Voltronics / Knowles S Series Small Sealed Glass Trimmers
Knowles Voltronics S Series Small Sealed Glass Trimmers are up to 40% shorter with 25% more range than other sealed standard glass RC trimmers. These embedded band glass trimmers are available in horizontal mount, vertical mount, and surface mount with a life of 10,000 cycles minimum. A non-rotating piston design provides linear tuning, high Q, and high self-resonant frequencies. The O-ring seal assures protection up to 40PSI against dust, moisture, flux, solder, and cleaning solvents. Knowles Voltronics S trimmers feature a 1.5pF to 40pF capacitance range, a 250VDC working voltage, and a -55°C to +125°C operating temperature range.
Features
- Available in horizontal mount, vertical mount, and surface mount
- Linear tuning with no reversals
- True high-frequency device with high Qs, low RF losses, low constant inductance, and high self-resonant frequencies
- Long life with 10,000 cycles minimum
- Superior seal because the screw head and O-ring do not move in and out
- Much smaller sealed MIL sizes
- Ability to provide extended metal or plastic shafts
Specifications
- 1.5pF to 40pF capacitance range
- 800Q minimum at 1MHz
- ±150ppm/°C temperature coefficient
- 106MΩ at +25°C and 105MΩ at +125°C insulation resistance
- 250VDC working voltage
- -55°C to +125°C operating temperature range
Quality Factor
Published: 2020-04-29
| Updated: 2025-10-29