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.