lo temp co RF ceramic capacitors for comms

Kyocera AVX has released low-ESR C0G/NP0 dielectric RF MLCCs (multi-layer ceramic chip capacitors) “inspired by communications market demand for smaller RF capacitors that deliver repeatable performance”, it said.

Called KGU, they come in values from 0.1 to 100pF with tolerances as low as ±0.05pF.

They come in four chip sizes: 01005, 0402, 0603 or 0805 (EIA).

Class I C0G, also called NP0, is a stable capacitor dielectrics, with a temperature coefficient 0±30ppm/°C “and essentially zero voltage coefficient”, claims the compnay.

For high capacity, the electrodes are base metal – copper plated with a tin/nickel alloy.

Ratings span 16 to 250V, and operation is across -40 to +125°C.

The company claims: low ESR, high Q and high self-resonant frequencies.

Picking the 0603 68pF version in the data sheet, these are around: 30mΩ (600MHz), ≥1,500 (1MHz) and 2GHz.

Applications are foreseen in filter networks, matching networks, high-Q frequency sources, tuning, coupling, bypassing and dc blocking.

Find the data sheet for the KGU series of MLCCs here