Useful tips

Are tantalum capacitors polarity sensitive?

Are tantalum capacitors polarity sensitive?

Most tantalum capacitors are sensitive to the polarity of the applied voltage. Incorrect installation and/or improper circuit application that subjects the capacitors to reverse bias may lead to performance degradation or catastrophic failure (short circuit) of the capacitor.

Which side of capacitor is positive?

To tell which side is which, look for a large stripe or a minus sign (or both) on one side of the capacitor. The lead closest to that stripe or minus sign is the negative lead, and the other lead (which is unlabeled) is the positive lead.

Why some capacitors have polarity?

Electrolytic capacitors are polarized components due to their asymmetrical construction and must be operated with a higher voltage (ie, more positive) on the anode than on the cathode at all times. For this reason the anode terminal is marked with a plus sign and the cathode with a minus sign.

Are film capacitors polarized?

Film capacitors are made out of two pieces of plastic film covered with metallic electrodes, wound into a cylindrical shaped winding, with terminals attached, and then encapsulated. In general, film capacitors are not polarized, so the two terminals are interchangeable.

What is a mylar capacitor?

What is a Mylar capacitor? Mylar capacitor is a special type of capacitor right from its construction. As we know as capacitor is nothing but two parallel plates separated by a dielectric medium. The dielectric medium used in this type of capacitor is Polyester hence it is also called as polyester capacitor.

Why do non polarized capacitors have no polarity?

This pair is separated by the medium of non conducting ceramic material which is referred to as Dielectric. These are the set of capacitors that belongs to the category of non-polarized capacitors. Hence this doesn’t possess any polarity. It provides the flexibility of connecting this capacitor in the circuit.

What does the K5K mean on a capacitor?

Then you can get a data sheet which usually explains things nicely. The “K5K”, “K5X”, “C1K” that doesn’t match a temperature characteristic (X7R, NPO, C0G, etc.) is a manufacturer-dependent part marking to make use of the limited space available on the part.

What are the markings of a small capacitor?

Capacitance is 15e4, or 150,000 pf / 0.15 uF. Looks to be a Class 1 dielectric from the C1K. Is this a large cap? the tempco is very good. Orange Ceramic 333 K5X (what is 5X?

What does 10n mean on a ceramic capacitor?

33e3, or 33,000 pf / 33 nF. Tempco is either manufacturer specific, or incorrectly read. 10n very likely means 10 nf, or 10,000 pf. If it’s ceramic, it’s probably 50v. Likely a cheap part, if the voltage is not marked. Voltage rating is self evident.