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DATA SHEET
UM MODEL NO.: UT12118 SPECIFICATION FAST ETHERNET 10BASE-T/100BASE-TX TRANSFORMER MODULES REV. B5 1/1 05/31 ELECTRICAL SPECIFICATIONS @250 C :
Inductance (uH MIN) Idc=8mA 350 Turn Ratio 15.75Hz 1V 1CT:1CT Insertion Loss (dB MAX) 0.1-100MHz -1.0 2-30 MHz -18 Return Loss (dB MAX) 40MHz -14.4 50MHz -13.1 60-80MHz -12 1KHz -55 Crosstalk (dB MIN) 30MHz -45 60MHz -40 100MHz -33 Diff. To Com. Mode Rej. (dB MIN) Hi-pot (Vrms MIN)
0.5mAmax.2 SEC.
1-60 MHz 60-200MHz LEAKAGE CURRENT -37 -25 1500
Operating temperature is 0° C to 70° C.
DIMENSIONS & SCHEMATIC :
1.127 Max 28.62 Max
40 21
24.13
0.472 12.00 0.640 Max 16.26 Max
12.18
UT12118
0.050(TYP) 1.27
1 20
1.27
0.96
0.018 0.46
SUGGESTED PAD LAYOUT
Date Code
0.218 5.55
XXXXG
0.013 0.345
.XXX=±.010 .XX=±.254
17.
UT12118 Datasheet
