CMSZ5258B TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	36V
Tolerance:	±5%
Power - Max:	275mW
Impedance (Max) (Zzt):	70 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 27V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SOT-323

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CMSZ5258B TR: Application Fields and Working Principles

CMSZ5258B TR is a single zener diode produced by electronics component manufacturer Cheese Brick. It is used for its reverse breakdown voltage stabilization ability, protecting other components in a circuit from overvoltage conditions. These diodes are very common in electronics applications and are used in a variety of different industries.

Applications

CMSZ5258B TR is most commonly used in the power supplies, LEDs, and other circuits that require reverse breakdown voltage stabilization. It is a good choice in these applications because of its ability to hold a voltage and maintain a reasonably low impedance even when the current is varying. It also provides a high level of protection against a number of different kinds of overvoltage conditions.For example, the CMSZ5258B TR can be used to protect a VHF receiver from transients, or to protect a pulse width modulated (PWM) inverter from current overloads. In addition, it can be used in the protection of opto-isolators and other optical components, or for the protection of circuits using contactors and relays.

Design Considerations

When selecting a CMSZ5258B TR diode for a specific application, several important design considerations must be taken into account. The most important factor is that the device must be specified with a voltage rating that is at least 10% above the maximum possible input voltage. This ensures that the zener diode will not operate under linear conditions and become substantially damaged.It is also important to make sure that the reverse current of the device is low enough to limit the power dissipation. This can be tricky, however, as certain applications may require higher and lower currents. In this case, the diode must be selected with a power rating that is suitable for the application.Finally, the amount of power dissipation must also be taken into account. The CMSZ5258B TR features an expensive construction that allows it to be rated for up to 500 mW of internal power dissipation. However, this must be taken into consideration as excessive power dissipation can cause the device to overheat and be permanently damaged.

Working Principles

The CMSZ5258B TR is based on a PN junction that consists of two materials N-type and P-type semiconductor materials. Under normal conditions, the junction is below the Zener breakdown voltage. When the junction voltage rises above the Zener breakdown voltage, the diode will conduct current in the reverse direction and the voltage will remain at the Zener voltage.The amount of current that can flow through the diode, known as the Zener current, is proportional to the voltage and is temperature dependent. This property allows the CMSZ5258B TR to be used as a voltage stabilizer in that it will remain at a constant voltage regardless of the variations in current and temperature.This ability to remain at a stable voltage and limit the current makes the CMSZ5258B TR an ideal device for many applications, from power supplies to circuits with contactors and relays. The device\'s ability to protect against overvoltage conditions makes it a popular choice for many different industries.

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