Embed Code in Text field

I created Text field (plain text) in my content type and his purpose is to store some embed code
(e.g <iframe src="https://h5p.org/h5p/embed/612" width="1090" height="638" frameborder="0" allowfullscreen="allowfullscreen"></iframe><script src="https://h5p.org/sites/all/modules/h5p/library/js/h5p-resizer.js" charset="UTF-8"></script>).

On the page I get printed text code. Can I do something in node–my_content_type.tpl.php or field–field_embed.tpl.php to change output into html, without changing plain text into Filtered text?

Thanks

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Source: https://www.drupal.org/taxonomy/term/4/feed