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Safety capacitor range offers higher capacitance values

May 08, 2013 // Paul Buckley

Safety capacitor range offers higher capacitance values

Syfer has added to the company's UL and TÜV approved range of SMD 250 Vac safety capacitors.  To give engineers more scope in their designs, the upper capacitance value has been extended to 33 nF.

The new higher capacitance devices expand Syfer’s B16 (TÜV/UL approved) and B17 (TÜV approved) safety certified capacitor ranges.  Values in the 2220 package size are now available up to an impressive 22 nF for the B16 X2 rating, and to 5.6 nF for the B17 Y2/X1 rating.  If the ProtectiCap option is specified, the upper value for B16 devices increases to 33 nF.

The ranges are approved for direct connection across AC mains voltages up to 250 Vac. The devices are used for transient and surge protection in networked and mains-based electronic equipment, across a range of industry sectors.  The devices provide valuable safeguards against lightning strikes and other transient events that represent a threat to electronic equipment. Typical applications include data switches/modems and AC-DC power supplies.  

Syfer’s FlexiCap termination is an option available for all sizes in this range up to and including the 2220 format devices. Syfer is one of few manufacturers worldwide offering MLCCs with flexible terminations with certification to IEC, EN and UL safety standards.

For engineers designing equipment to meet IEC 60950, these parts are ideal as they have approvals to IEC 60384-14:2005, UL60384-14:2010 as well as UL 60950-1.

UL and/or TÜV approvals are often a critical factor in component choice for manufacturers supplying to top tier OEMs, service providers and systems builders. Gaining approvals for these range extensions is an essential part of Syfer’s new product introduction programme, designed to meet customer demand for increased capacitance ranges in smaller packages.  

Parts are readily available in sample and production volume quantities and can be supplied in standard tape and reel format.

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