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Yearly Popular. This video explains some of the points related to Ceramic capacitors dielectrics. Shivam Katiyar 13 June at Subscribe to: Post Comments Atom. Ali Shirsavar. Lecture 3: Bipolar Junction Transistor : Modes of Lecture 2: Bipolar Junction Transistor : Modes of Lecture 1: Bipolar Junction Transistor : Physical Lecture 03 : Ideal Transformer, Dot Convention and Week Close loop control : Single phase inverte Week Close loop control : Simulation of curren Week Close loop control : Slope compensated cu Week Close loop control : Instability in curre Week Close loop control : Current control for Week Close loop control : Simulation of close Or by adding a small amount of other ferroelectric oxides, such as CaTiO3 or SrTiO3, to form an "extended" temperature compensation ceramic, it can exhibit an approximately linear temperature coefficient and the dielectric constant increases to These two kinds of dielectric loss are small, the insulation resistance is high, and the temperature characteristic is good.
It is especially suitable for coupling capacitors in oscillators, resonant circuits, high-frequency circuits, and other circuits that require low loss and stable capacitance, or for temperature compensation.
Such as the common C0G. This is a shorthand for Negative-positive-zero, which is used to indicate the temperature characteristics. It is indicated that the capacitor temperature characteristic of NPO is very good, and the capacitance drift does not occur with the change of positive and negative temperature.
As we know from the front, c0g is the best temperature stability in class I ceramics, with a temperature characteristic of approximately 0 and satisfying the meaning of "negative-positive-0". So c0g in fact, and NPO is the same, but it is two standard two methods of expression of course, the value of small, slightly less precision c0k, c0j, etc.
Similarly, the u2j corresponds to the group code in the Mil standard as N These capacitors are larger than capacitance, with a non-linear change in electrical capacitance with temperature, a large loss, often used in electronic equipment for bypass, coupling or for other low-loss and capacitance stability requirements of the circuit. What is the difference between x5r, x7r, y5v, and z5u? The difference is mainly in the temperature range and capacitance with temperature change characteristics.
The following table indicates the meaning of these codes.
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