What is the chip capacitor 331

What is a capacitor design?

Capacitor design (dielectric thickness, number of layers, and cover layer thickness) is selected for any requirement by a computer, which is programmed to calculate the best design for the electrical parameters required (capacitance, working voltage, dielectric withstanding voltage, and I.R.).

What is a high Q capacitor?

A near-perfect capacitor, or a high Q capacitor, therefore, has a Q approaching infinity. The Q factor is dependent on the frequency, ie: the polarization mechanisms operating at any given frequency. The temperature coeficient (TC) of a ceramic dielectric defines the deviance in capacitance which occurs over a given temperature range.

What does a 10 pF capacitor look like?

It can be said that, for example, a 10pF capacitor could look like a 1000pF capacitor as the SRF is approached. See Figure 11 above for Johanson SPICE equivalent circuit for a capacitor. The values shown are for a typical 10 pF capacitor at 900 MHz.

How do you evaluate a high frequency chip capacitor?

One of the most important parameters in evaluating a high frequency chip capacitor is the Q factor, or the related Equivalent Series Resistance (ESR). In theory, a “perfect” capacitor would exhibit an ESR of 0 (zero) ohms and would be purely reactive with no real (resistive) component.

What is a perfect capacitor?

In theory, a “perfect” capacitor would exhibit an ESR of 0 (zero) ohms and would be purely reactive with no real (resistive) component. The current going through the capacitor would lead the voltage across the capacitor by exactly 90 degrees at all frequencies.

Can a chip capacitor increase capacitance?

In application, the AC voltage across the chip capacitor may in some cases well exceed the 1.0 ± .02 Vrms test voltage, generating a substantial increase in capacitance.