SMD Chip Trimmers Capacitors

Excellent temperature resistance, high volume/capacitance ratio, electrical properties and reliability make Exxelia's ceramic capacitors ideal for a wide range of fields of application including medical implants, aircraft flight controls, switched-mode power supply in harsh environments, core samplers for petroleum exploration, and space vehicles. Exxelia also offers Hyper Frequency ceramic capacitors with optimized size and very low ESR. 

These HiQ capacitors offer excellent performance levels for RF applications requiring functional reliability. Typically these applications include civil and military telecommunications (cellular base station equipment, wireless broadband service, Point to-Point or Multipoint radios, radio broadcasting equipment), and MRI coils.

Ceramic chips are created with binders and solvents added to a specified ceramic powder. The slurry created is dried, forming a sheet or tape of ceramic material. Metal powder is mixed with solvents and additional ceramic material to create a liquid electrode. The liquid is then printed onto the ceramic layer. Layers of the ceramic sheets are stacked and laminated to form a solid structure.

The solid structure is cut into the desired size. Once cutting is complete, the assembly must be kiln fired. The temperature used in the firing process is critical in determining the capacitor’s characteristics. The process is similar for disc and chip styles. Disc capacitors use long leads to mount through circuit boards. Chips use surface mount technology.

A trimmer capacitor is a variable capacitor designed for precise adjustment of capacitance in electronic circuits. It is typically used in RF applications such as oscillators, filters, impedance matching, and crystal trimming, where fine tuning is required to optimize performance.

Exxelia trimmer capacitors offer high stability over time, low temperature coefficient, and minimal capacitance drift. They also feature a high Q factor, ensuring low energy losses and excellent performance in high-frequency applications. Many models include multi-turn adjustment for high resolution tuning and a self-locking mechanism for reliable settings.

Exxelia offers a wide range of trimmer capacitors, including air dielectric, sapphire dielectric (GHz range), non-magnetic versions, high-voltage models, and SMD chip trimmers. These different technologies are designed to meet various requirements such as high frequency performance, compact integration, or operation in harsh and sensitive environments.

Depending on the series, Exxelia trimmer capacitors can operate at frequencies up to several GHz and support working voltages from 250 VDC up to 5000 VDC. Sapphire-based models provide very high self-resonant frequency and excellent Q performance, making them suitable for demanding RF and microwave applications.

Yes, many Exxelia trimmer capacitors are designed to withstand harsh conditions, including vibration, shock, and extreme temperatures (typically from -55°C to +125°C). Non-magnetic versions are available for applications such as MRI and other sensitive environments, while hermetic and sealed models provide resistance to moisture, dust, and cleaning processes.