MIL-PRF-20/27G
Temperature coefficient and capacitance drift: In accordance with MIL-PRF-20. For capacitors with values of 18
pF or less, the temperature coefficient tolerance shall be determined in accordance with table II.
TABLE II. Temperature coefficient tolerances.
Permissible capacitance change from capacitance at +25°C in ppm/°C
Characteristic
Temperature
CX
CK
CJ
CH
CG
±250 ppm/°C
±120 ppm/°C
±60 ppm/°C
±30 ppm/°C
+125°C
1/
-55°C 2/
1/
+246.25
+116.25
+55.00
+27.50
-326.25
-166.25
-91.25
-53.75
1/ Not practically measurable.
2/ The ppm/°C values for -55°C were calculated by dividing ppm by negative 80°C.
Life: In accordance with MIL-PRF-20, operating condition 2.
Part or Identifying Number (PIN): In accordance with MIL-PRF-20 and table I.
Marking: Method I of MIL-STD-1285, as shown in the following example:
JCK - "J" brand (ER only) (J); and characteristic (CK).
2R2 - Capacitance value.
CM1 - Capacitance tolerance (C); FR level, CCR75 only (M); and year code (1 for 2011).
ATM - Lot code (A); and trademark (TM).
Referenced documents. In addition to MIL-PRF-20, this specification sheet references the following document:
Changes from previous issue. The margins of this specification sheet are marked with vertical lines to indicate
where changes from the previous issue were made. This was done as a convenience only and the Government
assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to
evaluate the requirements of this document based on the entire content irrespective of the marginal notations and
relationship to the last previous issue.
Custodians:
Preparing activity:
Army - CR
DLA - CC
Navy - EC
Air Force 85
(Project 5910-2011-011)
DLA - CC
Review activities:
Navy - AS, MC, OS, SH
Air Force 99
NOTE: The activities listed above were interested in this document as of the date of this document. Since
organizations and responsibilities can change, you should verify the currency of the information above using the
ASSIST Online database at https://assist.daps.dla.mil.
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