page 1 ? 2014, kr elec tronics, inc. 3178-120, rev 0, november 22, 2014 kr electronics, inc. kr electronics part number 3178-120 is a 120 mhz bandpass filter. the filter has a 3 db bandwidth of 9.5 mhz. other center frequencies and bandwidths are available. please consult the factory. general description kr electronics, inc. features ?? 120 mhz bandpass filter ?? 9.5 mhz 3 db bandwidth ?? 50 ? source and load ?? sma connectors ?? surface mount available 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 ? 2014, kr elec tronics, inc. 3178-120, rev 0, november 22, 2014 passband amplitude & group delay (1 db/div & 20 nsec/div) kr electronics, inc. 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 overall response (10 db/div)
page 3 ? 2014, kr elec tronics, inc. 3178-120, rev 0, november 22, 2014 kr electronics 3178-120 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 fc 120 mhz insertion loss at fc 3.8 dba max 2.8 dba typical 1 dbc bandwidth 7.5 mhz typical 3 dbc bandwidth 9.5 mhz 0.5 mhz 20 dbc bandwidth 15.7 mhz typical 40 dbc bandwidth 24.6 mhz typical 60 dbc bandwidth 39 mhz typical source and load 50 ? notes: 1. dimensions in inches 2. rectangular case 3. also available in surface mount package 1.5? x 0.5? x 0.5?
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