defining a degree of excellence TOKEN RING TRANSFORMERS IMPEDANCE MATCHING AND ISOLATION TRANSFORMERS • Design for use in IEEE 802.5 token ring applications, 4 or 16 Mbps applications 960047A • Impedance match or isolation transformer applications • For use with either 150 ohm STP or 100 ohm UTP media • Single or dual designs, through-hole or surface mount packaging • 2000 Vrms isolation ELECTRICALS AT 25ºC Turns Ratio Inductance OCL (µH) Typical Coupling Capacitance CWW (pF) Max Leakage Inductance LL (µH) Max Pri/Sec (ohms) Max Schematic Package Style 1:1:0.816:0.816 1:1:0.816:0.816 1:1:1:1 1:1:1:1 1:1:2:2 1:1:2:2 1:1:0.816:0.816 1:1:1:1 1:1:2:2 1:1:2.45:2.45 1:1:1.22:1.22 1:1:2.44:2.44 125 125 125 125 125 125 100 125 125 +/- 20% 125 +/- 20% 250 125 10 10 10 10 10 10 10 15 10 10 20 20 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.50 0.50 0.40/0.40 0.40/0.40 0.40/0.40 0.40/0.40 0.40/0.80 0.40/0.80 0.20/0.20 0.20/0.20 0.20/0.40 0.40/0.85 0.40/0.50 0.40/0.98 A B A B A B A A A A A A Dual Single Dual Single Dual Single Dual Dual Dual Dual Dual Dual Part No. A553-1506-6E A553-1506-6K A553-5006-JE A553-5006-JK A553-5006-KE A553-5006-KK S553-1506-6F S553-5006-JF S553-5006-KF S553-5999-10 S553-5999-11 S553-5999-12 SCHEMATICS A B MECHANICALS Single Corporate Office Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302-4496 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: [email protected] Internet: http://www.belfuse.com Dual 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