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CERAMIC DIELECTRIC TRIMMER CAPACITORS
Engineering Bulletin SG-305
Specification Notes
- Parts are 100% tested for capacitance range, dielectric withstanding voltage, insulation resistance, and torque.
- Capacitance range specified is that which is guaranteed, and is measured at 1 MHz and 25°C.
- For soldering SURFTRIM® surface mounting models, pre-heat at 140°C 10°C for 2 minutes maximum, and reflow solder at 240°C ±5°C for 20 seconds maximum.
- For soldering printed circuit board mounting models, solder at 260°C 10°C for 5 seconds maximum, except 3 seconds maximum for GKH and GKX series.
- Q factor is measured at maximum rated capacitance and at room temperature. Frequency of measurement is as listed for each model.
- Dielectric strength is measured at maximum rated capacitance and room temperature, with test voltage as listed for each model applied for 5 seconds.
- Insulation resistance is measured at maximum rated capacitance and room temperature and at rated voltage, unless otherwise specified.
- Temperature coefficient of capacitance (TCC) is measured at 100 kHz or 1 MHz, over a temperature range of -20°C to +70°C with capacitor set at maximum rated capacitance.
- Axial load during tuning should not exceed 250 grams.
- Capacitors should not be operated outside of rated capacitance range and working voltage.
- Angular orientation of adjusting slot is random.
Engineering Bulletin SG-305 Contents
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