ACZRA4763-HF

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	91V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	250 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 69.2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)

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Aczra4763-Hf Application Field and Working Principle of Diodes - Zener - Single

The ACZRA4763-HF is a single-junction Zener diode designed for use in communications, instrumentation and high-precision power supplies. As a high-voltage device, the ACZRA4763-HF has a maximum operating voltage of 800V and a breakdown voltage of 48V.The ACZRA4763-HF is a very efficient device with a very low dynamic resistance of 1.8 ohms. The device also has a high temperature coefficient of 0.0001V/°C, which enables accurate voltage regulation over a wide temperature range.The ACZRA4763-HF is an axial-lead device with a maximum power rating of 200mW. The device is also available in a surface-mount package for increased ease of stacking and installation in tightly-packed boards.The ACZRA4763-HF is a unidirectional diode and requires a low driving voltage to maintain its breakdown voltage. When the reverse-bias voltage reaches the breakdown voltage, electrons in the avalanche multiplication region are accelerated to high energies by the electric field. These high-energy electrons then collide with lattice atoms in the junction, creating additional carriers that contribute to a large increase in the current through the device.Since the ACZRA4763-HF is a Zener diode, it can also be used as a voltage regulator. When it is operated in the reverse-bias region, the breakdown voltage of the ACZRA4763-HF will remain constant over a certain temperature range and the device will be able to supply the necessary current to the load.The ACZRA4763-HF can be used in a variety of applications such as power supply regulation, battery protection, overvoltage protection and pulse-width modulation control. It is also commonly used in high-precision circuits as it offers low dynamic resistance and high power dissipation.In summary, the ACZRA4763-HF is a single-junction Zener diode suitable for use in a variety of applications. The device has a high voltage rating, low dynamic resistance, high power dissipation and good temperature coefficient, making it ideal for high-precision circuits. The device can also be used as a voltage regulator as it maintains its breakdown voltage over a certain temperature range.

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