Voltronics Corporation, a Knowles Capacitors product brand, is a world leader in the design and manufacture of multi-turn and half-turn trimmer capacitors. Voltronics’ trimmers include air, glass, sapphire, and PTFE dielectrics that can be used from 1 MHz to over 2 GHz and at voltages up to 20,000 VDC.
Voltronics Corporation was founded in 1963 with the concept of designing a non-rotation glass trimmer capacitor that could exceed the specifications of rotation models. This design proved successful and resulted in trimmers that can withstand high vibration environments, have screws that do not move in and out and have tuning linearity of less than ±1%. From glass dielectrics, Voltronics expanded this technology to include air, sapphire and PTFE materials.