defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960013B • Designed for use with multi-port 10Base-T transceivers which incorporate digital filters in the silicon and require 1:1 Tx and Rx transformer ratios, such as the AMD IMR series • Low cost, dual, 2-port design solution • Separate common mode chokes or integrated common mode choke designs available • Robust miniature SMT packaging, rated to 225ºC peak IR reflow temperature ELECTRICALS AT 25ºC Part No. S553-3873-19 Turns Ratio Insertion Loss (dB) Max 1-10MHz OCL (Inductance) µH Min Return Loss (dB) Min 5MHz-10MHz Crosstalk (dB) Min 5MHz-10MHz Hipot (Vrms) Min 1:1 -1.0 100 -16 -45 2000 SCHEMATIC MECHANICAL Specifications subject to change without notice. Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: [email protected] Website: http://www.belfuse.com defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960013B APPLICATION CIRCUIT APPLICATION NOTES • Bel has designed this part primarily for use with AMD eIMR (79C984A), eIMR+ (79C985) and IMR2 (79C988) multi-port PHY transceivers, which include digital filtering within the silicon. All parts contain high voltage isolation transformers and meet the requirements of IEEE 802.3 standards. Common mode chokes are not inclusive to the design of these parts and may not be necessary if good layout and proper grounding techniques are implemented. If information of recommendations for PCB layouts is needed, please contact Bel engineering. Separately packaged common mode chokes are available on data sheet 960046. • Bel's low profile, surface mount packaging is ideal for high speed pick and place machinery. Parts can be shipped on tape and reel for high speed placement. Construction processes have been implemented for thermal compatibility with high temperature IR reflow assembly processing. Post dipping of leads assist with PC board solderability. Each part is optically inspected to meet rigid coplanarity requirements. • Please refer to the Bel short form catalog for all of the recommended mating semiconductors that can be used with this part type. 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 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