BZX84B11-E3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	11V
Tolerance:	±2%
Power - Max:	300mW
Impedance (Max) (Zzt):	20 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 8V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

The BZX84B11-E3-18 is a single zener diode, used in applications to regulate and protect against voltage spikes. They are a small semiconductor device made of an active junction between two electrodes on a semiconductor material, which allows current to flow in both directions.

Structure

The BZX84B11-E3-18 is a single zener diode, with two terminal pins: the anode and the cathode. The anode terminal is connected to the cathode of the semiconductor material and the cathode is connected to an external voltage source used to control the diode\'s operation.

Application

The BZX84B11-E3-18 is commonly used as a protective device due to its excellent stability and high level of protection against transient voltage spikes. It is designed for use with a range of microcontrollers, EEPROMs, and other ICs, and can also be used to regulate voltage in power supplies, and to provide protection against overvoltage and undervoltage conditions.

Working Principle

The BZX84B11-E3-18 works on the principle of breakdown voltage, which is the voltage at which the diode starts to conduct current. The breakdown voltage for the BZX84B11-E3-18 is 18V. When the voltage on the anode terminal exceeds the breakdown voltage, the diode starts to conduct current and serves as a regulator. This prevents any further rise in voltage beyond the breakdown voltage, providing effective protection from spikes. In addition, the BZX84B11-E3-18 has a reverse breakdown voltage that is 1.4V higher than the rated forward breakdown voltage, which means it can be used to protect against both undervoltage and overvoltage conditions.

Conclusion

The BZX84B11-E3-18 is a single zener diode commonly used in applications to regulate and protect against transient voltage spikes. It is designed for use with a range of microcontrollers, EEPROMs and other ICs, and can be used to protect against overvoltage and undervoltage conditions. The diode works on the principle of breakdown voltage, which is the voltage at which the diode starts to conduct current. The diode is specifically designed for this purpose, providing excellent stability and protection from randomly occurring spikes.

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