Dielectric Laboratories is a global supplier of microwave and millimeter wave components for optical and wireless communications, military, medical, semiconductor, aerospace, and transportation markets. We are a manufacturer of High Q Multi-Layer capacitors (MLC) and Single-Layer capacitors (SLC), Resonators, Filters, Broadband DC blocks, Thin Film components, and Custom ceramic components.

In 2004, DLI acquired Voltronics Corporation, a world leader in precision variable capacitors.