MMBZ5228BS-7-F

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Diodes - Zener - Arrays cover a variety of semiconductor devices used to control current and voltage in an electronic circuit. MMBZ5228BS-7-F is one type of Zener array device and this article will discuss its application field and working principle.

MMBZ5228BS-7-F belongs to a family of Zener arrays which are widely used for applications requiring multiple Zener voltage references. It can be used in a range of applications from power supply or LCD backlighting control, to the protection of integrated circuits from electrical overstress (EOS).

MMBZ5228BS-7-F comprises of 8 individual diode/Zener diodes arranged in a series chain with each diode rated for a 7V zener voltage. Each diode also has a 200mA current rating, making it suitable for applications requiring high levels of reliability. The device has a small form factor, making it suitable for use in a variety of space-restricted applications such as mobile phones, notebook computers, digital cameras, and so forth.

The device works on the principle of reverse biasing. When the anode is reverse biased, a current flows through the device, as a result of which each Zener diode limits the voltage at its anode terminal to a fixed value, which is equal to its Zener voltage. This fixed voltage acts as a reference in the circuit, allowing the system to maintain a stable voltage level.

In addition to its primary purpose, MMBZ5228BS-7-F can also be used to provide overvoltage protection. When the voltage across the device exceeds its zener voltage, the current flowing through the device increases and attracts a large amount of energy which is dissipated as heat. This suppresses any voltage spikes and provides overvoltage protection for the device as well as for the rest of the circuit.

The device has been designed to operate over an environment temperature range from -40°C to +85°C. It has a maximum resistance of 5Ω, a maximum power dissipation of 500mW, and a maximum reverse leakage current of 10uA. The device is packaged in a DO-214-AB package and can be easily mounted on a circuit board.

In conclusion, MMBZ5228BS-7-F is a Zener array device with a 7V zener voltage suitable for multiple applications. It provides reliable overvoltage protection and operates over an adequate temperature range. With its small form factor and efficient performance, MMBZ5228BS-7-F is an ideal solution for applications requiring stable, adjustable reference voltages.

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