bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com high frequency magnetics ?2002 bel fuse inc. specifications subject to change without notice. 04.02 TM02130 page 1 ds3/e3/sts-1 transformers schematics electrical specifications at 25 c s554-6500-25 ? optimized for line transceivers operating at e3, ds3 or sts-1 rates: 34.368 mb/s, 44.736 mb/s, 51.84 mb/s ? s554-6500-25 and s554-6500-26 are surface mount, industrial temperature replacements for s554-3184-00 and s554-3184-02 transformers respectively ? meet itu-t g.703 return loss from -40 to +85 c from 860 khz to 51.55 mhz ? ul 1950 approved: file number e150991 ? operating temperature range -40 to +85c ? meets iec 695, 2-2 flammability requirements ? pwb process capability: standard printed wiring board assembly techniques, total-immersion cleaning ? reliability testing: shock, vibration, temperature cycling, temperature - humidity - bias ? interwinding breakdown voltage: 1500 vrms min 1. terminated in 75 w for 1 : 1 ratio and 300 w for 1 : 2 ratio s554-6500-26 s554-6500-30 r e b m u n t r a p o i t a r s n r u t % 2 y r a m i r p e c n a t c u d n i z h k 0 0 1 t a e g a k a e l e c n a t c u d n i z h m 1 t a e c n a t i c a p a c w / w c z h m 2 7 . 1 t a s s o l n r u t e r 5 7 w w w w w n o i t a c i l p p a 1 c e s : i r p c 5 2 n i m h c 0 4 - n i m h x a m h x a m f p c 5 2 p y t b d c 5 8 + o t 0 4 - n i m b d 5 2 - 0 0 5 6 - 4 5 5 s1 : 10 80 49 0 . 00 15 28 1 6 2 - 0 0 5 6 - 4 5 5 st c 2 : 10 80 49 0 . 00 15 28 1 0 3 - 0 0 5 6 - 4 5 5 st c 1 : t c 10 80 40 1 . 00 15 28 1 4 6 1 3 primary second ary 1 : 1 4 6 1 3 primary second ary 1 : 2ct 2 4 6 1 3 primary second ary 1 ct : 1 ct 2 5
corporate bel fuse inc. 206 van vorst street jersey city, nj 07302 tel 201-432-0463 fax 201-432-9542 www.belfuse.com far east bel fuse ltd. 8f / 8 luk hop street san po kong kowloon, hong kong tel 852-2328-5515 fax 852-2352-3706 www.belfuse.com europe bel fuse europe ltd. preston technology management centre marsh lane, suite g7, preston lancashire, pr1 8ud, u.k. tel 44-1772-556601 fax 44-1772-888366 www.belfuse.com high frequency magnetics ?2002 bel fuse inc. specifications subject to change without notice. 04.02 TM02130 page 2 ds3/e3/sts-1 transformers mechanical s554-6500-25 s554-6500-26 s554-6500-30 tape and reel packaging 16 mm wide by 12 mm pitch; 13 inch od, 4 inch id 500 modules per reel, maximum meets ansi/eia 481-2 carrier tape standards - jedec so package 0.300 [7.62] max 0.3 5 0 [ 8 . 89 ] 0.37 5 [ 9 . 5 2] 0.2 85 [7.2 4 ] max 0.0 1 8 + 0.002 [0. 4 6 + 0.0 5 ] 0. 1 00 [2. 5 4 ] suggested pcb p a d l a yout 0. 4 2 5 [ 1 0. 8 0] 0.070 [ 1 .7 8 ] 0.030 [0.76] 0. 1 00 [2. 5 4 ] 0.00 8 - 0.0 1 2 [0.20 - 0.30] 0.03 5 [0. 89 ] 4 0.200 [ 5 .0 8 ] 0.22 5 [ 5 .73] max 0.003 [0.0 8 ] m in 0.00 4 [0. 1 0] d i m e n s i o n s a r e in in ch es [m i ll i m ete r s ]. st a n d a r d d i m e n s i o n to l e r a n c e i s 0.00 5 [0. 1 3] u n l ess ot h e rw i se n oted .
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