RF Matching Network
View system integration details
This page explains how Variable Capacitor is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A capacitor whose capacitance can be intentionally and repeatedly changed mechanically or electronically.
Technical details and manufacturing context for Variable Capacitor
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Capacitance Range | 1–100 pF | Typical range for air-gap variable capacitors |
| Capacitance Tolerance | ±5 % | At nominal capacitance |
| Rated Voltage | 100–500 V DC | Maximum working voltage |
| Insulation Resistance | ≥10 GΩ | At 100 V DC |
| Temperature Coefficient | ±50 ppm/°C | Over -25 to +85 °C |
| Operating Temperature Range | -25–85 °C | Extended range available on request |
| Humidity Range | 0–95 % RH | Non-condensing |
| Ingress Protection | IP54–IP65 | Sealed versions for harsh environmentsIEC 60529 |
| Dielectric Material | Air | Air gap; other dielectrics on request |
| Rotor Torque | 0.05–0.5 N·m | For manual adjustment |
| Life Expectancy | 10000 cycles | Mechanical rotations |
| Weight | 10–50 g | Depends on size and material |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
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) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The typical capacitance range for air-gap variable capacitors is 1–100 pF, as listed in the directory reference. However, this range can vary depending on the specific model and application, so it is essential to confirm the exact range with the manufacturer.
A mechanical variable capacitor adjusts capacitance by rotating one set of plates to change the overlap area between the plates. This changes the effective plate area, thereby altering the capacitance value.
The rated voltage is listed as 100–500 V DC maximum working voltage. This is a reference range; the actual rated voltage for a specific model should be verified with the supplier.
The life expectancy is listed as 10,000 mechanical rotations for manual adjustment. This is a reference value and may vary based on operating conditions and model. Confirm with the manufacturer for your application.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
Compare manufacturer profiles with relevant product and process capability.