FJN3309RBU

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The FJN3309RBU is a single, pre-biased bipolar junction transistor (BJT) that consists of two PNP transistors connected in series. It is designed to provide a low-power, cost-effective solution for applications that require high voltage and low quiescent current. The FJN3309RBU is suitable for a wide range of applications, including power supply, automotive, consumer, and light-emitting diode (LED) lighting.

The FJN3309RBU is designed to provide low quiescent current operation and a high voltage rating of up to 120V. It offers a breakover voltage of 30V and is designed to provide a fast switching speed of up to 25kHz. The device also offers a wide temperature range of up to 150C, making it suitable for use in extreme temperature environments.

The device works by combining the biasing characteristics of two built-in transistors connected in series. The first transistor is biased to provide a base current to the second transistor, while the second transistor is biased to provide increased current gain. The two transistors are connected together in a "push-pull" configuration, with the second transistor\'s collector connected to both the emitter of the first transistor and the output of the device.

The FJN3309RBU is ideal for power supplies and LED lighting applications due to its fast switching speed, low quiescent current, and high voltage rating. It can also be used in automotive, consumer, and industrial applications. The device is available in a wide range of package options, including a surface-mount option. This allows designers to easily integrate the device into their system designs.

The FJN3309RBU is a versatile and cost-effective solution for a variety of applications. Its low quiescent current, high voltage rating, and fast switching speed make it the ideal choice for power supply, automotive, consumer, and LED lighting applications. The device offers a wide range of package options and is designed to provide a reliable and robust performance even in extreme temperature environments.

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