rhombus transformers & magnetic products industries inc. 15801 chemical lane, huntington beach, ca 92649 phone: (714) 898-0960 fax: (714) 896-0971 www.rhombus-ind.com parameter units (1) inductance 85.0 min. m h (1) leakage inductance 0.25 max. m h (1) interwinding capacitance 12 max. pf primary dc resistance 0.30 max. w isolation (hi-pot) 500 min. v rms srf (ref.) 20 mhz insulation resistance 10k min. m w power rating 250 mw crosstalk 60 db @ 5 mhz nominal 50 db @ 10 mhz nominal longitudinal conversion loss 0 - 300khz 56 db min. 300 khz - 500khz 52 db min. 500 khz - 1mhz 46 db min. 1mhz - 5 mhz 36 db min. operating temperature range -40 o c to +85 o c storage temperature range -55 o c to +125 o c 6/30/97 high frequency data line filter 3 coils 6 data lines physical dimensions in inches (mm) schematic diagram F-137 turns ratio 1:1 + 0% current rating: 100ma 1 tested at 100khz and 100 mv rms
rhombus transformers & magnetic products industries inc. 15801 chemical lane, huntington beach, ca 92649 phone: (714) 898-0960 fax: (714) 896-0971 www.rhombus-ind.com 7/29/97 high frequency data line filter: p/n F-137 crosstalk ( db ) - 40 frequency 10 mhz 1 mhz - 50 - 60 - 70 - 80 1000 2000 frequency ( w ) impedance 500 mhz 1 mhz 1500 3000 3500 2500 500 impedance crosstalk
rhombus transformers & magnetic products industries inc. 15801 chemical lane, huntington beach, ca 92649 phone: (714) 898-0960 fax: (714) 896-0971 www.rhombus-ind.com d.u.t = f-129g d.u.t = f-129g 20 log e l /e tr resistors matched to within 0.03% r1 + r2 = 67.5 w r3 + r4 = 67.5 w longitudinal conversion loss 20 log v/e crosstalk sine wave 2v rms up to 10mhz r s = 50 w r l = 135 w d.u.t. = F-137 d.u.t. = F-137
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