MMBD4448W-7 Discrete Semiconductor Products

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The MMBD4448W-7 is a single, rectifying diode. It is a device that allows for electricity to flow in one direction, but not in the other direction, and is generally used for rectifying alternating current (AC) to direct current (DC), and other specific applications. The device\'s features and characteristics, and its working principles, are discussed in detail in this article.

Features & Characteristics

The MMBD4448W-7 is a low profile, 5.4V Zener diode, with an on-resistance of 0.62Ohms. It has a maximum on current rating of 2A and a maximum breakdown voltage of 5.4V. The device also has a fast switching speed of up to 2A. The MMBD4448W-7 is housed in a SOT-23 package and is available in both lead-free tin/lead (Sn/Pb) plating and in green, Pb-free RoHS compliant options. It is suitable for both through-hole and surface mount applications.

Applications

Due to its fast switching speed and low profile design, the MMBD4448W-7 is suitable for use in multiple applications, including; rectifying AC to DC voltage, general protection applications, automotive and consumer electronics, switching lighting applications and consumer communications.

Working Principle

The MMBD4448W-7 works by using an electric field to allow current to pass through it in one direction and by creating a barrier to block current from passing through it in the opposite direction. This is achieved by a semiconductor material layer, located between the two electrodes. When electricity is applied to the electrodes, the electrons can move through the semiconductor material and create an electric field within it. This electric field creates a barrier for the current that is attempting to pass through in the opposite direction.

The device\'s breakdown voltage is related to the amount of current that it can pass through, its voltage standoff and its junction temperature. The breakdown voltage is determined by the design of the semiconductor material and the applied voltage. The MMBD4448W-7\'s breakdown voltage is 5.4V, meaning that it can withstand a maximum voltage of 5.4V across its terminals.

Conclusion

In conclusion, the MMBD4448W-7 is a single, rectifying diode that is used for rectifying AC to DC voltage and for various other applications. It has a low profile design, a maximum on current rating of 2A and a maximum breakdown voltage of 5.4V. It is well suited for use in many applications, including; rectifying AC to DC voltage, general protection applications, automotive and consumer electronics, switching lighting applications and consumer communications.

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