Ceramic Capacitor 104 Voltage Rating

2a is a 100vdc rating according to the eia electronic industries alliance standard.

Ceramic capacitor 104 voltage rating. Capacitor is a passive component which can store a charge q. Codes of polyester film and metallized film capacitor. Meaning they hold a certain size charge 1µf 100µf 1000µf etc at a certain voltage 10v 25v 50v etc. Ceramic capacitors can be classified based on two main parameters.

The voltage rating could be 50v it could be 100v. The rating is defined during the manufacturing of the capacitor. Ceramic caps are really durable mlcc s are often tested at rated to 200 rated voltage for 1000 hours before failure. The voltage rating always mentioned on it.

The main thing you need to know about capacitors is that they store x charge at x voltage. The voltage rating of the ceramic capacitor depends on the size and the capacitance value. It could even be 250v. A ceramic capacitor marked 104 has a value plus as much as 80 to 20 tolerance of 100000pf or 100nf or 0 1uf.

Remember that capacitors are storage devices. The first two digits 10 of this code are first two digits of capacitor value and third digit 4 gives the number of zeroes to be added so as to get capacitor value in pico. Generally smaller ceramic capacitance design for low voltage devices and the voltage rating can be designed up to 15kv for small. The 104 capacitance indicator has no bearing whatsoe.

That being said i often find that higher voltage mlcc s can actually be cheaper than the lower voltage for a given capacitance due to higher industry volume for the higher voltage ratings. If a capacitor is marked with 2a474j the capacitance is decoded as described above the two first signs is the voltage rating and can be decoded from the table given below here. The 3 digit code 104 written over ceramic capacitor indicates its value.