October 20, 2009 SM79289 10/100 Base–TX Transformer Designed to meet IEEE 802.3 and ANSI X3.263 Standards, including 350uH OCL with 8mA bias Compatible with Broadcom, ICS, Intel, Micrel (Kendin), Lucent, National Semiconductor and TDK Transceivers Operating temperature: -40°C to 85°C Electrical specifications @ 25°C Turn Ratio (+/-5%) Insertion Loss ( dB Max) Differential to Common Mode Rejection (dB Min.) Return Loss (dB Typ.) TX TR 0.1-100MHz 30MHz 60MHz 80MHz 1:1 1:1 -1.1 -20 -14 -11.5 30MHz 50MHz 100MHz -42 -37 -33 Cross-talk (dB Typ.) Hipot 30MHz 60MHz 100MHz -45 -40 -35 1500Vrms Mechanical Dimensions and Schematic All dimensions are in inches/millimeters Unless specified otherwise the tolerance is ±0.01in/±0.25mm DATATRONIC: 28151 Highway 74, Romoland, CA 92585 Tel 951-928-7700, FAX 951-928-7701 Email: [email protected] 499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290 All specifications are subject to change without notice.