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 t407 tm0053 v.34 srf. mnt. modem transformers s574-1000-17 and s574-1000-18 suitable for modem speeds up to: reflects 600 ohm at pri with r load d.c. resistance, 20 o c, +/- 10%, pri d.c. resistance, 20 o c, +/- 10%, sec frequency response, 100 to 4000hz insertion loss at 1khz, 20 o c return loss vs 600 ohms at 1khz direct current dielectric test pri-sec, pri to core direct current turns ratio (pri-sec) 1khz, +/- 1% longitudinal balance 60 to 1000hz longitudinal balance 1000 to 4000hz total harmonic distortion 600hz @ -10dbm 4000 typical return loss versus 600 w "-18" "-17" 1000 frequency (hz) 50 40 30 20 10 0 200 return loss (db) 0.3 -0.5 -0.3 -0.1 0 0.1 0.5 "-17" "-18" 10 100 frequency (hz) 1000 4000 frequency response(db) typical frequency response electricals specifications -- ohms ohms ohms db db db -- vac -- -- db db db units all dimensions are in inches(mm). the dimension tolerance is +/- 0.01(0.25) unless otherwise specified. 0.420 (10.67) max 0.697(17.70) 0.697(17.70) 0.420 (10.67) max 0.73 (18.54) 0.050 (1.3) 0.100 (2.54) 0.080 (2.03) v.34 340 120 145 +/- 0.2 2.5 max 37 typ none 1250 none 1:1 70 min 60 min - 86 max part number s574-1000-17 s574-1000-18 100 hz -72 -59 ref -10 dbm -10 dbm 600 hz -93 -88 150 hz -80 -66 200 hz -83 -72 250 hz -86 -75 300 hz -89 -78 typical distortion figures (t.h.d.) 2 10 secondary primary 4 6 schematic d.c. part no. 10 6 4 0.700(17.78) max pin 2 0.550 (13.97) max mechanicals pin 2 10 6 0.550 (13.97) max 0.575(14.61) max bel d.c. part no. 4 suggested pc board layout s574-1000-18 s574-1000-17
|
