The defender believes his side are in for a difficult fixture against Malky Mackay's men, who are only two points behind Michael Laudrup's side in the Premier League
The two clubs will meet for the first time in the Premier League having not played each other since their Championship clash in February 2011 where Cardiff ran out 1-0 winners following a goal from Craig Bellamy.
"It's going to be a tough one, especially away from home," Rangel told reporters.
"But hopefully the experience we've got in the Premier League will help us. It's a game we want to win, especially for the fans. They deserve three points.
"We know it's only three points but we know there's always emotions about these games and the fans are very excited about it.
"We're trying to keep cool because at the end of the day you can get too excited. We need to keep cool and try and win it."
Swansea sit seven places ahead of Cardiff on the table, but hold only a two-point advantage over Malky Mackay's men ahead of the fixture.
"To be fair they have done alright, especially in games where they didn't expect to win," Rangel continued.
"I think they've done okay, especially for a team that's just come up. They haven't had easy games.
"There' still a long way to go but so far they're looking good."