Series Resonant Frequency
The inherent series resonant frequency (SRF) of a single layer chip capacitor is the highest of any discrete lumped constant capacitor. Since connections must be made to the chip, the resultant SRF is lowered and mainly determined by the inductance of the connections (wire or ribbon), the size of the chip and the location of the connections. As a result of these variables, among others, the best feasible determination of usability is in situ. Please consult our factory for samples.
A curve could be presented to show the relation between the capacitance and the operating frequency for an arbitrarily assumed value of the inductance of the connections, but it is of no practical value due to the variables mentioned above.
A split electrode chip capacitor (CSB) when used in microstrip coupling has a higher SRF than a two electrode (CSA) chip capacitor of the same capacitance with wire or ribbon connections. This is because of the elimination of the lead inductance in the case of split electrode chip capacitors.
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General Electrical
Characteristics
Operating Frequency:
Up to 100 GHz
Voltage Rating:
< 5 mils thick–50 WVDC
(25 WVDC for 200 material)
> 5 mils thick–100 WVDC
(50 WVDC for 200 material)
Insulation Resistance tested at 50 Volts for all materials except C-200. C200 tested at WVDC which is 16-25V for < 6 mils thick and 25-50V for > 6 mils. Ratings up to 1000V available, consult factory
Dielectric Test Voltage:
250% voltage rating,
impervious to static discharge
Test Frequency:
1 MHz @ 1V (below 1,000pF)
1 kHz @ 1V (above 1,000pF)
Applications
• Microwave Integrated
• Components
• GaAs Integrated Circuits
• DC Blocking
• RF Bypass
• Decoupling
• Temperature
• Compensation Circuits
• Filtering
• Tuning
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