27111 aliso creek road, suite 175 aliso viejo, california 92656 phone: (714) 362-4211 fax: (714) 362-4212 m p premier magnetics inc. specifications subject to change without notice. 18 12345678 16 15 14 13 12 11 10 9 .390 (9.91) max .020 (.51) .010 (.25) .100 (2.54) typ .020 (0.51) typ .050 (1.27) typ .950 (24.13) max pin#1 dot flat .050 (1.27) .030 (0.76) .580 (14.73) .010 (0.25) typ .720 (18.29) max isdn s smd interface isolation transformers features designed for isolation between line card and terminal 2000vrms minimum isolation ? meets pulse waveform template of ccitt 1.430 ? industry standard smd package excellent longitudinal balance ? single or dual core package pm-is42 1:1 1:2 22 5/15 100 40/80 2.4 2.4/4.0 a pm-is43 1:1 1:1 22 5 100 40 2.4 2.4 a pm-is44 1:1.8 1:1.8 22 15 100 140 2.4 4.2 a pm-is45 1:2 1:2 22 15 100 80 2.4 4.0 a PM-IS46 1:2.5 1:2.5 22 30 100 110 2.4 5.8 a pm-is47 1:2 1:2 22 10 100 150 2.4 5.0 a part number turns ratio ( 2%) a b primary ocl (mh min.) secondary l l ( m m m m m h max.) pri-sec cw/w (pf max.) primary c p (pf max.) primary dcr (ohms max.) secondary dcr (ohms max.) package & schematic electrical specifications at 25 o c per core dual core package "a" note: primary:1 to 4 & 5 to 8 secondary: 16 to 13 & 12 to 9 m p pm-is4x yyww longitudinal balance: 10khz - 300khz: 60db minimum ratio is expressed as: primary : secondary 9 12 16 157 15 13 10 4 28 3 14 11 6 primary primary secondary secondary core a core b physical dimensions .... in inches (mm) recommended pcb layout dimension in inches, (mm) 16x.050 (1.27) 7x.100 (2.54) 16x.120 (3.05) .520 (13.21) 1 16 9 8 .760 (19.30) .700 (17.78)
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