These Sprague-Goodman MICROWAVE SAPPHIRE PISTONCAP Trimmer Capacitors offer very high Q at UHF and microwave frequencies, featuring a sapphire dielectric and subminiature size. They are designed to meet MIL-C-14409D and provide precision high-resolution adjustment with excellent stability over temperature, frequency, and voltage. Available in various configurations and mounting styles, they are ideal for applications such as stable oscillators, frequency multipliers, filters, tuning cavities, and coupling.
| Model Series | Capacitance (pF) Min | Capacitance (pF) Max | Q min (250 MHz) | Operating Temperature | Rated Voltage | Dielectric Withstanding Voltage | Contact Resistance | Insulation Resistance | Torque (oz-in) | Torque (g-cm) |
| GU/GN (1R2) | 0.3 | 1.2 | 4000 | -55C to +125C | 500 VDC | 1000 VDC | 0.01 Ohms | 106 Megohms min at 500 VDC | 0.1 to 1.0 | 7.2 to 72 |
| GW/GN (2R5 to 8R0) | 0.4 | 8.0 | 3000 - 1000 | -55C to +125C | 500 VDC | 1000 VDC | 0.01 Ohms | 106 Megohms min at 500 VDC | 0.2 to 2.0 | 14.4 to 144 |