BZX79C12-T50A

Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35
Base Part Number:	BZX79C12
Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	12V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	25 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 8V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 100mA
Operating Temperature:	-65°C ~ 200°C

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Introduction

The BZX79C12-T50A is a surface mount zener diode designed and manufactured by NXP Semiconductors. Specifically, it is a single diode designed for use in medium power, high voltage applications. This diode is capable of providing excellent reliability and performance in a wide range of applications.

Application Field

The BZX79C12-T50A is most commonly used in power supply and energy management applications. Its surface mount design makes it very suitable for use in high density printed circuit boards. The diode is also commonly used in voltage stabilization and voltage reference circuits. The BZX79C12-T50A can be used in a variety of electronic circuits such as switched mode power supplies (SMPS), switching regulators and power factor correction circuits. The diode is also suitable for use in DC-DC converters, high voltage DC power supplies, and in many other applications where a robust and reliable zener diode is required.

Working Principle

When the anode of the BZX79C12-T50A is connected to a positive voltage source and the cathode is connected to a negative voltage source, the diode will conduct current in the reverse direction only when the forward voltage applied to the diode exceeds its zener breakdown voltage. At this point, the diode will enter a state in which it conducts current in both directions. The diode will remain in this state until the voltage applied to the diode drops back below its zener breakdown voltage. During this time, the voltage across the diode will be limited to the zener breakdown voltage and will not exceed it. This allows the diode to be used for voltage regulation and voltage reference applications.

Conclusion

The BZX79C12-T50A from NXP Semiconductors is a single zener diode suitable for use in medium power, high voltage applications. Its surface mount design makes it ideal for use in dense printed circuit boards. The diode can be used in voltage stabilization and voltage reference circuits, DC-DC converters, high voltage DC power supplies, switched mode power supplies and many other applications that require a reliable zener diode. The diode operates by conducting current in the reverse direction when the forward voltage applied to it exceeds its zener breakdown voltage. Once in this state, the voltage across the diode will be limited to the zener breakdown voltage.

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