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 unique 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

Performance Graph - Voltronics / Knowles S Series Small Sealed Glass Trimmers

Voltronics / Knowles S Series Small Sealed Glass Trimmers