EEssential

Here I give a review of electronic components that I used, particular on their quirks. Atmega644A Atmega644A has the same peripherals as ...

"An engineer has probably about 8 productive hours in a week. So why do we work 40 hours? Because we don't know when the 8 produc...

The clock tolerance issue is analyzed in the Maxim App Notes 2141.  Assuming 16-clock sampling scheme, the tolerance is +/-5 clocks for nomi...

Pi seconds are a nano-century. Maximum current on PCB trace: 500mA per 10mil 1oz trace. PCB 1oz resistance: 0.5mOhm per square

From Vishay App Notes, the thermal resistance of SMT resistors  

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...