surface mount emi filters surface mount c and pi filters sbsm signal track signal track signal track width 5.0 (0.197") earth track width = 2.00 (0.079") pad spacing = 4.7 (0.185") earth track signal track width = 5.0mm (0.197") pad spacing = 4.7mm ( 0.185 ) earth track width = 2.0mm (0.079") earth pad overall minimum = 7.80 (0.307") signal track width = 10.0mm (0.394") 1.0mm (0.039") pad spacing = 4 .7mm (0.185) 5.0mm (0.197") earth track width = 2.0mm (0.079") coloured area to be solderable and free from varnish coloured area to be solderable and free from varnish signal pad overall minimum = 9.40 (0.370") signal pad overall minimum = 9.40 (0.370") earth pad overall minimum = 7.80 (0.307") side bands provide earth contact points. bands are formed on the sides of the chip only and are not continuous underneath the chip. solder joints must be made to both side bands to ensure effective filtering. sm pi or c filter mounted to board and soldered in identical manner to chip capacitor. solder connections made to each end (signal lines) and each side band (earth track). signal track signal track chi p filter earth track chip soldered to signal track at both ends chip soldered to earth track at (both sides) sbsm l2 tin plated solderable termination area solder joint from filter manufacture l1 w t b2 b1 electrical configuration c & pi filters capacitance measurement at 1000hr point current rating pi section 10 amps dc c section 20 amps dc temperature rating -55c to 125c dc resistance 0.005 ohms max ferrite inductance, typical 0.5h (pi section only) weight 0.5g typical (0.18oz) mm (inches) l1 5.7 0.4 (0.224 0.015) l2 6.6 0.4 (0.260 0.015) w 5.0 0.4 (0.197 0.015) t 3.18 0.2 (0.125 0.005) b1 2.25 0.4 (0.088 0.015) b2 0.3 0.25 (0.012 0.01) specifications type no. capacitance dielectric rated dwv ( * = preferred value) (m = +/-20%) code voltage (vd.c.) (vd.c.) * sbsm#1 5000102mx#2 1.0nf x7r 500 750 sbsm#1 5000152mx#2 1.5nf x7r 500 750 * sbsm#1 5000222mx#2 2.2nf x7r 500 750 * sbsm#1 5000332mx#2 3.3nf x7r 500 750 * sbsm#1 5000472mx#2 4.7nf x7r 500 750 sbsm#1 5000682mx#2 6.8nf x7r 500 750 * sbsm#1 5000103mx#2 10nf x7r 500 750 * sbsm#1 5000153mx#2 15nf x7r 500 750 * sbsm#1 5000223mx#2 22nf x7r 500 750 sbsm#1 5000333mx#2 33nf x7r 500 750 * sbsm#1 5000473mx#2 47nf x7r 500 750 sbsm#1 5000683mx#2 68nf x7r 500 750 * sbsm#1 2000104mx#2 100nf x7r 200 500 sbsm#1 2000154mx#2 150nf x7r 200 500 * sbsm#1 1000224mx#2 220nf x7r 100 250 * sbsm#1 1000334mx#2 330nf x7r 100 250 * sbsm#1 0500474mx#2 470nf x7r 50 125 typical insertion loss (db) 50 ohm system no load c section pi section 0.1mhz 1mhz 10mhz 100mhz 1ghz 0.1mhz 1mhz 10mhz 100mhz 1ghz 0 0 4 23 41 0 0 5 33 60+ 0 0 7 26 45 0 0 9 40 60+ 0 0 10 30 50 0 0 11 47 60+ 0 0 13 33 52 0 0 14 54 60+ 0 1 16 36 55 0 1 19 57 60+ 0 2 19 39 57 0 2 24 60+ 60+ 0 4 22 41 60+ 0 5 29 60+ 60+ 0 7 25 44 60+ 0 7 36 60+ 60+ 0 10 29 46 60+ 0 11 42 60+ 60+ 0 13 33 48 60+ 0 14 51 60+ 60+ 1 16 35 50 60+ 1 16 57 60+ 60+ 2 19 39 54 60+ 3 19 60+ 60+ 60+ 4 22 41 57 60+ 5 21 60+ 60+ 60+ 7 25 45 60+ 60+ 8 23 60+ 60+ 60+ 10 29 49 60+ 60+ 11 27 60+ 60+ 60+ 13 33 52 60+ 60+ 14 35 60+ 60+ 60+ 16 35 55 60+ 60+ 17 41 60+ 60+ 60+ the sbsm range of surface mount emi filters has been designed for use on pcbs, and is suitable for both signal and power lines. capacitance values up to 470nf are available, with a 10a current rating for pi-section filters and 20a rating for ?c? types. the high capacitance, high current and high voltage ratings make them suitable for a wide range of applications including telecoms, mil/aerospace and industrial. note #1 for c filter insert ?c?, for pi filter insert ?p?. note #2 for taping on 7? reel insert ?t?, on 13? reel insert ?r?, if supplied in bulk insert ?b?. insertion loss figures quoted are for filters mounted within a partition. it should be noted that some degradation will occur a t higher frequencies for filters which are not fully shielded. pad dimensions - pi filter pad dimensions - c filter filtsmsbsm.ver2 c pi
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