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I am designing USB2.0 hardware input but i don't have enough space on my PCB area. I searched many site but I cant find any information about D+ D- data lines power consumption. I am using 15R termination resistor. 0402 package power is enough for this? or how can I calculate the power value of the resistors.

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  • \$\begingroup\$ Not sure how to calculate the exact power rating needed, but I've used 0402 in similar usages without any issues. \$\endgroup\$
    – Klas-Kenny
    Mar 22, 2022 at 12:24
  • \$\begingroup\$ Hi @Klas-Kenny thank you for information :) \$\endgroup\$
    – mtoprak
    Mar 22, 2022 at 12:30
  • \$\begingroup\$ Take a look here: electronics.stackexchange.com/questions/84580/… \$\endgroup\$ Mar 22, 2022 at 14:04
  • \$\begingroup\$ If you are designing USB2.0 Full-speed interface, the lines are not terminated (actual termination is 15k), so the dissipated power is rather small. If you are designing for High-Speed mode, the 15R will likely kill the entire functionality of your interface. \$\endgroup\$ Mar 27, 2022 at 5:38

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