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2SD2528 Application Field and Working Principle

The 2SD2528 is a Si NPN power transistor manufactured by ROHM. It is a part of their "standard transistor" series and is suitable for a variety of applications, such as audio amplifiers, DC-DC converters, voltage control circuits, switching regulators and so on. The 2SD2528 can handle up to a maximum collector current of 3.0A and has a collector-emitter breakdown voltage of 100V.

Typical Applications

• Switching regulators
• DC-DC converters
• Audio amplifiers
• Voltage control circuits
• Motor control applications
• LCD backlighting

Features

• High hFE transistor
• Outstanding hFE linearity
• Low saturation voltage
• Excellent transition frequency
• Low collector-emitter saturation voltage

Package

The 2SD2528 uses a TO-220 package. The TO-220 package has three pins, with the middle pin being the emitter, the left pin being the collector, and the right pin being the base.

Working Principle of the 2SD2528

The 2SD2528 is a bipolar junction transistor, meaning that it is made up of three layers of semiconductor material, with two p-type layers sandwiched between an n-type layer. When a voltage is applied to the base terminal, current can flow between the emitter and collector terminals. This current can either turn the transistor on or off, depending on the base voltage. When the transistor is turned on, it acts like a switch, allowing current to flow freely between the two terminals. When the transistor is turned off, current is blocked from flowing between the two terminals.

The 2SD2528 is designed to be used in applications where high current is required. It has a low saturation voltage, meaning that less voltage is needed to turn the transistor on and off, making it more efficient. It also has an outstanding hFE linearity, allowing it to respond very accurately to varying current levels. This makes it ideal for use in audio amplifiers and precision voltage control circuits.

Conclusion

The 2SD2528 is a versatile, high current NPN transistor manufactured by ROHM. It is suitable for a variety of applications, such as audio amplifiers, DC-DC converters, voltage control circuits, and switching regulators. With its low saturation voltage and excellent hFE linearity, the 2SD2528 makes an excellent choice for those looking for a reliable and efficient transistor.

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