I've known IR for more years than I can count. At one time I worked for a computer company and we purchased power rectifiers from IR. They are an "old line company" and will do well once the enterprise companies start spending again.
You need to consider IR as a long term investment. I would check a stock chart and determine a good entry point.
I don't own any shares in the company simply due to the fact that I'm fully invested and IR isn't in my portfolio. However, I have been giving thought to picking up the stock.