This post came from QnA of WIZnet website
We are evaluating the WIZ120SR-EVB so that we can integrate the WIZ120SR module into our product. So far we have two questions:
- We cannot find L1 BEAD 120R on the WIZ120SR-EVB motherboard? How are the earth and ground planes connected on this board?
- Does L1 have an impedance of 120R at 100MHz?
- Does L1 have resistance below 1R at DC? I would expect around 0.2R
- Are there any alternatives from other manufacturers for the RD1-125BAG1A or RB1-125BAG1A?