Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3V
Tolerance:	±5%
Power - Max:	400mW
Impedance (Max) (Zzt):	95 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	ALF2
Base Part Number:	BZX79C3V0

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Diodes - Zener - Single

Introduction to BZX79-C3V0,143

BZX79-C3V0,143 is a single Zener diode. It is a dual anode, three pin diode typically used in 12 volt power supplies and other general purpose applications. It has an operating voltage range of 5.8 to 154 volts, with a peak repetitive reverse voltage rating of 300 volts. The nominal zener breakdown voltage is 3.3 volts. The package housing is typically in the DO-213AA outline, the gold metallized variant of the DO-213AA.

Applications of BZX79-C3V0,143

BZX79-C3V0,143 can be used in 12 volt power supplies and other general purpose applications. It is used for voltage regulation and as a voltage reference in various voltage regulating units, letting it provide a consistent voltage output. Additionally, it is also used in rectifying applications, EMI filters and surge protectors, voltage limiting and current limiting applications, as well as ESD suppression.

Working Principle of BZX79-C3V0,143

BZX79-C3V0,143\'s working principle is based on the phenomenon of Zener breakdown. When a reverse bias is applied to a properly designed PN junction, the majority carriers are depleted from the junction and an avalanche breakdown is formed. A current carrying majority carrier is accelerated by a very high electric field and collides with electrons, creating another set of current carrying majority carriers. This causes a cascading effect and a large current starts flowing through the device. This current then provides a voltage drop across the diode when loaded, thus providing a bias voltage.BZX79-C3V0,143 also utilizes the idea of temperature compensation. This ensures that the zener voltage of the device is maintained within a certain range when the temperature of the environment changes. This is achieved by incorporating a conductive path in both the anode and cathode of the device. This conductive path is used to adjust the zener voltage by adjusting the current flowing through it which in turn compensates for any changes in the external environment temperature.

Conclusion

BZX79-C3V0,143 is a single Zener diode making it suitable for 12 volt power supplies and other general purpose applications. It utilizes the idea of Zener breakdown to create a reverse bias in the PN junction and provide a consistent voltage output. Additionally, it also has temperature compensation built into it which helps it maintain a stable zener voltage when exposed to varying temperatures.

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