Bothhandusa.com 40 PIN SMD ETHERNET 10/100 BASE QUAD PORT TRANSFORMER P/N: 40ST1053-F LF DATA SHEET Feature IEEE 802.3 Ethernet compatible, 100 BASE-TX Surface mountable. Design for multi-port repeater and Ethernet switching Hub application. Lead free for external pins. Meet “ HAST” requirement. Operating temperature range : 0℃ to +70℃. Storage temperature range: -25℃ to +125℃. Electrical Specifications @ 25°C Part Turns Ratio OCL(uH Min) (±5%) @100KHz/0.1V Number 40ST1053-F LF TX RX 1CT:1CT 1:1 with 8mA DC Bias Rise Time Insertion Loss HI-POT (nS Typ) (dB Max) (Vrms) 0.3–100MHz 350 2.5 -1.15 1500 Continue Part Number Return Loss Cross talk DCMR (dB Min) (dB Min) (dB Min) 0.3-30MHz 30-60MHz 60-80MHz 0.3-60MHz 60-100MHz 60MHz 100 MHz 200 MHz -16 -12 -10 -40 -35 -37 -28 -25 40ST1053-F LF Schematic Mechanical 462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434