Selection guides, in-depth tutorials and technical parameters
What Is a Good Capacitor? Five Measures That Matter More Than the Brand "What is a good capacitor?" sounds like a simple question, but it gets the wrong answer constantly in sourcing meetings and repair benches. A glossy brand, a high price tag, or a fat capacitance number does not make a capacitor good. A capacitor [...]
Chip Capacitor Types: How NP0, X7R, X5R, Z5U, and Y5V Compare Two multilayer ceramic capacitors that look identical can behave completely differently in the same circuit, and the difference is hidden in a short code on the datasheet: NP0, X7R, Z5U, Y5V. These are not model names. Each is a promise about how much the capacitance [...]
Aluminum electrolysis basically consists of positive electrode foil + oxide film (cannot exist independently of the positive electrode foil) + electrolytic paper (impregnated with electrolyte) + negative electrode foil + shell + rubber plug + lead + sleeve The first step: the corrosion of aluminum foil: increase the area by tens to hundreds of times, uneven [...]
The capacitor production process includes cutting, winding, impregnation, assembly, aging, sealing, printing, casing, measurement, packaging, inspection and other processes. Among them, the cutting of aluminum foil is to cut a whole piece of aluminum foil into several small pieces to make it necessary for proper capacitor manufacturing; in the winding of electrolytic paper, the electrolyte in [...]
A prototype that works on a breadboard and misbehaves on a printed circuit board is one of the oldest frustrations in electronics. The schematic is identical, the components are the same, yet the assembled board resets itself intermittently or fails EMC testing. Nine times out of ten the cause is not a defective part but missing [...]