---
title: "does the W5100S heat pad of QFN48 package connect to GND?"
url: "https://maker.wiznet.io/forum/13095"
markdown_url: "https://maker.wiznet.io/forum/13095/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "infoic"
created: "2018-10-26T09:11:27+09:00"
last_activity: "2018-11-08T00:26:19+09:00"
language: "en"
views: 630
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# does the W5100S heat pad of QFN48 package connect to GND?

## Question

Asked by infoic on 2018-10-26 in Ethernet Chips.

Hi, I am the first in W5100S.
I can not find any information of heat pad connection in QFN48 package.
The heat pad can be connected to GND?

## Replies

### Reply 1 by scott, 2018-11-08

Hi infoic

Yes, You can be connect pin 49 to GND.

Thank you.

Scott

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Source: https://maker.wiznet.io/forum/13095