Is there a general self resonance frequency characteristics for MLCC capacitors? If I make a RC low pass filter, say using 1kohm and 15nF 0603 with fc = 10.6kHz, I guess it won't work as LPF beyond the self resonance frequency of capacitor. I couldn't find the self resonance frequency characteristics for capacitor (C0603C153F3GACTU) in its datasheet. Is there a general estimation? I am interested to know the frequency response of the filter for around 100-200 MHz.
Electronic – Self resonance frequency for MLCC capacitor
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Your output filter response should basically be the 20 dB/decade response of the capacitor.
The ESR zero will depend on the number and type of capacitors you're using. It's the natural corner frequency formed by the effective ESR and total capacitance:
\$ F_z = \dfrac{1}{2 \pi \times R_{esr} \times C_{out}} \$
The gain slope will swing more positive at the zero, and you'll see the phase changing as well. You can easily use a free SPICE simulator like LTSpice IV to model the output precisely (with ESRs, ESLs, etc.) and generate a Bode plot.
What gives? Cost, availability are non-technical factors. The smaller ones cost about triple the price in 1000's. You can check and see what other sources you have available if the TDK ones are not in stock.
The voltage coefficient also tends to be higher for smaller parts, meaning you'll typically see less capacitance at operating voltage for the smaller part.
Edit: You'll have to dig pretty deep to find the voltage coefficient specifications, on the manufacturer's websites. Here's some representative performance of similar Japanese-made parts (Murata), thanks to a Maxim article.
Edit2: I really suggest you go to http://www2.tdk.co.jp/ccv/step3.asp. It's an online tool that will show you the typical characteristics of a TDK component directly from the part number. Most of the characteristics of the smaller part are worse including tempco and voltage coefficient (the 0603 almost does a disappearing act at 10V bias).
For what it's worth, I went through this selection process a few weeks ago and chose 0805 parts for two new products.
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Best Answer
MLCC devices in surface mount packages all have a self-inductance (as indeed does anything carrying current).
The typical values for some common case sizes:
0402 : about 700pH
0603 : about 900pH
0805 : about 1.1nF
1206 : about 1.4nH
I am also using reverse geometry devices, specifically 0204 and 0306 with self inductances of about 280pH and 350pH respectively.
These are approximations as the effective inductance is determined by the specifics of the actual sizes of the internal plates (which varies across manufacturers).
You can calculate the SRF using the standard series resonance formula and this should be within about 5% (because the self resonance variation is the square root of the LC variation).
[Update: Added calculated SRF and impedance plot]
The part above would be self-resonant at about 43MHz, and here is the plot of Z vs. F:
HTH