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Home > Technology List > Voltronics Ceramic Half-Turn SMT Variable Capacitors

Voltronics Ceramic Half-Turn SMT Variable Capacitors

Published time: 2019-12-19 00:17:01

Voltronics Ceramic Half-Turn SMT Variable Capacitors

Voltronics' Ceramic Half-turn SMT Variable Capacitors are small, inexpensive trimmers available in tape-and-reel format for use with automated assembly equipment. In spite of their small size, they can provide a generous amount of capacitance (up to 100 pF) for high-frequency applications. Used for applications that require adjustable capacitance in a miniature, surface-mountable package at low cost, the Voltronics Ceramic Half-turn SMT Variable Capacitors provide enough capacitance range to fine-tune filter center frequencies and correct for oscillator drift. The quality factor (Q) of these trimmers is about 1500 at 1 MHz. The temperature coefficient is typically 0 to -750 ppm/°C while capacitance drift ranges from ± 1% to ±5%. These trimmers are generally rated for maximum DC withstanding voltage of about 220 V.

Voltronics Corporation, a Dover Company, 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.

 

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