MIL-PRF-49464 Capacitors, Chip, Single Layer, Fixed, Parallel Plate, Ceramic Dielectric, Established Reliability, General Specification ForThis specification covers the general requirements for ceramic plate, single layer capacitors. These capacitors are intended for stripline or microstrip applications, usually at frequencies of 1 GHz and higher. Capacitors covered by this specification have failure rate levels \(FRL\) ranging from 1.0 to 0.001 percent per 1,000 hours. These failure rate levels are established at a 90-percent confidence level and maintained at a 10-percent producer\'s risk. They are based on life tests performed at a maximum rated voltage at maximum rated temperature. An acceleration factor of 8:1 has been used to relate life test data obtained at 200 percent of rated voltage at maximum rated temperature, to rated voltage at rated temperature. Statistical Process Control \(SPC\) techniques are required in the manufacturing process to minimize variation in production of capacitors supplied to the requirements of this specification.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12

MIL-PRF-49464C

3.16 Life (at +125�C). When tested as specified in 4.8.13, capacitors shall meet the following requirements:

a. Visual examination: No mechanical damage.

b. Insulation resistance (at +125�C): Shall not be less than 30 percent of initial requirement (see 3.9).

c. Insulation resistance (at +25�C): Shall not be less than 30 percent of initial requirement (see 3.9).

d. Capacitance change:

(1) Symbols F and G: Shall change not more than 2.0 percent of the nominal value or 0.5 pF from the initial

value, whichever is greater.

(2) Symbol W: Shall change not more than �10 percent from the initial measured value.

e. Dissipation factor: Shall be as specified in 3.8.

3.17 Fungus. The manufacturer shall certify that all materials are fungus resistant or shall perform the test as

specified in 4.8.14. When capacitors are tested as specified in 4.8.14, there shall be no evidence of fungus growth

on the external surface.

3.18 Marking. There shall be no marking on the capacitors. Capacitor packaging containers shall be marked with

the PIN, capacitance, capacitance tolerance, voltage, date code and lot symbol, "JAN" brand, and the Commercial

and Government Entity (CAGE) code.

3.18.1 JAN and J marking. The United States Government has adopted and is exercising legitimate control over

the certification marks "JAN" and "J", respectively, to indicate that items so marked or identified are manufactured to,

and meet all the requirements of specifications. Accordingly, items acquired to, and meeting all of the criteria

specified herein and in applicable specifications shall bear the certification mark "JAN" except that items too small to

bear the certification mark "JAN" shall bear the letter "J". The "JAN" and "J" shall be placed immediately before the

part number except that if such location would place a hardship on the manufacturer in connection with such marking,

the "JAN" or "J" may be located on the first line above or below the part number. Items furnished under contracts or

orders which either permit or require deviation from the conditions or requirements specified herein on in applicable

specifications shall not bear "JAN" or "J". In the event an item fails to meet the requirements of this specification and

the applicable specification sheets, the manufacturer shall remove completely the military part number and the "JAN"

or the "J" from the sample tested and also from all items represented by the sample. The "JAN" or "J" certification

mark shall not be used on products acquired to contractor drawings or specifications. The United States Government

has obtained Certificate of Registration Number 504,860 for the certification mark "JAN" and Registration Number

1,586,261 for the certification mark "J".

3.18.2 Substitutability of FRL. A manufacturer may supply to all higher FRLs than to which they are qualified.

Items of an exponential FRL as shown below and marked to lower FRL's with procuring agency approval, are

substitutable for higher FRL's, and shall not be remarked unless specified in the contract or order (see 6.2), the lot

date codes on the parts are unchanged, and the workmanship criteria is met.

Parts qualified to

Are substitutable for

product level

R, P, and M

P, and M