Super Power Transmitter Capacitors
UHF/RF High Q Ceramic Capacitors (NP0 TC)
7676C (.760” x .760”)
Performance
Item
Quality Factor (Q)
Specifications
No less than 1000pF, Q value more than 2000, Test frequency 1MHz;
More than 1000pF, Q value more than 2000, Test frequency 1KHz;
Test Voltage: 500V
Megohms min. @ +25℃ at rated WVDC.
4
Megohms min. @ +125℃ at rated WVDC.
10
10
5
See Rated Voltage Table.
250% of Voltage for 5 seconds, Rated Voltage
≦500VDC
150% of Voltage for 5 seconds, 500VDC < Rated Voltage
≦1250VDC
120% of Voltage for 5 seconds, Rated Voltage >1250VDC
-55℃ to +125℃
0±30ppm/℃
±0.02%
or
±0.02pF,
whichever is greater.
None
Insulation Resistance (IR)
Rated Voltage
Dielectric Withstanding Voltage (DWV)
Operating Temperature Range
Temperature coefficient (TC)
Capacitance Drift
Piezoelectric Effects
Capacitors are designed and manufactured to meet the requirements of MIL-PRF-55681 and MIL-PRF-123.
Environmental Tests
Item
Specifications
DWV: the initial value
IR: Shall not be less than 30%
of the initial value.
Capacitance change:
no more than 0.5% or 0.5 pF,
whichever is greater.
Method
MIL-STD-202, Method 107, Condition A.
At the maximum rated temperature(-55℃ and 125℃) stay 30min,The time of
removing shall not be more than 3 minutes. Perform the five cycles.
Thermal
shock
Moisture
resistance
DWV: the initial value
IR: the initial value
Capacitance change:
no more than 0.3% or 0.3pF,
whichever is greater.
IR: Shall not be less than 30%
of the initial value.
Capacitance change:
no more than 2.0% or 0.5 pF,
whichever is greater.
Microstrip：more than 20 N;
Lead wire: more than 10 N.
MIL-STD-202, Method 106.
MIL-STD-202, Method 103, Condition A,
With 1.5 Volts D.C. applied while subjected to an environment of 85℃ with
85% relative humidity for 240 hours minimum.
Humidity
（steady
state）
Life
MIL-STD-202, Method 108, for 2000 hours, at 125℃,
200% of Voltage for Capacitors, Rated Voltage
≦500VDC;
120% of Voltage for Capacitors, 500VDC < Rated Voltage
≦
1250VDC;
100% of Voltage for Capacitors, Rated Voltage >1250VDC.
Terminal
Strength
MIL-STD-202, Method 211.
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