"The password text box is a widget that can be used to provide a password for authentication. It must be placed on a page together with a login id text box and a sign-in button."

If you want to utilize character limit, you can use a regular text input box and select the option "show as password". This way, characters will be hidden while typing. Then, check with a microflow if the length is >= 12 characters. If it's more, display a validation message. Or simply limit the characters in the textbox itself, in which case you will no longer be able to write more than 12 characters.

Hey

You can limit characters in text areas by setting the max limit as below:

However if you want to use a text field, you can add a validation to the max characters in the field or use a piece of out of the box javascript code to achieve this.

Additionally have a look at this widget :

https://community.mendix.com/link/space/studio-pro/questions/89838

Hope this helps!