for other values & custom designs, contact factory. specifications subject to change without notice. 15801 chemical lane, huntington beach, ca 92649-1595 tel: (714) 898-0960 ? fax: (714) 896-0971 rhombus industries inc. 27 100baset - 4/99 turns ocl l l dcr p c w/w part ratio min. max. max. max. isolation number + 3% ( m h ) ( m h ) ( w ) ( pf ) (v rms ) T-15200 1:2ct 350 1.0 0.5 14 1500 t-15201 2ct:1ct 350 1.0 1.0 10 1500 the above parts are avaiable in surface mount versions. add suffix "g". see data sheet for dimensions. designed to provide isolation and impedance matching for 4 twisted pairs in a 100 mbps transmission over utp-3 cable. designed for popular 100base-t4 transiever chips ieee 802.3 compatible fast rise times common mode choke available for improved emi performance 100 base-t4 transformers four transformers per unit electrical specifications at 25 o c T-15200 schematic diagram T-15200 schematic diagram 14 18 711 17 15 10 8 9 16 13 12 20 24 15 23 21 4 2 3 22 19 6 pri pri pri pri sec sec sec sec 14 18 711 17 15 10 8 9 16 13 12 20 24 15 23 21 4 2 3 22 19 6 pri pri pri pri sec sec sec sec T-15200 : designed for use with seeq 80c240p t-15201 : designed for use with cypress cy7c971 physical d imensions inches (mm) smd versions available on tape & reel 1.280 (32.51) max. .295 (7.49) max. .020 (0.51) typ. .120 (3.05) min. .100 (2.54) typ. .040 (1.02) typ. .018 (0.46) typ. .300 (7.62) .285 (7.24) max. .008 r (0.20) .365 (9.27) max. .010 (0.25) typ. turns ocl l l dcr p c w/w part ratio min. max. max. max. isolation number + 3% ( m h ) ( m h ) ( w ) ( pf ) (v rms ) f-1515 1 :1 36 0.2 0.35 15 500 electrical specifications at 25 o c impedance w (min.) 2000 @ 30 mhz 1500 @ 50 mhz 1000 @ 70 mhz 100 base-t4 common mode choke 10 20 40 60 80 100 1000 2000 3000 4000 frequency ( mhz ) 200 300 0 typical minimum impedance ( ohms ) .015 (0.38) typ. .505 (12.83) max. .016 (0.41) typ. .205 (5.21) max. .360 (9.14) .380 (9.65) .285 (7.24) max. .025 (0.64) typ. .050 (1.27) typ. .010 (0.25) typ. dimensions in inches (mm) f-1515 schematic diagram
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