10 BASE-T, SMD ETHERNET TRANSFORMER P/N:TS6121B DATA SHEET A. CHARACTERISTICS DESCRIPTION: 1. 16 PIN SMD SURFACE MOUNT PACKAGE. 2. DUAL CHANNEL LOW COST. 3. OPERATING TEMPERATURE RANGE: 0°C TO +70°C B. ELECTRICAL SPECIFICATIONS: (@ 25° C) 1.TURNS RATIO: TX (16-14:1-3) = 1.25CT: 1 CT, RX (6-8:11-9) = 1CT: 1CT ±5% 2.PRIMARY OCL (TX & RX): 350 uH MIN@ 100 KHz/0.1 Vrms, 8mA DC 3. INTERWINDING CAPACITANCE CW/W: 25 pF MAX 4.LEAKAGE INDUCTANCE: 0.5 uH MAX 5.DC RESISTANCE PR1 (RX & TX): 0.9 OHM MAX 6. Hi-POT ISOLATION: 1500Vrms MIN @ 0.5 mA 7. CROSSTALK (0.1-100MHz): -38dB MIN 8. RETURN LOSS (dB Min): 0.5-30 MHz 40MHz 50MHz 60-80MHz -18 -15.5 -13.6 -12 9. CMRR (0.1-100 MHz): -40 dB Min 10.INSERTION LOSS (1MHz~100MHz): -1.15dB Max C.SCHEMATIC & DIMENSIONS & MARKING (UNIT mm): Date: April 21-2000 Pre by:WuQingli Rev.: X.0