High-Q Trimmer Capacitors for RF and Microwave
Tronser GmbH specializes in precision variable capacitors, high-Q trimmer capacitors, non-magnetic components and tuning elements for RF and microwave applications.
A product range designed for circuits where adjustable capacitance, mechanical stability, low losses and reliability are not optional notes at the bottom of the datasheet, but real requirements.
- Wide range of High-Q Trimmer Capacitors.
- Research, development and testing up to 26 GHz.
- In-house production with CNC machining, plating, tool shop and injection molding.
- Non-magnetic components for MRI and NMR applications.
- Quality system compliant with DIN EN ISO 9001:2015.

Tronser for RF circuits, microwave applications and professional instrumentation
Tronser components are designed for applications where fine capacitance adjustment must remain stable and repeatable over time. The range includes air trimmers, trimmers with special dielectrics, compact solutions, custom components and microwave tuning elements.
Welco supports the selection of the most suitable product based on capacitance range, operating frequency, mechanical constraints, voltage, mounting and availability.

RF
Components for filters, oscillators, matching circuits and equipment where tuning precision is essential.

Microwave
Tuning elements and tuning screws available in different geometries, dimensions and materials.

MRI and NMR
Non-magnetic components and custom machined parts for scientific and medical applications.

Custom
Special solutions for projects with non-standard mechanical, electrical or application constraints.
Main Tronser solutions
The Tronser range includes high-Q trimmer capacitors, variable capacitors, microwave solutions and non-magnetic components.


Air Tubular Trimmers
Air trimmers for precise adjustment and high-performance RF applications.
High-Q Air dielectric RF
Sapphire Trimmers
Compact solutions for circuits requiring stability, precision and low losses.
Compact Stable RF precision
Zirconia Trimmers
Trimmers with zirconia dielectric for technical applications with space constraints.
Zirconia Miniaturization Stability
PTFE Trimmers
PTFE dielectric solutions for circuits requiring electrical robustness.
PTFE High voltage Trimmer
Air Plate Trimmers
Air trimmers with high adjustment accuracy and mechanical stability.
Air plate Fine adjustment
FilmTrim
Trimmers with different dielectric options for professional electronic applications.
Film Variable capacitors
Non-Magnetic Components
Machined non-magnetic components for MRI, NMR and scientific applications.
MRI NMR Non magnetic
Microwave Tuning Elements
Microwave tuning elements and custom tuning screws for dedicated applications.
Microwave Custom TuningFrom technical requirement to correct selection
Selecting a trimmer capacitor is not just a matter of reading the pF value and calling it done. Frequency, Q, voltage, dielectric, footprint, mechanical interface, operating environment and supply continuity all matter.

Application analysis
Evaluation of capacitance range, operating frequency, voltage, mounting and dimensional constraints.
Product family selection
Identification of the Tronser series best aligned with required performance and availability.
Technical alternatives
Support in finding compatible options in case of obsolescence, lead time issues or special specifications.
Custom and special solutions
Management of dedicated requests for non-standard components, materials or configurations.
Where to consider Tronser
Tronser is suitable for projects where capacitive tuning must be precise, repeatable and stable over time.
- RF and microwave circuits requiring fine tuning.
- Filters, oscillators, matching networks and resonant circuits.
- Professional instrumentation and measurement systems.
- MRI, NMR and non-magnetic scientific systems.
- Custom projects with specific mechanical or material constraints.

DIN EN ISO 9001:2015
Tronser operates with a quality system compliant with DIN EN ISO 9001:2015.

Documented controls
Tests and controls are documented to ensure traceability and consistent quality.

Final inspection
The manufacturer states that 100% final inspection is performed before delivery.
Need support with a Tronser component?
Send specifications, operating frequency, capacitance range, mechanical constraints and indicative quantities. Welco helps you identify the most suitable solution.