MIL-PRF-1/1055F
TABLE I. Testing and inspection - Continued.
Limits
Unit
Inspection
Method
Notes
Conditions
Symbol
Min
Max
Conformance
inspection, part 3
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Group C; t = 500 hours;
Life test
pulsed oscillation
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Life-test end point:
ĆPo
%
25
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Pulsed oscillation
Periodic-check tests
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11/ 18/
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Pressure = 250 mmHg
1002
Barometric pressure
(max); voltage = 2,000
reduced (1)
V ac; TA = 30°C ± 10°C
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Pressure = 20 mmHg
1002
11/ 18/
Barometric pressure
(max); voltage = 500 V
reduced (2)
ac; TA = 30°C ± 10°C
mV dc
100
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Ep
Ebb = 300 V dc;
1031
17/
High-frequency
Ec/lb = 10 mA dc;
vibration
Rp = 10,000 ohms; use
socket in accordance
with Drawing No. 261-
JAN 21/
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1041
Shock
11/
No voltages; Accel
= 400 G peak (min);
0.5 ms duration (min);
use socket in accor-
dance with Drawing No.
261-JAN 21/
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Shock-test end points:
µA dc
-0.6
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lc
1266
Total grid current
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9/ 17/
Torque
No voltages
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Torque-test end
points:
µA dc
-0.6
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lc
1266
Total grid current
mA
960
840
lf
1301
Heater current
See footnotes at top of next page.
4
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