HYSOL FP4401

FP4401 is a low flow, high purity liquid epoxy encapsulant. This material has a high glass transition temperature and low coefficient of thermal expansion which gives improved thermal cycling characteristics on ceramic. It is also suitable for use on other substrates. Performance in 85°/85% R.H. with bias and resistance to chlorinated cleaning solvents are excellent. Compared to silicone encapsulants, it provides equivalent electrical performance and enhanced mechanical protection. FP4401 is supplied as a frozen product which requires storage at –40°C to maximize shelf life.