Two recently introduced series of DC-Link capacitors from Panasonic Automotive & Industrial Systems Europe benefit from key technological advantages initially developed for the automotive segment. Mainly targeted at the power inverter and switching power supply markets, the EZPQ and EZPE series serve as AC-Link and DC-Link capacitors respectively. Both series use Panasonic’s patterned metallisation technology.
This technology delivers long-term reliability as well as fail-safe functioning for demanding applications. The patterned metallisation behaves as a fuse function, disabling a segment of the metalised sheet, in effect preventing the capacitor from failing in short mode.
In addition, the use of zinc metallic spray for electrode formation as well as aluminium metallisation offers increased resistance to humidity. Forming the casing with a vacuum process utilising a Panasonic-manufactured epoxy resin, results in an even thickness with no air bubbles and eddies, further increasing humidity resistance. Both EZPQ and EZPE series capacitors have a long product life of minimum up to 100,000 hours, a wide operating temperature range of -40 up to 85°C, are highly reliable, flame retardant and fully RoHS compliant. The devices also benefit from low ESR values as well as low losses.
Technical details of EZPE series products include a rated voltage of 500, 800, 1,100, or 1,300VDC, a rated capacitance of 10-110μF, and a capacitance tolerance of ±10% in 2-pin and 4-pin variants. The EZPE series is also available in a low profile series at four voltage levels between 450-630VDC, with a capacitance range from 10-66µF.
Technical details of EZPQ series components include a rated voltage of 250VAC, a rated capacitance of 12-36μF with capacitance tolerance of ±10%.