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NOTE: Most of the above trimmer capacitors can be ordered as non-magnetic.

Every trimmer in this catalog can be set at a fixed value by Voltronics. This saves you the labor of setting the trimmer and can replace a fixed capacitor. If, for instance, stray capacitance changes frequency settings, minor fine adjustments of the timmer can be made easily. If any part of the circuit drifts with temperature or time, the trimmer can be tuned. This will save not only initial set-up time, but will allow tuning without changing fixed components. Voltronics trimmers are as stable as fixed capacitors and many are less expensive!

Ceramic Chip Trimmer Capacitors

　

Most Stable Over Time
• Lowest Capacitance Drift
• Up to 50% Higher Q
• Lowest Temperature Coefficient
• Usable to Over 1 GHz
　

• Board Washable
• Tape And Reel
• No Exposed Metal Mechanism Under Capacitor
• Easiest Vacuum Pickup Due to Full Ring Around Screw

Product Line		Actual Size Length x Width x Height	Capacitance Range		Circuit Attachment
			From	To
			pF
	JZ SERIES	0.177 x 0.126 x 0.059 in 4.5 x 3.2 x 1.5 mm	1.5 - 3.0	8.0 - 40.0	Surface-Mount
	JR SERIES	0.138 x 0.122 x 0.045 in 3.5 x 3.1 x 1.15 mm	1.5 - 3.0	8.0 - 40.0	Surface-Mount
	JV SERIES	0.126 x 0.098 x 0.049 in 3.2 x 2.5 x 1.25 mm	0.5 - 1.0	8.0 - 45.0	Surface-Mount
	JQ SERIES	0.106 x 0.087 x 0.04 in 2.7 x 2.2 x 1.0 mm	3.0 - 6.0	7.0 - 20.0	Surface-Mount
	JN SERIES	0.067 x 0.059 x 0.035 in 1.7 x 1.5 x 0.9 mm	0.55 - 1.0	3.0 - 8.0	Surface-Mount

Non-Magnetic Products

　

Voltronics has expanded its non-magnetic product line to support our customers designing NMR and MRI systems. Custom designs are available upon request.
	Variable Capacitors Extensive families of multiturn trimmer capacitors have been developed using air, glass, quartz, sapphire, and PTFE dielectrics for both low and high-voltage applications. Models can be specified with total capacitance as low as 1.2 pF or as high as 250 pF.	Chip Capacitors High-performance non-magnetic chip capacitors range in size from 0.110 x 0.110 in. to 0.38 x 0.38 in. and with capacitance values as low as 0.1 pF. High voltage ratings (to 7200 V) can be supplied.
	Inductors/Baluns Non-magnetic air-coil inductors and potted inductors are ideal for critical MRI system designs. In addition, Voltronics offers a variety of non-magnetic balanced-to-unbalanced transformers for challenging impedance-matching requirements.	Hardware Voltronics?experience in understanding high-purity metals with no measurable magnetism has also been applied to the production of a wide range of non-magnetic hardware.
	Disc Capacitors Designed specifically for demanding magnetic resonance applications, these disk capacitors are produced to ensure the highest performance with no magnetic-field perturbation.	Connectors Available as PC-mount plugs, straight or right-angle jacks, these non-magnetic SMB connectors provide outstanding electrical performance for magnetic resonance systems. The connectors can also be supplied as completely non-magnetic cable assemblies.
	Diodes For applications requiring non-magnetic diodes and diode switches, Voltronics offers an extensive lineup that includes PIN diodes and Schottky diodes.

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