ECS Inc. International was established in 1980 and has grown to become one of the most recognized and dependable manufacturers of frequency control and power management products in the world. The company’s global engineering and customer care centers support first-class customers and distribution channels around the world. Their talented team of professionals collaborate daily within a network
The 555-4009F is a red, quad-block Circuit Board Indicator (CBI) with an integrated resistor for 5V operation.