the world leader in the design of trimmer capacitors. voltronics corporation 100 ford road denville, new jersey 07834 phone: 973-586-8585 fax: 973-586-3404 email: info@voltronicscorp.com
"p" series - sealed sapphire trimmer capacitors the "p" line offers: -high q, low temperature coefficient, and internal seal -low self-inductance for use to 10 ghz -interchangeability with unsealed designs -long life, no measurable tuning noise voltronics "p" line of sapphire subminiature trimmer capacitors is a unique design. the trimmers have high q, zero temperature coefficient, and are internally o-ring sealed to keep out flux and cleaning fluid. yet, sizes are the same as the mil unsealed styles. the tuning screw does not move in and out, and rf current does not run along it. sapphire is ideal for precision trimmer capacitors. its dielectric constant does not change with frequency, and its loss constant is extremely stable, measuring below 0.0003 up to 10 ghz. sapphire is chemically inert, totally moisture resistant, and mechanically strong.
"p" series - sealed sapphire trimmer capacitors general specifications -d.c. working voltage: 500 -d.c. withstanding voltage: 1000 -seal: internal o-ring -operating temperature: -55c to +125c -mechanical shock: 100 g's 6 ms -vibration: 60 g's, 10-2000 hz -tuning torque: 0.2 to 2.0 inch ounces -insulation resistance: 10 5 megohms -temperature coefficient: 0 50 ppm/c (0 75 ppm/c on p8 size )
"p" series - sealed sapphire trimmer capacitors high frequency data* *this high frequency data was taken on a boonton model 34a resonant coaxial-line with the parts set at their maximum rated capacitance values. connections to the parts were made directly on the body of the capacitors.
"p" series - sealed sapphire trimmer capacitors high frequency data* *this high frequency data was taken on a boonton model 34a resonant coaxial-line with the parts set at their maximum rated capacitance values. connections to the parts were made directly on the body of the capacitors.
"p" series - sealed sapphire trimmer capacitors optional configurations stud mount add "n" to type designation (example: p5n) extended shaft add "e" to type designation (example: p8ae)
"p" series - sealed sapphire trimmer capacitors see below for capacitance range, minimum q and tolerances type fig. capacitance range (pf) q(min.) 250 mhz tolerances (where not specified) .016 from below to above a (max) b dia. c .005 d .010 e .010 f g h .005 p3a 1 0.6 2.5 4,000 .240 - .118 - - - - - p5a 1 0.6 4.5 3,000 .329 - .118 - - - - - p8a 1 0.8 8.0 1,500 .495 - .118 - - - - - p3d 2 0.6 2.5 4,000 .240 .190 .118 .100 - - - - p5d 2 0.6 4.5 3,000 .329 .190 .118 .150 - - - - p8d 2 0.8 8.0 1,500 .495 .190 .118 .230 - - - - p3b 3 0.6 2.5 4,000 .240 .140 .118 .082 .014 - - - p5b 3 0.6 4.5 3,000 .329 .140 .118 .130 .034 - - -
p8b 3 0.8 8.0 1,500 .495 .140 .118 .250 .036 - - - p3c 4 0.6 2.5 4,000 .240 .140 .118 .056 .018 - - .093 p5c 4 0.6 4.5 3,000 .329 .140 .118 .060 .060 - - .093 p8c 4 0.8 8.0 1,500 .495 .140 .118 .050 .148 - - .093 p3f 5 0.6 2.5 4,000 .240 .140 .118 .090 - .110 .025 .04 v6064 5 0.6 2.5 4,000 .240 .140 .118 .090 - .110 .025 .09 v6034 5 0.6 4.5 3,000 .329 .140 .118 .160 - .110 .025 .09 v6047 5 0.6 4.5 3,000 .329 .140 .118 .160 - .140 .100 .04 p5f 5 0.6 4.5 3,000 .329 .140 .118 .160 - .110 .025 .04 p8f 5 0.8 8.0 1,500 .495 .140 .118 .250 - .110 .025 .04 p3j 6 0.6 2.5 4,000 .240 .140 .118 .082 .014 .070 .160 - p5j 6 0.6 4.5 3,000 .329 .140 .118 .130 .034 .070 .160 - p8j 6 0.8 8.0 1,500 .495 .140 .118 .250 .036 .070 .160 - p3m 7 0.6 2.5 4,000 .240 - .118 - - - .125 - p5m 7 0.6 4.5 3,000 .329 - .118 - - - .160 - p8m 7 0.8 8.0 1,500 .495 - .118 - - - .230 - note: for diameter and length dimensions on figures 2-7, see figure 1 .
"p" series - sealed sapphire trimmer capacitors recommended tuning tool: tt-100 metal tipped part # tip a tip b capacitor series tt-100 .110x.018 - a, e, k ke dro, glass, nt - - .070x.12 p tt-200 .110x.018 - a, e, k ke, dro, glass, nt - - .032x.088 ---- tt-300 .060x.018 - a1, a3 - - .070x.012 p tt-400 .060x.018 - a1, a3 - - .036x.012 a2, a4 ceramic tipped non-magnetic part # tip a capacitor series tt-500 .07x.016 a1, a3, a, e, k, ke, dro tt-600 .10x.016 glass, nt tt-700 .050x.016 p tt-900 .038x.016 a2, a4 the tt-500 thru tt-900 tuning tools are ideal for continual use. they fit into the hand with the rotatable top fixed in the palm. the tip is made of high strength ceramic use this tool where metal tip affects tuning.
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