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TYPE H FILM CHARACTERISTICS
LOW POWER FACTOR - HIGH Q
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Type H plastic film used as the solid dielectric of a capacitor results in extremely low power factors. Coupled with a high possible potential gradient, type H meets a specific need. Type HC is an inexpensive capacitor which will handle very large currents of the AC or pulse type.
Temperature Range. -60°C to 75°C. Full nameplate ratings to 65°C. Derate to 80% nameplate voltage for operation at 75°C.
Capacitance Tolerance. Standard capacitance tolerance is plus or minus 10%, 5% and 2% available on special order.
Test Voltage is 200% DC nameplate voltage for one minute at 25°C.
Life. Design life of type H capacitors is 10,000 hours at 65°C. A suitable life test is the application of 120% DC nameplate voltage applied for 1,000 hours at 65°C ambient temperature. Compliance is indicated with less than two failures of a sample lot of twelve.
Impregnant. Mineral oil & silicone is the liquid dielectric.
Salt Spray. All outside surfaces are treated to successfully withstand a 50 hour salt spray. On request, 100 or 150 hour salt spray resistance may be obtained.
Immersion. All type H capacitors are hermetically sealed and designed to pass the immersion test of MIL-C-25D.
Temperature Coefficient. The temperature coefficient of type H film impregnated with silicone fluid is negative 800 PPM/ C.
Applications: Type H capacitors find their major applications in circuits which require low-loss, high voltage and high current carrying capacitors.
| Pulse Forming Networks |
Radio Frequency Bypass |
Audio Frequency Bypass |
Power Supply Filters |
| De-spiking Networks |
Radio Frequency Coupling |
Audio Frequency Coupling
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Resonant RF & Audio Circuits |
| Pulse Coupling Capacitors |
High Frequency Power Factor Correction
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There are two types of Plastic Film Capacitors:
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