1404-B: Difference between revisions
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* '''Stability:''' 20 parts per million per year | * '''Stability:''' 20 parts per million per year | ||
* '''Temperature Coefficient of Capacitance:''' 2 ±2 ppm/°C from -20°C to +65°C. | * '''Temperature Coefficient of Capacitance:''' 2 ±2 ppm/°C from -20°C to +65°C. | ||
* '''Dissipation Factor:'' less than .00005 at 1 kHz | * '''Dissipation Factor:''' less than .00005 at 1 kHz | ||
* '''Maximum Voltage:''' 750 volts | * '''Maximum Voltage:''' 750 volts | ||
* '''Terminals:''' two locking GR874 coaxial connectors | * '''Terminals:''' two locking GR874 coaxial connectors | ||
Latest revision as of 10:55, 8 August 2024
The General Radio 1404-B Reference Standard Capacitor were introduced in Catalog S (1965) and remained available through Catalog 1978.
The Type 1404-B capacitor is designed as primary reference standards of capacitance with which working standards can be compared. The capacitor plates are constructed of Invar and assembled in a sealed container with dry nitrogen under pressure slightly above atmospheric. This type of construction is less affected by external atmospheric conditions making increased stability. Each capacitor is shipped with a calibration certificate with specifications for that particular instrument.
Specifications
- Capacitance: 100 pF
- Stability: 20 parts per million per year
- Temperature Coefficient of Capacitance: 2 ±2 ppm/°C from -20°C to +65°C.
- Dissipation Factor: less than .00005 at 1 kHz
- Maximum Voltage: 750 volts
- Terminals: two locking GR874 coaxial connectors
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