Infineon SMBT3904E6327: General-Purpose NPN Switching Transistor

The Infineon SMBT3904E6327 is a high-performance NPN bipolar junction transistor (BJT) designed primarily for switching and amplification in a wide range of electronic applications. As a surface-mount device in the compact SOT-23 package, it is engineered to meet the demands of modern, space-constrained PCB designs while delivering reliable and efficient performance.

This transistor is characterized by its high current gain, typically ranging between 100 and 300, which allows it to effectively amplify small signals. Its low saturation voltage ensures minimal power loss when the device is in the fully on state, making it highly efficient for switching applications such as driving relays, LEDs, or other low-power loads. The SMBT3904E6327 can handle a collector current (IC) of up to 200 mA and supports collector-emitter voltages (VCE) of up to 40 V, providing sufficient headroom for various low-voltage circuit designs.

A key advantage of this component is its fast switching speed, which is crucial for applications requiring rapid on/off transitions, such as in pulse generators or digital logic interfaces. The device is also known for its excellent thermal performance and stability, attributes that are essential for maintaining reliability under continuous operation.

Common applications include use in:

- Automotive electronics

- Consumer electronics

- Industrial control systems

- Signal amplification stages

- Interface circuits and driver modules

ICGOOODFIND: The Infineon SMBT3904E6327 stands out as a robust and versatile switching transistor, offering an optimal balance of electrical performance, package size, and reliability for general-purpose design needs.

Keywords:

NPN Transistor

Switching Applications

SOT-23 Package

High Current Gain

Low Saturation Voltage