SDM02U30LP3-7B Discrete Semiconductor Products

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Diodes - Rectifiers - Single

The SDM02U30LP3-7B is a high voltage single rectifier diode. This diode features high surge current capabilities, low reverse current leakage and low reverse recovery. It is a suitable replacement for existing Schottky diodes in applications where the required voltage range of 30V to 70V, and the reverse leakage current is below 200μA at 75V. This diode is also UL certified and is E-24/UL approved.

Applications

The SDM02U30LP3-7B is used in a variety of applications, including:

• DC-DC converters
• Power switch mode power supplies
• Uninterruptible power supplies
• Motor drives
• Inverter and switching circuits

Working Principle

The working principle of the SDM02U30LP3-7B diode is based on the P-N junction. This diode is constructed from two layers of semi-insulating silicon, a P-type layer and an N-type layer. When a voltage is applied to the diode, the P-N junction will become forward biased and the diode can conduct current in one direction. When the applied voltage is reversed, the diode becomes reverse-biased and it stops conducting current. This process is known as rectification, as it allows DC current to flow in only one direction. This diode is not suitable for high frequency AC applications, as it exhibits slow switching speeds.

Advantages and Limitations

The primary advantages of the SDM02U30LP3-7B diode compared to other types of diode rectifiers are its high surge current capabilities and its low reverse current leakage. Its UL-certified rating also ensures that it is safe for use in sensitive electronics applications. However, it does have some limitations, such as its limited voltage range, slow switching speeds, and a maximum reverse leakage current of 200μA at 75V.

Conclusion

The SDM02U30LP3-7B is a high voltage single rectifier diode with high surge current capabilities and low reverse current leakage. This diode is suitable for use in applications such as DC-DC converters, power switch mode PSUs, and inverter and switching circuits. Its primary advantages are its high surge current capabilities and its low reverse current leakage, however it also has some limitations such as its limited voltage range, slow switching speeds, and a maximum reverse leakage current of 200μA at 75V.

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