Epcos has extended its CeraDiode CDS4 series with a 3 pF type that has the same solder pad dimensions (2.5 x 0.8 mm) as a TVS diode in an SOD 323 package.
The latest type CDS4C16GTH can be used as a drop-in replacement for diodes so that users can avoid redesign of circuit boards.
Signal distortion is largely avoided. Semiconductors that cannot drop below the 5 pF threshold cannot satisfy demands for higher transmission rates.
The high-speed diode is used for ESD protection of data and video lines with high data rates, such as USB 2.0, ethernet and Firewire.
The company also offers a standard type (CDS4C12GTA) rated at 68 pF with the same footprint. This variant is used for general ESD protection and as an EMC filter for audio lines.
Both types have a response time of less than 0.5 ns. Further advantages include low leakage currents and no degradation at temperatures up to +85°C.
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