PAD-5009H is a high-density printed electronic circuit board manufactured by Russell. It is designed primarily for applications such as industrial communications, automotive electronics, and home appliances. The board is constructed using two layers of SMT (surface mount technology) components, one layer of strata-green HTCC (High-Temperature Co-fired Ceramic) substrate, and one layer of epoxy resin. It is designed to provide optimal signal integrity, high speed performance, and enhanced noise suppression. The board is available in various sizes and has an operating temperature of -40°C to +105°C.