JAN1N3318B

Series:	Military, MIL-PRF-19500/358
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	19V
Tolerance:	±5%
Power - Max:	50W
Impedance (Max) (Zzt):	2.2 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 13.7V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 10A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Stud Mount
Package / Case:	DO-203AB, DO-5, Stud
Supplier Device Package:	DO-5

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Introduction:

The JAN1N3318B diode is one of the most popular Zener diodes in the market today. It is designed to offer ultra-high stability and reliability, making it ideal for a wide range of applications. The JAN1N3318B provides both forward voltage protection and reverse voltage protection, making it suitable for a variety of power supplies, modules and other electrical systems. A Zener diode conducts current in both directions (forward and reverse) and exhibits a predictable breakdown voltage characteristic. This stable behavior has made the JAN1N3318B a popular solution for protecting components from electrical damage or for providing the needed power supply voltage.

Application Field:

The JAN1N3318B is most commonly used in systems that require both forward and reverse electrical protection. It is suitable for applications such as overvoltage protection, reverse voltage protection, and voltage regulation. These applications include power supplies, circuit module protection, overvoltage protection, and voltage regulation in general.The JAN1N3318B can also be used in automotive systems, providing the needed protection to a vehicle’s alternator, fuel pump, and other components. It is also suitable for controlling the power supply for electronic circuit modules, offering reliable and efficient protection for sensitive electronic components.

Working Principle:

The working principle behind the JAN1N3318B is simple but effective. In a nutshell, it is designed to conduct current in both directions and to only allow an appropriate amount of current to pass through, while maintaining the required breakdown voltage. In forward bias, the diode will conduct current in the forward direction and will limit the current flow to a safe level. In reverse bias, the diode will only allow the necessary amount of current to pass through, while maintaining the specified breakdown voltage.The JAN1N3318B works by connecting the anode to the positive voltage source and the cathode to the negative voltage source. When the voltage across the diode exceeds the breakdown voltage specified by the manufacturer, the diode will begin to conduct current. As current flows in the reverse direction, it will be limited to a safe level, protecting the component from electrical damage or from exceeding the voltage necessary for safe operation.

Conclusion:

The JAN1N3318B is a popular and reliable Zener diode that provides both forward and reverse voltage protection. It is most commonly used in automotive systems, power supplies and circuit module protection, offering an effective and efficient solution for protecting sensitive components. The diode will conduct current in both directions and maintain the specified breakdown voltage, preventing electrical damage to the component or the passing of too much current. Ultimately, this makes the JAN1N3318B a popular choice for a wide range of applications.

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