Capacitor polarity capacitor labeling this capacitor is axial. Capacitor polarity capacitor labeling some capacitors are unpolarized like resistors. Antique Radio Forums View Topic Which End Of This File Dry Electrolytic Capacitor Pic5 Jpg Wikimedia Commons 4700uf 35v 20 Axial Lead Electrolytic Capacitor It has the negative pin identied. Axial capacitor polarity marking . Terry sturtevant electronics indentifying capacitor polarity. The first one has no markings at all. Somebody correct me if im wrong but i would say that there is an arrow somplace on your capacitor probably like that one that points to which end is negative. The aluminum people are obsessed with the negative lead and the tantalum people with the positive lead. The polarity of electrolytic capacitors is important and manufacturers have a variety of ways of marking the polarity...
