Content for 2N5551


The 2N5551 is an NPN amplifier Transistor with an amplification factor (hfe) of 80 when the collector current is 10mA. It also has decent switching characteristics (Transition frequency is 100MHz) hence can amplify low-level signals. Due to this feature, the transistor is commonly used for amplification of audio or other low power signals. So if you are looking for an NPN transistor for you amplifier circuit then this transistor might be the right choice.

DIY Brushless DC Motor (Newman Motor)

“This project I present you is a affordable STEM project to teach our kids how to build a brushless DC electric motor with its electric controller and to learn basics about electromagnetism. “A brushless DC electric motor (BLDC motor or …

Fridge’s Door Warning (easy Schematic)

“make an easy fridge’s door warning with simple parts”

An android reflow controller that anyone can build

“Welcome to the never ending saga of Andy and his reflow controllers. About a year ago I published a project writeup showing how I built a PID-based reflow controller. It featured a 640x360 graphical LCD from the Sony U5 …