Bothhandusa.com 40 PIN SMD ETHERNET 10/100 BASE QUAD PORT TRANSFORMER P/N: 40ST1045 DATA SHEET Feature ! ! ! ! Meets all IEEE802.3 standards. Quad, four-port designs provide excellent EMI and Common mode noise suppression. Operating temperature range : 0℃ to +70℃. Storage temperature range: -25℃ to +125℃. Electrical Specifications @ 25°C Part Number 40ST1045 Turns Ratio OCL (uH Min) Cross talk (±5%) @ 100KHz/0.1V (dB Min) HI-POT (Vrms) TX RX with 8mA/DC Bias 0.3-60MHz 60-100MHz 1.23CT:1CT 1:1 350 -40 -35 1500 Continue Part Insertion Loss (dB Max) Return Loss DCMR (dB Min) (dB Min) Number 40ST1045 0.3–100MHz 0.3-30MHz 30-60MHz 60-80MHz 60MHz 100MHz 200MHz -1.15 -16 -12 -10 -37 -28 -25 Schematic Mechanical 462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434