Looking for a low TCC capacitance

[l.wickersheim]

Hi,

I am currently designing a reference module which needs to contain capacitances with low temperature coefficients (TCCs) and low drift
→ This is required since the uncertainty needs to be as low as possible

My question: Which capacitor type should I look for? The tolerance of the nominal value is not that important, since the nominal value will be determined before usage.
Needed nominal values: 10nF, 100nF, 1uF, 10uF, 100uF

Any help is appreciated. Product suggestions are appreciated as well!

Thanks in advance.

[AaronRollens]

I.wickersheim,

Thank you for your question and welcome to our community!

Before we get started I would like to share a link to a couple of previous posts with you. After you have reviewed them if you still have questions we can go from there.

Understanding Ceramic Capacitor Temp-Coefficients

A common question when looking at ceramic capacitors is what do the temperature coefficient numbers/letters mean? These numbers will generally break down to a temperature range and the variation in capacitance over that specific range. The first thing you need to understand with what standard and class you are looking at. These are split between the International Electrotechnical Commission (IEC) and the Electronic Industries Alliance (EIA) Here is a chart on the different classes and definiti…

Capacitor Quick Reference Guide

The table below provides a brief summary of different capacitor types and their relative merits, arranged approximately in terms of decreasing quantity (or increasing quality) of capacitance offered by each type. Capacitor type Sub-type/variant Approx. value range C*V product range Advantages Disadvantages/things to beware of Good for Lousy for C V Electric double layer, Supercaps 6.8mF to 4000F 2.1 to 75v .03 to 10,000 Exceptionally high C/V ratio. Possible alternative to…

I hope this helps!

[Troy_2808]

Hello l.wickersheim,

For values 10nF to 1uF ceramic capacitors with temp coeff NP0 would be a good option for low drift over wide temperature −55 to +125 °C.

Ceramic capacitor

Understanding Ceramic Capacitor Temp-Coefficients

A common question when looking at ceramic capacitors is what do the temperature coefficient numbers/letters mean? These numbers will generally break down to a temperature range and the variation in capacitance over that specific range. The first thing you need to understand with what standard and class you are looking at. These are split between the International Electrotechnical Commission (IEC) and the Electronic Industries Alliance (EIA) Here is a chart on the different classes and definiti…

Regarding the higher capacitance ratings you could be looking at the X7R temperature coeff. for ceramics. Or you may be interested in Film Capacitors with dielectric material PEN capacitors (polyethylene naphthalate, MKN).

pdf-generaltechnicalinformation.pdf

Best regards,