S85B

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S85B, or S85B rectifier diodes, are diodes designed to provide high current rectification in a wide variety of applications. They offer good performance as an efficient, cost-effective solution for a variety of power rectifying needs. It is suitable for power supply systems at frequencies up to a few kHz and is available in a variety of packages.

Applications

S85B diodes are suitable for a wide range of applications due to their low forward voltage drop, high blocking voltage rating and low forward current. They are commonly used in power supplies and other power rectification applications. They can also be used in safety power supply applications, such as surge protection and isolated switch mode power supplies. In addition, they are useful for reversed polarity protection, battery charge balancing, half wave rectifying and other power rectification needs.

Features

S85B rectifier diodes feature a low forward voltage drop, high blocking voltage rating and low forward current. This makes them well suited for use in applications where power supplies and rectification are important, such as SWITCHMODE power supplies. Some of the features include:

• Good thermal stability and load regulation
• High current capability – up to 1.5 A in some versions
• High voltage rating – up to 1.2 kV in some versions
• Low forward voltage drop – typically 1.1 V
• Low reverse leakage current – typically in the microamp range
• Low junction temperature rise
• Low noise and ripple
• Low EMI and RFI emission
• High voltage protection

Working Principle

The working principle of S85B rectifier diodes is based on their property of becoming conductive when the voltage across their terminals is raised above their forward voltage drop. When a voltage, such as the output of a power supply, is applied across the diode, it is able to conduct electricity in a unidirectional manner, allowing current to flow in one direction only. This allows the output voltage of a power supply to be rectified and filtered to provide the desired DC output power.

S85B rectifier diodes are also useful in protection applications, such as the protection of sensitive electronics from incoming voltage spikes. They are able to limit the amount of current that passes through them to a maximum level and thus prevent damage from occurring to electronics. They also offer overvoltage protection by providing a safe level of current to pass through if the input voltage is higher than the maximum allowable level.

S85B rectifier diodes offer a cost-effective solution for a wide range of power rectification needs. They are designed to provide high current rectification, good thermal stability and load regulation, and low forward voltage drop, making them an ideal choice for use in power supplies, safety applications and other power rectification needs.

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