CMSZ5251B TR

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The CMSZ5251B TR is a simple zener diode that is commonly used in electronic circuits. It has a maximum power dissipation (in an ambient temperature at 25°C) of 500mW, and its operating temperature range is from -65°C to +175°C. This single diode is constructed on a 0.5mm pitch lead frame and is better suited for higher voltage applications.

The CMSZ5251B TR has a wide variety of applications, but primarily it is used in voltage regulation, voltage clamping, and voltage reference applications. It can be used in electronic circuits requiring a low-cost and reliable zener diode. Some applications that can benefit from the CMSZ5251B TR are transient voltage suppression (TVS) diodes, voltage regulators, and noise suppression.

CMSZ5251B TR Working Principle:

The CMSZ5251B TR works on the principle of reverse breakdown voltage. Unlike other diodes, the CMSZ5251B TR has two regions within its p-n junction: a depletion region and a space-charge region. When a reverse bias is applied to the diode, electrons and holes move away from the p-n junction and the depletion region expands. This results in a voltage drop across the p-n junction which is known as the Zener breakdown voltage.

When an electric field builds up that is greater than the Zener breakdown voltage of the CMSZ5251B TR, the electric field causes avalanche breakdown at the p-n junction and a large current flows through the diode. The current travels through the diode in a reverse direction and the voltage across the diode is kept at a constant value. This voltage is determined by the Zener breakdown voltage of the diode and is known as the Zener voltage. The Zener voltage of the CMSZ5251B TR is 5.1V.

In summary, the CMSZ5251B TR is a single diode with a Zener breakdown voltage of 5.1V. It is used in applications requiring voltage regulation, voltage clamping, and voltage reference such as transient voltage suppression (TVS) diodes, voltage regulators, and noise suppression. It is constructed on a 0.5mm pitch lead frame and has a maximum power dissipation of 500mW.

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