BZD27C20PHRQG

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±6%
Power - Max:	1W
Impedance (Max) (Zzt):	15 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 15V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-219AB
Supplier Device Package:	Sub SMA

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Introduction

The BZD27C20PHRQG is a single zener diode from NXP Semiconductors. It is a 20 V zener diode specifically designed for use in various voltage regulation and signal isolation applications. This diode is designed to provide a constant voltage drop over a wide range of currents, providing superior performance in many environments. This article will discuss the application field of the BZD27C20PHRQG and its working principle.

Application Field

The BZD27C20PHRQG is used in various voltage regulation and signal isolation applications. The most common applications are in power supplies, data acquisition systems, signal conditioning, and automotive applications.In power supplies, the diode is used as a voltage regulator, maintaining a set voltage drop between the input and output of the power supply. This allows the power supply to remain stable and reliable, even when subject to wide voltage variations.In data acquisition systems, the diode is used to limit signal noise and provide isolation between components. This helps improve signal integrity and reduce errors in the data being gathered.In signal conditioning, the diode is used to attenuate or amplify signals. It is often used in radio receivers and cell phone transmitters as well as other electronic applications.In automotive applications, the diode is used to limit current and provide signal isolation. In some vehicles, the diode is used to regulate the current in the cabin and ensure a safe, comfortable environment.

Working Principle

The BZD27C20PHRQG is a voltage-controlled device. It operates like a resistor, but instead of changing resistance, it changes its breakdown voltage. When reverse-biased, the diode acts like an open circuit. When the voltage reaches the specified breakdown voltage (VZ max in the datasheet), the diode conducts. At this point, current starts to flow and the voltage drop reaches a constant value. This constant voltage is referred to as the zener voltage and is defined in the datasheet. The main advantage of the zener diode is that the zener voltage is constant and independent of the current through the diode. This allows the zener diode to be used in voltage regulation applications, as it is able to maintain a constant voltage drop across the diode.

Conclusion

The BZD27C20PHRQG is a single zener diode from NXP Semiconductors. It is used in various voltage regulation and signal isolation applications, such as power supplies, data acquisition systems, signal conditioning, and automotive applications. The diode works on the principle of voltage regulation, where it maintains a constant voltage drop over a wide range of currents. This makes the diode ideal for environments that experience wide voltage variations.

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