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of items available for this product line and it gives
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 The type OF capacitors are an improved plastic dielectric
capacitor impregnated with a highly purified and inhibited
Mineral Oil. It is hermetically sealed, rated for operation
at 85°C at full nameplate rating, and will withstand most
environmental and electrical specifications in general use.
Size is very small due to the nature of the dielectric used,
and the particular attention to processing. They are designed
to pass the tests and exceed the requirements of MIL-C-25D
except for high altitude flashover. VIBRATION & SHOCK
MIL-C-25D consult factory for recommended mounting.
Temperature Range -55°C to 85°C with nameplate
voltage applied. Derate to 60% nameplate voltage for operation
at 105°C. Non-operating temperature range -65°C to 110°C,
also available.
Test Voltage. through 20KV rating, 200%;
above 20KV rating, 150% of nameplate voltage. Capacitors charged
for 1 minutes.
Capacitance Tolerance. Standard capacitance
tolerance is plus/minus 10%. Also available in ± 5% and ±
2% tolerance. Standard tolerances not marked.
Life. Type OF capacitors are designed for
continuous operation at 85°C with nameplate voltage applied.
A suitable test to indicate compliance is operation for 250
hours at 85°C with 140% nameplate applied. Compliance is indicated
by not more than one failure in a sample lot of 12.
Mounting Position. Any.
Altitude. Type OF capacitors are designed
for operation at barometric pressures greater than 20 inches
of mercury.
Ripple. The peak ripple voltage plus the
DC voltage should not exceed the nameplate voltage. Acceptable
peak to peak ripple voltage in percent of nameplate voltage
follows.
| Frequency |
Peak
to Peak |
Frequency
|
Peak
to Peak |
| CPS |
Ripple
Voltage % |
CPS |
Ripple
Voltage % |
| 60 |
25 |
400 |
5 |
| 120 |
20 |
1000 |
3 |
Dielectric Resistance is indicated by the
curve R vs. T. This curve expresses limits with nameplate
voltage applied and 2 minute electrification time. Limitations
100³ megohms x mfd. or 100³ megohms whichever is less at room
temperature.
Terminals are 8-32 x 3/8" long for diameters
of 3/4" or greater. Smaller diameters are supplied with #18
tinned copper axial pigtails. Other size studs, pigtails and
solder lugs are available.
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