Product category:
Capacitors
News Release from: AVX | Subject: Capacitors for audio applications
Edited by the Electronicstalk Editorial
Team on 21 December 2005
Capacitors are a sound idea for audio
design
Niobium oxide and tantalum capacitors manufactured by AVX provide high capacitance performance in audio applications.
Niobium oxide and tantalum capacitors manufactured by AVX provide high capacitance performance in audio applications Delivering a clear and rich flow to headphones and speakerphones, the parts realise the low frequency response demanded by high quality audio equipment
This article was originally published on Electronicstalk on 25 Jul 2008 at 8.00am (UK)
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Medium-power devices are targeted at situations where standard capacitors cannot handle the high-frequency ripple currents experienced.
OxiCap niobium oxide capacitors combine non-burning features and low-failure rates, presenting enhanced safety, reliability and performance in high-end audio applications such as flight audio systems.
A COTSplus version is currently under development for military radio.
NOJ OxiCap series (C case size, 220uF/4V) is widely used for audio applications in game consoles, notebooks, and entertainment systems.
Unlike aluminium devices, niobium oxide parts do not suffer from dry out, which typically occurs at continuous operating temperatures of between 40 and 85C.
Offering an MTBF in the range of 200 to 500khs, OxiCap performs 100 times better than aluminium electrolyte capacitors.
For space-constrained applications requiring high capacitance devices, T-case tantalum TLC series capacitors offer a capacitance of 220uF, a rated voltage of 3V and a maximum height of 1.2mm.
The T case is suitable for slim portable devices (PDAs, mobile phones, and similar handheld equipment).
Tantalum is often preferred to ceramic in audio applications as high CV MLCC capacitors have an associated piezoelectric effect, causing unwelcome noise at audio frequencies.
Thanks to high capacitance stability with temperature and applied DC voltage, tantalum technology is suitable for low and middle frequency coupling.
AVX tantalum and OxiCap capacitors are capable of withstanding three times reflow profile up to 260C.
Both technologies are manufactured and tested to comply with the latest lead-free, RoHS, and JEDEC020C requirements. Request a free brochure from AVX ...
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