Military Glass-K Capacitors
MIL-PRF-39014/21
CKR31, 32
MARKING
Part Number Explanation
J = JAN Trademark
CK = Style
JCK31
103KM
0302B
AVX
Part numbers are formed by adding a dash number
from the part number table to the basic mil spec
number – M39014/21 – (add dash number)
M39014/21 – Example: M39014/21-0040
CKR31 10,000pF 10ꢀ 50V
31 = Case Size
103 = Capacitance, Coded in pF
K = Tolerance
M = Failure Rate Level
0302 = Date Code
B = Lot Code
M Failure Rate
(BT Characteristic)
AVX = Vendor
CROSS REFERENCE
MIL-PRF-39014/21
Style
MIL-PRF-11015/25
Style
CKR31
CKR32
CK31
CK32
M39014/21
M39014/21
(Dash Number)
Failure Rate Level
(%/1,000 hours)
1.0 (M)
Capacitance Capacitance
DC
Rated
Voltage
Capacitance Capacitance
DC
Rated
Voltage
(Dash Number)
Failure Rate Level
(%/1,000 hours)
1.0 (M)
Value
(pF)
Tolerance
Percent
Value
(pF)
Tolerance
Percent
CKR31 (BT)
CKR31 (BV)
0049
0050
0051
0052
0053
22,000
22,000
27,000
27,000
33,000
10
20
10
20
10
50
50
50
50
50
0001
0002
0003
0004
0005
270
270
330
330
390
5
10
5
10
5
50
50
50
50
50
0054
0055
0056
0057
0058
33,000
39,000
39,000
47,000
47,000
20
10
20
10
20
50
50
50
50
50
0006
0007
0008
0009
0010
390
470
470
560
560
10
5
50
50
50
50
50
10
5
10
0059
0060
51,000
51,000
10
20
50
50
0011
0012
0013
0014
0015
680
680
5
10
5
50
50
50
50
50
820
CKR32 (BT)
820
1,000
10
5
0061
0062
0063
0064
0065
12,000
12,000
15,000
15,000
18,000
5
10
5
10
5
50
50
50
50
50
0016
0017
0018
0019
0020
1,000
1,200
1,200
1,500
1,500
10
5
50
50
50
50
50
10
5
0066
0067
0068
18,000
20,000
20,000
10
5
10
50
50
50
10
0021
0022
0023
0024
0025
1,800
1,800
2,200
2,200
2,700
5
10
5
10
5
50
50
50
50
50
CKR32 (BU)
0069
0070
0071
0072
0073
22,000
22,000
27,000
27,000
33,000
10
20
10
20
10
50
50
50
50
50
0026
0027
0028
0029
0030
2,700
3,300
3,300
3,900
3,900
10
5
50
50
50
50
50
10
5
0074
0075
0076
33,000
39,000
39,000
20
10
20
50
50
50
10
0031
0032
0033
0034
0035
4,700
4,700
5,600
5,600
6,800
5
10
5
10
5
50
50
50
50
50
CKR32 (BV)
0077
0078
0079
0080
0081
56,000
56,000
62,000
62,000
68,000
10
20
10
20
10
50
50
50
50
50
0036
0037
0038
0039
0040
6,800
8,200
10
5
50
50
50
50
50
8,200
10
5
10,000
10,000
0082
0083
0084
0085
0086
68,000
75,000
75,000
82,000
82,000
20
10
20
10
20
50
50
50
50
50
10
CKR31 (BU)
0041
0042
0043
0044
0045
12,000
12,000
15,000
15,000
18,000
10
20
10
20
10
50
50
50
50
50
0087
0088
0089
0090
91,000
91,000
100,000
100,000
10
20
10
20
50
50
50
50
0046
0047
0048
18,000
20,000
20,000
20
10
20
50
50
50
44
KYOCERA AVX [ KYOCERA AVX ]
