Supplier sections
Rate this page
QM Series from AVX significantly reduces noise characteristics, provides high capacitance and low working voltage
AVX has expanded its multilayer ceramic capacitor family to include a low noise, high capacitance version for audio frequency applications. The QM Series significantly reduces noise characteristics while providing high capacitance with a low working voltage, making it ideal for mobile phone, hard disk drive, and LCD panel driver circuit applications. In addition, the QM Series is well suited for use as a low pass filter for audio amplifier output or as a coupling capacitor.
"Polarization causes high dielectric ceramic to have a piezo-electric response. This piezo effect can be passed to the PCB and cause board ringing. Conversely vibrations from the PCB can induce very low spurious voltages across the capacitor. Standard MLCC construction has multilayer electrode direction horizontal to the PCB, which can allow mechanical resonance from the PCB to induce audio frequency noise. The QM Series' inherently reduces low frequency audio noise," said Kazushige Takamori, product manager at AVX.
The lead free, RoHS compliant QM Series is available in Class II X5R dieletric and case sizes from 0603 to 0805 with voltage ratings ranging from 4V to 16V. The X5R version features a high CV rating, an operating temperature range of -55°C to +85°C and a capacitance variation is within +/-15%.
Click here to download the data sheet.
For more information, or details on the full range of AVX products available from Anglia, please email info@anglia.com
This news article was originally published in March 2011.