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Diodes - Rectifiers - Arrays

The MBRT40080 is a general purpose rectifier diode array, which is superior to traditional unified elements due to their inversely stacked die structure. The device is manufactured with an innovative structure in which all the elements are housed in the same encapsulation, allowing for improved ease of handling, saving costs and time, as well as increasing thermal performance. The MBRT40080 offers excellent reverse surge capability, low forward voltage drop and fast switching speed.

Application Fields

The MBRT40080 is well suited for use in high power, high frequency switching applications where reliability and cost are major considerations. Some of the applications where MBRT40080 can be used include:

• High power switching converters
• High-power applications such as televisions, monitors and power supplies
• High-frequency electronic ballast circuits
• Inverters and converters
• Power factor controllers
• Photoflash units

Working Principle

The MBRT40080 uses an innovative structure to achieve superior performance compared to traditional unified elements. The device is composed of two diodes inversely stacked in the same encapsulation. These are connected together in series, and when connected to an AC power source, the two diodes are used to conduct current in either direction, depending on the polarity of the AC power applied. These miniature rectifier diodes provide very low forward voltage drop, excellent reverse surge capability and fast switching speed.

The typical forward current of the MBRT40080 is 4A and the maximum forward voltage is 400V. The reverse voltage rating of the device is 800V, with the maximum surge current rating being 40A. The maximum power dissipation is 2.5W.

The device is also designed for high EMI/RFI immunity. The MBRT40080 is available in a TO-220 package, which is both compact and robust.

Conclusion

The MBRT40080 is a versatile, cost effective, and robust rectifier diode array which is ideal for use in high-power, high-frequency switching applications. Its inversely stacked die structure allows for excellent reverse surge capability and fast switching speed, while the EMI/RFI immunity guarantees reliable operation in demanding environments.

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