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ALLIED COMPONENTS INTERNATIONAL949-356-1780 www.a lliedcom ponen ts.com RoHS 01/26/2015 Designed to meet IEEE802.3u Requirements All specifications subject to change without notice. AT3973I 1-1 1:1 1:1 350uH min 1500 Insertion Loss 0.1 ~ 100 MHz (dB Max) AT3973I Industrial Operating Temperature: -40ºC to +85ºC Maximum Reflow Temperature is 250ºC/-5ºC, 20~40 sec (Ref to IPC/JEDEC J-STD-020C Standard) Return Loss (MHz min) (Dimensions in mm) Electrical Specifications @ 25°C TX RX DCR Hi-Pot Turns Ratio Ethernet based LAN, WAN and other networking applications OCL @100KHz/0.1V with 8mA DC Bias (Vrms Min) (Ω max) 1.0 Part Number 0.5-30 40 50 60-80 -18dB -15.5dB -13.6dB -12dB A B DE SUGGESTED PCB PAD LAYOUT PAD-E PAD-A PAD-D PAD-B PAD-C Uint : mm/inch A=8.15/0.321 B=7.20/0.283 C=6.25/0.246 D=2.54/0.100 E=0.60/0.0236 F=9.90/0.400 G=6.1/0.240 H=0.60/0.023 I=0.25/0.010 J=0.25/0.010 PAD-A=5.08/0.200 PAD-B=12.0/0.472 PAD-C=2.54/0.100 PAD-D=1.02/0.040 C F G H I