EEssential

ChipQuik The normal solder (63% Sn 37% Pb) has a melting temperature of 361F (183C).  ChipQuik has a very low temperature solder (48% Sn 2...

Motor winding insulation temperature ratings NEMA classes are A (105C), B (130C), F (155C), H (180C).   Class B is the most prevalent since...

Ferrite bead vs Inductor The ferrite bead is lossy at high frequencies, i.e. low Q or resistive.  The high frequency energy are absorbed a...

PCB layout generally is not a task that many EE's are proficient at. They may even consider it somewhat beneath them and it is the work ...

Bond wires The standard bondwire is 1mil in diameter and 2mm in length.  It has very roughly 1nH/mm. [T. Lee, CMOS RF]  A D-PAK MOSFET (AO...

Altium Designer promotes hierarchical design, which seems to make sense.  It can help manage large designs and encourage design reuse.  Thos...

Backdrilling Backdrilling is a PCB design technique to remove stub from a through-hole.  It is to reduce reflection from the stub for the ...