RoHS Single Port Isolation Transformer AT3974 10/100 Base-T for Ethernet Applications Standard Operating Temperature range: -0ºC to +70ºC Maximum reflow temperature: 250ºC/-5ºC for 20-40 seconds (Refer to IPC/JEDEC J-STD-02C Standard) Electrical Specificat ions @25oC 1:1 98 (1-3) TO (16-4) (6-8) TO (11-9) 42 (1-3), (16-14) Isolation Voltage (Vrms MIN) (6-8), (11-9) (15-16), (16-14) (10-11), (10-9) 0.6 0.6 0.20 12 8 DC Resistance @ 10KHz, 20mV (Ω Max) (6-8), (11-9 short) 0.30 15- (16-14) ( 11 - 9 ) 70 (1-3) 1:2 Leakage Inductance @ 100KHz ,20mV (uH Max) (1-3), (16-14 short) CW/W @ 100KHz, 20mV (pF max) LP @ 100KHz , 20mV ( uH min ) Turn Ratio @ 10KHz, 20mV (±2%) (1-3) TO (16-4) (6-8) TO (11-9) 0.6 1500 0.6 All specifications subject to change without notice. MECHANICAL PAD A Uint : mm/inch A=12.80/0.504 PAD B B=6.80/0.268 C=6.20 max/0.244 max PAD C B PAD D D=8.89/0.350 E=1.27/0.050 PAD E SUGGESTED PCB PAD LAYOUT F=0.25/0.010 G=9.40/0.370 H=0.25/0.010 I=0.90/0.035 H C F I E 0~8゜ PDA-A=9.53/0.375 PDA-B=1.27/0.050 PDA-C=10.50/0.413 PDA-D=1.70/0.067 PDA-E=0.76/0.030 G D 16 SCHEMATICS 1 1CT:1CT 16 2 3 6 1CT:2CT 14 15 11 7 9 10 8 949-356-1780 ALLIED COMPONENTS INTERNATIONAL 03/26/2014 15 www.alliedcomponents.com