SMBJ5949A/TR13

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	100V
Tolerance:	±10%
Power - Max:	2W
Impedance (Max) (Zzt):	250 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 76V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	SMBJ (DO-214AA)
Base Part Number:	SMBJ5949

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Introduction

The SMBJ5949A/TR13 is a single, unidirectional, general purpose Zener diode. Its maximum power dissipation rating is 500mW making it suitable for applications in circuits where high power dissipations are not needed. The SMBJ5949A/TR13 can be used in a wide range of applications, including protection circuits, motor and automotive applications, various industrial and consumer electronics, as well as signal conditioning and signal protection.

Application Field

The SMBJ5949A/TR13 can be used in a variety of applications and fields, including protection circuits, automotive applications, industrial applications, consumer electronics, and signal conditioning and protection. For protection circuits, the SMBJ5949A/TR13 is particularly suitable for over-current, over-voltage, and electro-static discharge (ESD) protection. In automotive applications, the SMBJ5949A/TR13 can be used for backlighting inverters, sensors, and motor control circuits. Industrial applications can include motor control, power line protection, and high-voltage isolation circuits. The SMBJ5949A/TR13 can also be used in consumer electronics such as televisions, stereo systems, and computers. Moreover, in signal conditioning and protection applications, the protection of digital logic gates and analog circuits, as well as, transient protection circuits can be implemented using the SMBJ5949A/TR13.

Working Principle

The SMBJ5949A/TR13 works by allowing current flow when the forward voltage is greater than the zener voltage. In other words, when the forward voltage is greater than the zener voltage, the diode acts as a simple conducting link. This allows the current to pass from the positive side of the circuit to the negative side. Similarly, when the forward voltage is lower than the zener voltage, the diode acts as a reverse-biased diode, and no current will flow. This bi-directional behavior enables the SMBJ5949A/TR13 to be used in a variety of applications.In addition to its bi-directional property, the SMBJ5949A/TR13 also has a built-in avalanche property that effectively limits the voltage on the diode by protecting it from excessively high voltages. This occurs due to the built-in Zener breakdown that occurs at the Zener voltage, causing a current surge to be generated. The avalanche property is useful in cases where higher voltages need to be prevented or limited, such as over-voltage, over-current and ESD protection.Finally, the SMBJ5949A/TR13 also has a capacity of withstanding high temperature and humidity conditions, making it suitable for use in a wide range of application environments.

Conclusion

The SMBJ5949A/TR13 is a Zener diode that is suitable for a range of applications, including protection circuits, motor and automotive applications, various industrial and consumer electronics, as well as, signal conditioning and signal protection. This diode works by allowing current flow when the forward voltage is greater than the zener voltage, and by limiting the voltage when the forward voltage is lower than the zener voltage. The SMBJ5949A/TR13 is also capable of withstanding high temperatures and humidity making it suitable for a range of applications.

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