This is mostly directed to @baldengineer based on the recent podcast episode, but can anyone provide a link to an exceptionally well done capacitor datasheet? i.e. one that has all the right curves and parameters, etc. Just curious what one would look like and what it would include.
I am always a big fan of how Murata does their datasheets and specifications.
Parker beat me to a Murata example.
Vendors that provide part-number-specific datasheets tend to have more information. But even that isn’t enough. For example, the datasheet Parker picked provides graphs at room temperature.
There isn’t a graph that combines DC bias, temperature coefficient, and impedance WITH temperature. They are all individual graphs. Plus, none of these take into account tolerance binning and loss of capacitance due to aging.
Fortunately, vendors like Murata provide simulation tools so you can generate those graphs. But it would take a book per part number to give a single datasheet with ALL the appropriate curves.
Also, keep in mind what is good for an MLCC datasheet may not be good for an Aluminum Electrolytic. For example, it is VERY difficult to find a family or part-specific datasheet for an electrolytic that shows impedance across frequency. Even more frustrating is that most vendors do not provide tools to “simulate” it.
Agreed, I find myself specifying Murata parts with greater frequency than other manufacturers simply due to the availability of good (ish) data. TDK also seems to be getting with it too and providing a lot of the relevant data for MLCCs in my applications.
Are you me? Yeah I spec Murata whenever I can due to this. Knowing more about the performance is always a good thing.
Data is data my dude, saves me hair pulling and my customers money. The better the docs, the more likely I am to pick the part and argue for its value. (None of my customers want to pay for qualifying components, they just want it done yesterday with a 0% chance of failure)