Series:	Automotive, AEC-Q101, BZD27C
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	51V
Tolerance:	--
Power - Max:	800mW
Impedance (Max) (Zzt):	60 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 39V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-219AB
Supplier Device Package:	DO-219AB (SMF)

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Diodes - Zener - Single - BZD27C51P-E3-18 Application Field and Working Principle

The BZD27C51P-E3-18 is a single zener diode produced by Diodes Inc. It is widely used in various industries and applications. This article provides an overview of the BZD27C51P-E3-18’s application field and working principle.

Application Field

The BZD27C51P-E3-18 is mainly used in the following applications:

• Aerospace and defense
• Consumer electronics
• Industrial
• Lighting
• Medical
• Networking
• Power Management
• Telecommunications

In aerospace and defense, this component is mainly used as surge protection. It helps protect sensitive electronic components from overvoltage or high-voltage surges. In consumer electronics, it is used to protect internal components from overvoltage. For example, it can be used to safeguard laptop batteries from sudden power spikes.In industrial applications, it is mainly used to protect equipment when it is powered on or off. It helps maintain the safety of electrically powered equipment, preventing it from getting damaged due to improper operating conditions.In lighting, it is mainly used to avoid flickering when using LED lighting systems. It helps regulate the voltage to ensure that the LED lights remain steady.In medical devices, it is mainly used to protect electrical components from static charges and voltage spikes.In networking devices, such as routers and switches, it helps protect the components from voltage spikes, while providing stability to the system.In the field of power management, it is mainly used to prevent overcurrent and undercurrent conditions. It helps regulate the power supply and maintain it within a certain safe range.In telecommunications, it is mainly used to safeguard electronic components from voltage fluctuations.

Working Principle

The BZD27C51P-E3-18 is a zener diode, which is basically a special type of diode that maintains a constant voltage level. When the voltage on one side of the diode exceeds the zener voltage, the diode starts conducting electricity in the reverse direction. This helps prevent the voltage from rising further, which safeguards the electronic components from getting damaged due to overvoltage.The reverse breakdown voltage of the BZD27C51P-E3-18 is 18V. This means that the diode will start conducting current when the voltage on one side of the diode rises above 18V.When the voltage on one side of the diode is greater than the zener voltage, the current in the diode will be limited by the zener impedance. This helps ensure that the voltage is maintained at a constant level.The BZD27C51P-E3-18 is also equipped with a semiconductor junction, which helps protect the components from static electricity. This helps prevent the components from getting damaged due to static discharges.

Conclusion

The BZD27C51P-E3-18 is a single zener diode produced by Diodes Inc. It is widely used in numerous applications, such as aerospace and defense, consumer electronics, industry, lighting, medical, networking, power management, and telecommunications. Its working principle is based on the fact that it maintains a constant voltage level by conducting electricity in the reverse direction when the voltage on one side of the diode exceeds the zener voltage. It is also equipped with a semiconductor junction, which helps protect the device from static electricity.

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