FJD3305H1TM Discrete Semiconductor Products

Introduction

The FJD3305H1TM transistor is a double-diffused vertical NPN transistor, also known as a bipolar junction transistor (BJT). It is manufactured by Fairchild Semiconductor and is commonly used in amplifying and switching applications. This article will explore its application field and working principle in detail.

Application Field

The FJD3305H1TM is an 85V, 6A transistor with a high current gain and low saturation voltage. It is typically used in applications such as audio amplification, DC voltage sensing, power switching, and motor control.

Working Principle:

The FJD3305H1TM utilizes the base-emitter junction of the NPN transistor\'s internal structure to control the flow of current. When a small signal voltage is applied to the transistor, the current flow through the base-emitter junction increases, causing the emitter current to increase. This higher current then flows through the transistor\'s collector, resulting in a larger output current.

Conclusion

The FJD3305H1TM is a double-diffused vertical NPN transistor commonly used in amplifying and switching applications. Its application field is broad, but it is particularly well-suited for audio amplification, DC voltage sensing, power switching, and motor control. It operates on a base-emitter junction that increases the flow of current when a small signal voltage is applied, resulting in a larger output current.