---
title: "W5100 Without Transformers - Transformerless Ethernet Operation"
url: "https://maker.wiznet.io/forum/11771"
markdown_url: "https://maker.wiznet.io/forum/11771/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "otsuzi"
created: "2016-04-01T14:47:03+09:00"
last_activity: "2017-05-04T08:38:33+09:00"
language: "en"
views: 682
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W5100 Without Transformers - Transformerless Ethernet Operation

## Question

Asked by otsuzi on 2016-04-01 in Ethernet Chips.

Where I can find an application note with orientation/recommendation for ethernet application without transformers showing the capacitive coupling that is necessary.

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Source: https://maker.wiznet.io/forum/11771