scope:

This specification covers the general requirements for established reliability (ER) and non-ER, temperature compensating, fixed capacitors for use primarily where compensation is necessary for circuit applications due to temperature changes, in bypass and coupling applications. Capacitors meeting the ER requirements specified herein have a failure rate level ranging from 1.0 percent per 1,000 hours to 0.00l percent per 1,000 hours. These failure rate levels are established at a 90-percent confidence level based on the life test parameters specified and are maintained at a 10-percent producer's risk. An acceleration factor of 8:1 has been used to relate the life test data at 200 percent of rated voltage at the applicable high test temperature to the rated voltage at the applicable high test temperature.

A part per million (PPM) quality system is used for documenting and reporting the average outgoing quality of ER capacitors supplied to this specification. Statistical process control (SPC) techniques are required in the manufacturing process to minimize variation in production of ER capacitors supplied to the requirements of this specification. Beneficial comments (recommendations, additions, deletions) and pertinent data which may be of use in improving this document should be addressed to: 2750 LOG/ESP, Gentile Station, 1060 Hamilton Street, Dayton, OH 45444-5400, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter.

The PIN shall be in the following form, and as specified (see 3.1 and 6.2).

The style is identified by either the three-letter symbol "CCR" (ER parts) or by the two-letter symbol "CC" (non-ER parts) followed by a two-digit number. The letters identify temperature compensating, ceramic dielectric, fixed capacitors, and the number identifies the shape and dimensions of the capacitor.

The characteristic is identified by a two-letter symbol in accordance with table I. The first letter identifies the nominal temperature coefficient; the second letter identifies the approximate tolerance envelope for the temperature coefficient (F = ±15 PPM/°C; G = ±30 PPM/°C; H = ±60 PPM/°C; J = ±120 PPM/°C; and K = ±250 PPM/°C) (see figures 1 through 9, and 6.5).

The nominal capacitance value expressed in picofarads (pF) is identified by a three-digit number; the first two digits represent significant figures and the last digit specifies the number of zeros to follow. When the nominal value is less than 10 pF, the letter "R" shall be used to indicate the decimal point and the succeeding digit(s) of the group shall represent significant figure(s). For example, 1RO indicates 1.0 pF; R75 indicates 0.75 pF; and 0R5 indicates 0.5 pF. TABLE I. Characteristic.

Symbol Nominal Nominal temperature Symbol temperature coefficient coefficient ------------------------------------------------------------------------ PPM/°C PPM/°C ------------------------------------------------------------------------- AH 100 ±60 PH −150 ±60 AJ 100 ±120 PJ −150 ±120 AK 100 ±250 PK −150 ±250 CF 0 ±15 RF −220 ±15 CG 0 ±30 RG −220 ±30 CH 0 ±60 RH −220 ±60 CJ 0 ±120 RJ −220 ±120 CK 0 ±250 RK −220 ±250 CX 1/ SG −330 ±30 HF −30 ±15 SH −330 ±60 HG −30 ±30 SJ −330 ±120 HH −30 ±60 SK −330 ±250 HJ −30 ±120 TG −470 ±30 HK −30 ±250 TH −470 ±60 LF −80 ±15 TJ −470 ±120 LG −80 ±30 TK −470 ±250 LH −80 ±60 UG −750 ±30 LJ −80 ±120 UH −750 ±60 LK −80 ±250 UJ −750 ±120 PF −150 ±15 UK −750 ±250 PG −150 ±30 ------------------------------------------------------------------------------- 1/ Not practically measurable.

The capacitance tolerance is identified by a single letter in accordance with table II. TABLE II Capacitance tolerance.

Symbol Capacitance tolerance ------------------------------------------------------------------------------- (±) B 0.1 pF C 0.25 pF D 0.5 pF F 1/ 1 percent G 1/ 2 percent J 5 percent K 10 percent -------------------------------------------------------------------------------- 1/For nominal capacitance of 10 pF or less, the capacitance tolerances shall be ±1.0 pF (F) and ±2.0 pF (G).

The failure rate level shall be as specified in table III. TABLE III. FR level (established at a 90-percent confidence level).

Symbol FR level --------------------------------------- Percent/1,000 hrs --------------------------------------- M 1.0 P 0.1 R 0.01 S 0.001 -----------------------------------------

This appendix details the procedure for submission of samples, with related data, for qualification inspection of capacitors covered by this specification. The procedures for extending qualification of the required sample to other capacitors covered by this specification is also outlined herein. This appendix is a mandatory part of this specification. The information contained herein is intended for compliance.

intended Use: