page 1 ? 2010, kr electronics, inc. 2980+, rev 0, april 27, 2010 ch1 s31 log 10 db/ ref 0 db center 140 . 000 000 mhz span 250 . 000 000 mhz cor 15 may 2010 07:43:35 kr electronics kr electronics part number 2980+ is a 140 mhz elliptic type bandpass filter. the filter has a minimum 2 db bandwidth of 75 mhz. other center frequencies and bandwidths are avail- able. please consult the factory. general description kr electronics, inc. features ?? 140 mhz bandpass filter ?? 75 mhz minimum 2 db bandwidth ?? elliptic type response ?? fast transition to stopband ?? 50 ? source and load ?? surface mount ?? also available with sma connectors typical performance 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 overall response (10 db/div)
page 2 ? 2010, kr electronics, inc. 2980+, rev 0, april 27, 2010 effective passband amplitude & group delay (1 db/div & 20 nsec/div) ch2 s31 log 1 db/ ref 0 db cor ch4 s31 del 20 ns/ ref 0 s center 140 . 000 000 mhz span 80 . 000 000 mhz cor smo 15 may 2010 07:41:50 2 4 kr electronics typical performance kr electronics, inc. 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
page 3 ? 2010, kr electronics, inc. 2980+, rev 0, april 27, 2010 kr electronics 2980+ 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 parameter specification notes filter type bandpass center frequency 140 mhz insertion loss at 140 mhz 3 db max < 1 db typical 2 db bandwidth 75 mhz min 80 mhz typical attenuation at 84.3 mhz 50 db min attenuation at 195.7 mhz 50 db min source and load 50 ? rohs yes 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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