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RF High-Q MLCC: Low Loss, High Q for RF & Microwave

Independent sourcing support for high-Q MLCC capacitors used in RF matching, filtering, 5G base stations, IoT modules, and microwave applications.

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What are RF High-Q MLCC?

RF High-Q MLCC are ceramic capacitors optimized for low equivalent series resistance (ESR) and high quality factor (Q) at RF and microwave frequencies. They use C0G (NP0) dielectric for exceptional stability and are essential for RF matching networks, filters, oscillators, and coupling/decoupling in 5G, IoT and RF module applications.

Key Takeaways

  • High Q (typically >2000 at 1MHz) for low insertion loss
  • C0G (NP0) dielectric: near-zero temperature coefficient (±30ppm/°C)
  • Ultra-low ESR and ESL for RF matching and filtering
  • Widely used in 5G base stations, IoT modules, RF front-end, and test equipment
  • Non-magnetic options available for medical and scientific instruments
DielectricC0G (NP0)
Q FactorTypically >2000 at 1MHz
Temperature Coefficient±30ppm/°C
Capacitance Range0.1pF – 100nF
Voltage Ratings25V, 50V, 100V, 200V, 250V
Package Sizes0201, 0402, 0603, 0805
Key ApplicationsRF Matching, Filters, Oscillators, 5G Base Stations, IoT, RF Modules, Test Equipment

Typical Applications

5G Base Stations IoT ModulesRF Front-End Antenna MatchingRF Filters VCO / OscillatorsMedical Imaging Test Equipment

Related Brands

MurataTDKJohansonKYOCERA AVXKEMETTaiyo Yuden

Send RFQ for RF High-Q MLCC

  • Target capacitance and tolerance
  • Q factor requirement
  • Frequency of operation
  • Package size constraint
  • Non-magnetic required?
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FAQ — RF High-Q MLCC

What is Q factor and why does it matter for RF MLCC?

Q factor is the ratio of stored energy to dissipated energy per cycle. Higher Q means lower insertion loss, which is critical for RF matching networks, filters, and oscillators. C0G MLCC typically offer Q > 2000.

C0G vs X7R for RF applications — which should I choose?

Always choose C0G (NP0) for RF applications that require low loss, high Q, and frequency stability. X7R has higher loss and significant capacitance variation with temperature and voltage, making it unsuitable for precision RF circuits.

Do I need non-magnetic MLCC for my application?

Non-magnetic MLCC are recommended for MRI, NMR, scientific instruments, and any application sensitive to magnetic interference. Standard MLCC with nickel electrodes may cause artifacts. Specify non-magnetic (copper/palladium electrodes) when submitting RFQ.

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