MIL-C-62F
1.2.1.3 Capacitance. The nominal capacitance value expressed in microfarads (F) is identified by a three-digit
number. When the nominal capacitance is 10 F or greater, the first two digits represent significant figures and the
last digit specifies the number of zeros to follow (Examples: 10 F = 100; 150 F = 151; 1,500 F = 152). When the
nominal capacitance value is less than 10 F (Examples: whole number such as 9; a mixed number such as 4.7; or a
fractional number such as 0.1 or 0.56), the letter "R" will be used to indicate the decimal point and will be placed
where appropriate in the three digit number. When the letter "R" is used, the succeeding digit or digits become
significant (Examples: 2 F = 2R0; 4.7F = 4R7; 0.1 F = 0R1: 0.56 F = R56).
1.2.1.4 Voltages. The dc rated voltage, dc surge voltage, and capacitance tolerance are identified by a single
letter in accordance with table II.
TABLE II. DC working voltage, dc surge voltage, and capacitance tolerance.
Capacitance
DC
Capacitance
Symbol
DC
DC
Symbol
DC
tolerance
surge
tolerance
rated
surge
rated
voltage
voltage
voltage
voltage
volts
percent
volts
volts
percent
volts
C
5
7
-10, +75
200
250
-10, +50
K
D
10
15
-10, +75
250
300
-10, +50
M
E
15
20
-10, +75
300
350
-10, +50
N
F
25
40
-10, +75
350
400
-10, +50
P
G
50
75
-10, +75
400
450
-10, +50
Q
H
100
150
-10, +75
450
500
-10, +50
R
J
150
200
-10, +75
1.2.2 Family. Capacitors covered by this specification are classified by families according to their means of
TABLE III. Families.
Family
Means of mounting
Styles
1
Axial wire-lead capacitors mounted by a tangential bracket
CE10, CE11,
or wrap-around bands.
CE12, and CE13
2
Universal-mounting capacitors mounted by a mounting ring.
CE31, CE32,
CE33, CE34,
CE35, and CE36
3
Stud-mounting capacitors mounted by a nut screwed on the
CE41, CE42,
threaded portion at the terminal end of the capacitor.
CE44, and CE45
CE51, CE52,
4
Plug-in capacitors mounted by plugging the terminals into a
standard, medium octal socket with a .687 .007-inch (17.45 mm
CE53, CE56,
0.18 mm)-diameter pin circle and secured by suitable clamps.
CE57, and CE58
5
Bathtub capacitors mounted by mounting lugs.
CE63 and CE64
6
Tapped-terminal capacitors (screw insert for bus-bar connection),
CE70 and CE71
mounted by a wraparound, footed-type bracket.
2
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