corporate office bel fuse inc. 198 van vorst street, jersey city, nj 07302-4496 tel: 201-432-0463 fax: 201-432-9542 e-mail: belfuse@belfuse.com internet: http://www.belfuse.com far east office bel fuse ltd. 8f/8 luk hop street san po kong kowloon, hong kong tel: 852-2328-5515 fax: 852-2352-3706 european office bel fuse europe ltd. preston technology management centre marsh lane, preston pr1 8ud lancashire, u.k. tel: 44-1772-556601 fax: 44-1772-888366 defining a degree of excellence .400 (10.2) max .600 (15.3) max .340(8.64) max .675(17.2) max yyww 1 12 11 10 9 8 7 1 2 3 4 5 6 12 11 10 9 8 7 12 10 9 8 7 1 2 3 4 5 6 12 10 9 8 7 1 2 3 4 6 1 2 3 4 5 6 1 3 4 6 12 11 10 9 7 1 2 6 5 4 .004 12 7 .100(2.54) typ .030(0.76) typ .085(2.16) 6 .475 (12.1) max part number bel .040/.050 (1.01/1.27) .010/.020 (0.25/0.51) primary pins 12-10,4-6 12-10,4-6 12-10,4-6 12-10,4-6 12-10,4-6 1-3,4-6 electricals specifications @ 25 o c * extended temp. range models 1 1 2 4 5 6 drc sec (ohms max) 1.0 & 1.0 1.7 & 1.7 2.0 & 1.7 1.0 & 1.7 1.1 & 1.7 1.1 & 0.7 1.0 & 1.0 1.0 & 1.0 1.5 & 1.5 1.0 & 1.0 1.0 & 1.0 1.1 & 1.1 drc pri (ohms max) l l (uh max) part number sch 0.8 & 0.8 0.8 & 0.8 1.0 & 0.8 0.8 & 0.8 0.8 & 0.8 1.3 & 1.3 cw/w (pf max) 50 & 50 50 & 50 60 & 50 60 & 50 50 & 60 50 & 40 ocl 25 o c (mh min) 1.2 & 1.2 1.2 & 1.2 1.6 & 1.6 1.5 & 1.2 1.5 & 1.2 1.6 & 1.6 1ct:1ct & 1ct:1ct 1ct:2ct & 1ct:2ct 1ct:2ct & 1:1.36ct 1:1.15ct & 1ct:2ct 1:1:1.266 & 1:2ct 2:2ct & 2:1 turns ratio (pri:sec +/-5%) s553-6500-03 S553-6500-05 s553-6500-06 s553-6500-07 s553-6500-08 s553-6500-09 * extented temp. range is -40 c to +85 c at -40 dregee c, ocl is 600 uh min. for all low temp. models with the exception of s553-6500-09 which is 800 uh min.. all other parameters are specified at +25 degree c only. bel introduces a new isdn ti/cept/ isdn-pri transformer in a surface mount package dual surface mount package contains both transmit and receive transformers. models matched to leading transceiver chips. provide 1500 vrms isolation. t1/cept/isdn-pri transformers dual surface mount tm0002 t101
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