MIL-PRF-123D
(4) Capacitance: Change not to exceed ±15 percent from the initial measured value for BX and BR
characteristics, and ±0.3 percent or 0.3 pF, whichever is greater, from the initial measured value for BP
and BG characteristics.
(5) Dissipation factor: Shall not exceed the value specified (see 3.12).
b. 1,000-hour, 2,000-hour, and 4,000-hour limits:
(1) Insulation resistance (at +125°C): Shall not be less than 30 percent of the value specified (see 3.14).
(2) Visual examination: No mechanical damage. Marking shall remain legible.
(3) Insulation resistance (at +25°C): Shall not be less than 30 percent of the value specified (see 3.14).
(4) Capacitance: Change not to exceed ±20 percent from the initial measured value for BX and BR
characteristics, and ±0.5 percent or 0.5 pF, whichever is greater, from the initial measured value for BP
and BG characteristics.
(5) Dissipation factor: Shall not exceed 3.0 percent for BX and BR characteristics, and 0.15 percent for BP
and BG characteristics.
3.24 Marking capacitors. Capacitors shall be marked as specified herein. Paper labels shall not be used. Other
markings which in any way interfere with, obscure, or confuse those specified herein, are prohibited. Each capacitor
shall be legibly marked and will withstand the environmental conditions specified herein. The marking shall be a
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minimum resistance of 1 x 10 ohms per square and shall remain legible after coating the parts with 1.5 to 3 mils of
transparent conformal coating such as polyurethane, acrylic, or the equivalent.
3.24.1 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 specification, shall bear the certification mark "JAN" except that items too small to
bear the certification mark "JAN" shall bear the letter "J". The "JAN" or "J" shall be placed immediately before the
PIN 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 PIN. Items furnished under contracts or orders which
either permit or require deviation from the conditions or requirements specified herein and 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 or associated specifications, the manufacturer shall remove completely the
military PIN 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".
*
3.24.2 Full marking (leaded capacitors). Unless otherwise specified (see 3.11), capacitors shall be marked with
the "JAN" or "J" marking, part number, date and lot code, manufacturer's five digit commercial and government entity
(CAGE) code, voltage, capacitance, and capacitance tolerance. There shall be no space between the symbols that
comprise the part number. The date code and lot number shall consist of the year, week, and lot code. For
example: Week 40 of 2005 would be 0540-. Capacitors shall be marked in accordance with one of the examples
shown on figure 3 (see 3.1).
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