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APPLICATIONS
These miniature multilayer ceramic capacitors, style CKR31
and CKR32, are qualified to Established Reliability specification
MIL-C-39014/21. High volumetric efficiency and reliable perform-
ance result from the special GLASS-K dielectric, which is fused into
a compact monolithic structure. These capacitors are available in
three different stability characteristics.
PERFORMANCE CHARACTERISTICS
Tolerance: ±20% and ±10% in characteristics “U” and “V”,
and ±10% and ±5% in characteristic “T”.
Stability Characteristics: Available as follows:
BT-TC: +2, -10%; TVC: +2, -10%
BU-TC: +2, -15%; TVC: +2, -15%
BV-TC: +20, -45%; TVC: +20, -50%
Dissipation Factor:
BT: ≤1.0%
BU: ≤1.5%
BV: ≤3.0%
Life: Meets or exceeds requirements of MIL-C-39014. At
200% of rated voltage, 125°C, at 4,000 hours, the capaci-
tance change for each stability characteristic is as follows:
BT: ±5%
BU: ±10%
BV: ±20%
Insulation Resistances: At 25°C, 100,000 megohms or
1,000 megohm-microfarads. At 125°C, 10,000 megohms or
100 megohm-microfarads.
Voltage/Temperature Ratings0: Rated voltage is 50 Vdc.
The operating temperature range is -55°C to +125°C.
Moisture Resistance: Meets or exceeds requirements of
MIL-C-39014 and MIL-STD-202, Method 106. The capaci-
tance change is less than 2% for stability characteristics T
and U, and less than 5% for characteristic V.
CKR31BT
CKR31
CKR32
CKR32BT
L
D
31.75
(1.250)
Min.
Glass-K Capacitors
CKR31, 32 (QPL to MIL-C-39014/21)
Established Reliability
Case Lead Dia. Weight
Size L D +0.1(+0.004) (Grams)
±.254 (0.010) ±.254 (0.010) -0.03(±0.001) (Typ.)
CKR31 6.09 2.29 .41
(0.240) (0.090) (0.016) .2
CKR32 6.09 3.30 .41
(0.240) (0.130) (0.016) .3
DIMENSIONS: millimeters (inches)
Note: Leads are gold-plated, solderable and weldable per MIL-STD-1276,
Type D.
Capacitance – pF Style Stability
CKR Char.
270 – 10,000 31 BT
12,000 – 20,000 31 BU
32 BT
22,000 – 39,000 31 BV
32 BU
47,000 – 51,000 31 BV
56,000 – 100,000 32 BV
QUICK SELECTION GUIDE
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M39014/21
(Dash Number) Capacitance Capacitance DC
Failure Rate Level Value Tolerance Rated
(%/1,000 hours) (pF) ± Percent Voltage
1.0 (M)
CKR31 (BV)
0049 22,000 10 50
0050 22,000 20 50
0051 27,000 10 50
0052 27,000 20 50
0053 33,000 10 50
0054 33,000 20 50
0055 39,000 10 50
0056 39,000 20 50
0057 47,000 10 50
0058 47,000 20 50
0059 51,000 10 50
0060 51,000 20 50
CKR32 (BT)
0061 12,000 5 50
0062 12,000 10 50
0063 15,000 5 50
0064 15,000 10 50
0065 18,000 5 50
0066 18,000 10 50
0067 20,000 5 50
0068 20,000 10 50
CKR32 (BU)
0069 22,000 10 50
0070 22,000 20 50
0071 27,000 10 50
0072 27,000 20 50
0073 33,000 10 50
0074 33,000 20 50
0075 39,000 10 50
0076 39,000 20 50
CKR32 (BV)
0077 56,000 10 50
0078 56,000 20 50
0079 62,000 10 50
0080 62,000 20 50
0081 68,000 10 50
0082 68,000 20 50
0083 75,000 10 50
0084 75,000 20 50
0085 82,000 10 50
0086 82,000 20 50
0087 91,000 10 50
0088 91,000 20 50
0089 100,000 10 50
0090 100,000 20 50
M39014/21
(Dash Number) Capacitance Capacitance DC
Failure Rate Level Value Tolerance Rated
(%/1,000 hours) (pF) ± Percent Voltage
1.0 (M)
CKR31 (BT)
0001 270 5 50
0002 270 10 50
0003 330 5 50
0004 330 10 50
0005 390 5 50
0006 390 10 50
0007 470 5 50
0008 470 10 50
0009 560 5 50
0010 560 10 50
0011 680 5 50
0012 680 10 50
0013 820 5 50
0014 820 10 50
0015 1,000 5 50
0016 1,000 10 50
0017 1,200 5 50
0018 1,200 10 50
0019 1,500 5 50
0020 1,500 10 50
0021 1,800 5 50
0022 1,800 10 50
0023 2,200 5 50
0024 2,200 10 50
0025 2,700 5 50
0026 2,700 10 50
0027 3,300 5 50
0028 3,300 10 50
0029 3,900 5 50
0030 3,900 10 50
0031 4,700 5 50
0032 4,700 10 50
0033 5,600 5 50
0034 5,600 10 50
0035 6,800 5 50
0036 6,800 10 50
0037 8,200 5 50
0038 8,200 10 50
0039 10,000 5 50
0040 10,000 10 50
CKR31 (BU)
0041 12,000 10 50
0042 12,000 20 50
0043 15,000 10 50
0044 15,000 20 50
0045 18,000 10 50
0046 18,000 20 50
0047 20,000 10 50
0048 20,000 20 50
MARKING
JCK31
103KM
0505B
AVX
J = JAN Trademark
CK = Style
31 = Case Size
103 = Capacitance, Coded in pF
K = Tolerance
M = Failure Rate Level
0505 = Date Code
B = Lot Code
AVX = AVX Corporation
Glass-K Capacitors
Part Numbers and Ordering Information
CROSS REFERENCE
MIL-C-39014/21 MIL-C-11015/25
Style Style
CKR31 CK31
CKR32 CK32
Part Number Explanation
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)
Example: M39014/21-0040
CKR31 10,000pF ±10% 50V
M Failure Rate (BT Characteristic)
RATINGS & PART NUMBER REFERENCE
