MMSZ5230BS-7 Discrete Semiconductor Products

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MMSZ5230BS-7 Application Fields and Working Principle

The MMSZ5230BS-7 is part of the MMSZ series of Zener diodes manufactured by ON Semiconductor. It is a single Zener diode whose application varies from general-purpose to extremely precise and low-power applications.

Application Fields

The MMSZ5230BS-7 is a general-purpose Zener diode, suitable for use in power supply and regulator circuits. It is commonly used in voltage clamping and voltage regulation circuits, such as in low-voltage and low-power switching applications. It is also useful for over-voltage protection and surge suppression applications, as well as for sampling circuits.

Additionally, the MMSZ5230BS-7 is used in Zener voltage references, analog circuits, and transistor circuits. It is also very effective in voltage-controlled oscillator circuits, often used in audio filter circuits and in industrial control circuits.

Working Principle

A Zener diode is a type of diode that is designed to break down at a predetermined voltage value, while limiting current flow. The breakdown voltage of a Zener diode is usually temperature-insensitive and is often kept very consistent with a very tight tolerance band. The breakdown voltage value is determined by the thickness of the P-N junction, which is controlled by the doping and the applied voltage across the junction.

A Zener diode operates by allowing a small current through it in the forward direction, until it reaches the Zener breakdown voltage. Once this breakdown voltage is reached, the diode begins conducting in the opposite direction, and the voltage remains relatively constant after the breakdown voltage value is exceeded.

The MMSZ5230BS-7 is a single Zener diode that operates within a range of 2.4V to 39V, with a nominal breakdown voltage of 33V. It features a maximum power dissipation of 300mW and a forward voltage of 0.8V at a current of 10mA. Its typical operating temperature range is -65°C to 175°C. The MMSZ5230BS-7 also has a wide variation in Zener voltage tolerance, from -2V to +2V.

Conclusion

The MMSZ5230BS-7 is a single Zener diode with a wide range of applications in power supply and regulator circuits. It is extremely useful for Zener voltage references, over-voltage protection, surge suppression, voltage clamping, voltage regulation, and general-purpose low-power applications. Its breakdown voltage value is temperature-insensitive and tends to remain very consistent, with a very tight tolerance band.

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