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Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Variable Capacitor used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.
A canonical Variable Capacitor is characterized by the integration of Rotor Plates and Stator Plates. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum construction to support stable, high-cycle operation across diverse manufacturing scenarios.
A capacitor whose capacitance can be intentionally and repeatedly changed mechanically or electronically.
Technical details and manufacturing context for Variable Capacitor
Commonly used trade names and technical identifiers for Variable Capacitor.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric to 1 atm (not designed for pressure systems) |
| other spec: | Capacitance range: 1 pF to 1000 pF (typical), Voltage rating: 50V to 500V DC, Frequency range: up to 1 GHz |
| temperature: | -40°C to +125°C (typical for electronic variable capacitors) |
Verified manufacturers with capability to produce this product in China
✓ 93% Supplier Capability Match Found
Authentic performance reports from verified B2B procurement managers.
"The Variable Capacitor we sourced perfectly fits our Computer, Electronic and Optical Product Manufacturing production line requirements."
"Found 33+ suppliers for Variable Capacitor on CNFX, but this spec remains the most cost-effective."
"The technical documentation for this Variable Capacitor is very thorough, especially regarding technical reliability."
“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”
Variable capacitors are essential for tuning circuits, frequency selection in radios, impedance matching, and adjustable filtering in communication devices, test equipment, and optical systems.
Dielectric materials like ceramic offer stability and high dielectric strength, silicon provides miniaturization for microelectronics, while air/gap dielectrics enable precise mechanical adjustment with minimal loss.
Mechanical types with shafts and bearings require periodic cleaning to prevent contact oxidation, lubrication for smooth rotation, and inspection of plate alignment to maintain consistent capacitance curves.
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