MMSZ4716-E3-08 Discrete Semiconductor Products

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Diodes - Zener - Single: MMSZ4716-E3-08 application field and working principle

MMSZ4716-E3-08, which is from the family of Zener single diodes, is a type of semiconductor device which is widely used in different applications. It is the abbreviation of Micro Commercial Components (MCC) SMD (Surface Mount Device), which is a discontinued general-purpose signal diode, designed for a wide range of applications in commercial and precision electronic equipment. This diode has a typical Zener voltage range of 3.3 to 77 volts, with a break-down voltage range of 3.3 to 77 volts. The maximum repetitive peak reverse voltage is 75 volts, while the junction temperature range is -55°C to 175°C.

MMSZ4716-E3-08 offers a low-cost alternative for static voltage regulation and low noise operation. With the maximum power dissipation of 250 mW and a maximum forward continuous current of 5 mA, these diodes are suitable for use in small and medium size circuits. The junction capacitance is 5.3pF at zero bias, 5.4pF at 1 kHz, and 3.7pF at 5 kHz.

MMSZ4716-E3-08 is an ideal device for power-supply and clipping applications. It is also employed in voltage clamping circuits and over-voltage protection. The diodes give consistent performance in non-impeded operational conditions and provide a reliable static voltage regulation. Moreover, these diodes are suitable for equipment designed to comply with safety regulations.

Working principle of MMSZ4716-E3-08

MMSZ4716-E3-08 utilizes a PN junction diode, formed by two materials which are designed to effectively manage potentially damaging electricity that passes through a circuit. When the voltage across a PN junction diode increases to a certain limit, the breakdown occurs. This point is known as the Zener voltage, or the breakdown voltage. When the voltage increases beyond this point, the current quickly increases, leading to destruction of the PN junction diode.

In contrast, the MMSZ4716-E3-08 possesses the reverse breakdown characteristics which make them suitable for use in voltage regulation and over-voltage protection circuits. Zener diodes offer a constant voltage across varied currents for specified intervals, and this effect is also known as zener regulation. In the MMSZ4716-E3-08 diode, the voltage is generated by creating a Zener junction with its corresponding PN junction.

At the Zener junction, the depletion region has a much lower width than that of a normal PN junction. When the voltage across the diode increases, the valance bands of the junction overlap, and the electrons from the conduction band of the n-type material flow to the valance band of the p-type material. As a result, high-frequency carriers are formed in the junction, which means that the diode does not require any external power source to generate a constant voltage.

Conclusion

The MMSZ4716-E3-08 is a useful device for controlling and regulating the power in various applications. It is highly reliable and suitable for use in small and medium size circuits. The MMSZ4716-E3-08 utilizes the Zener voltage and its associated PN junction to provide a constant voltage output across varying current levels, allowing it to be employed in various voltage regulation and over-voltage protection circuits.

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