page 1 ? 2013, kr elec tronics, inc. 2903-S+, 140 mhz bandpass, rev 0, november 5, 2013 ch2 s31 log 1 db/ ref 0 db cor ch4 s31 del 5 ns/ ref 27 ns center 140 . 000 000 mhz span 80 . 000 000 mhz cor smo 10 sep 2009 15:35:25 2 4 ch1 s31 log 10 db/ ref 0 db start 10 . 000 000 mhz stop 1 000 . 000 000 mhz 10 sep 2009 15:37:18 kr electronics, inc. kr 2903-S+ is a 140 mhz group delay equalized elliptic band- pass filter. the filter has a minimum 2 db bandwidth of 80 mhz. other center frequencies and bandwidths available. please con- sult the factory. general description kr electronics, inc. features ?? 140 mhz elliptic bandpass ?? 80 mhz minimum 2 db bandwidth ?? group delay equalized ?? surface mount ?? 50 ? source and load ?? rohs typical performance www.krfilters.com passband amplitude & group delay (1 db/div & 5 nsec/div) kr electronics, inc. 91 avenel street avenel, nj 07001 www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 web email phone fax overall response (10 db/div)
page 2 ? 2013, kr elec tronics, inc. 2903-S+, 140 mhz bandpass, rev 0, november 5, 2013 parameter specification filter type bandpass rohs center frequency 140 mhz insertion loss < 2 db typical 2 db bandwidth 80 mhz min (100 mhz typical) group delay variation 110 mhz to 170 mhz 3 nsec max rejection at 80 mhz & 272 mhz 50 db min typical 1 db bandwidth 94 mhz source and load 50 ?? typical 2 db bandwidth 100 mhz typical 40 db bandwidth 145 mhz typical 50 db bandwidth 158 mhz typical 60 db bandwidth 171 mhz kr electronics 2903-S+ kr electronics, inc. physical dimensions specifications www.krfilters.com kr electronics, inc. 91 avenel street avenel, nj 07001 www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 web email phone fax notes: 1. surface mount package ? metal cover open frame 2. dimensions in inches 3. maximum reflow temperature is 230 c for 10 sec maximum. 4. if boards are cleaned after installation, units must be completely dried.
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