Materials and functions of Y5U, Y5V and Y5P

Y capacitors Y5U, Y5V and Y5P represent the material characteristics of e, f and b respectively. It means that in the temperature range of -25℃ ~+125℃, different materials have different temperature change rates, so using the same products in different environments has different requirements for materials. Different products require different materials.

Y5U, Y5V and Y5P are all ceramic capacitors, and they all belong to Class III. The effective working temperature ranges from-30℃ to+85℃, but they can be further subdivided into different grades.

Y5P has the best temperature compensation performance, and the change range of capacitance value in the whole temperature range is 10%.

Y5U has no compensation for temperature changes, and the capacitance changes in the whole temperature range from+22% to 56%.

Y5V has no compensation for temperature change, and the capacitance value varies from+30% to 80% in the whole temperature range.

NPO (COG): A class of dielectric (Class-1), which has the most stable electrical performance and basically does not change with the change of temperature, voltage and time, and is suitable for safety capacitors that require high stability. In fact, we often talk about precision capacitors, which is this kind, because the capacitance values of capacitors made of other materials vary with temperature. Temperature characteristic of NPO safety capacitor is-55 ~+125 | change of capacitance | |< 30PPM/°C (PPM is one millionth).

X7R (2X1): Class II dielectric, with stable electrical performance, and no significant change in performance when temperature, voltage and time change. It is suitable for DC blocking, coupling bypass and full-frequency identification circuits with low requirements on capacity stability. Because X7R is a ferroelectric, it can produce capacitors with larger capacity than NPO dielectric. Temperature characteristics of X7R capacitor-55 ~+125 | Change of capacitance |< 15% Aging characteristics less than 1% in 10 years.

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