to the diode before it starts conducting. After the diode starts to conduct, it will clamp the applied voltage to a certain level below the breakdown voltage, provide an efficient means of regulating the applied voltage.This device is mainly used for voltage stabilization, voltage regulation, peak-pulse clamping circuit applications, and other similar applications. It can be used to protect against high voltage spikes, or to reduce transient voltage fluctuations in a power supply. The device can also be used as a replacement for a standard diode rectifier in applications where a higher voltage stability is needed.The PZU5.1B3A is also used in AC adapter circuits, DC power converter circuits, reference voltage circuits, protection circuits, and overvoltage protector circuits. These circuits use the Zener diode to regulate the output voltage of the power supply. The Zener diode can also be used in circuits that require an adjustable current limit.In conclusion, the PZU5.1B3A is an effective and reliable Zener diode for applications that require a stable voltage source with a high breakdown voltage. It is well suited for a wide range of electronic applications, from AC adapter circuits to overvoltage protector circuits. The diode is also well-suited for use as a protection element in DC power converter circuits and reference voltage circuits to ensure a reliable and safe operation.

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