HANA Special Chars (Charset / Collation)

I have an issue whith a VARCHAR field.

When I do an insert with special char:

insert into zteste values (1, 'Á1234');

I get this error:

[274]: inserted value too large for column: Á1234

That's is my table:

  ID - integer

  txt - varchar(5)

There are how to change the Collation/Charset of the table to solve this?

Thanks