MIL-C-11272 Capacitors, Fixed, Glass Dielectric General Specification ForThis specification covers the general requirements for glass-dielectric, fixed capacitors enclosed in glass, epoxy or porcelain cases, suitably protected against high humidity.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13

MIL-C-11272E

3.4.3 Connections. Electrical connections shall not depend upon the terminals being clamped between a metallic

member and an insulating material other than the glass material. Such connections shall be securely made,

mechanically and electrically, with the capacitor element by soldering, welding, or mechanical means, in such a

manner that the normal movements of the terminal leads will not result in strain, wear, or damage to the capacitor

element, case, or coating.

3.5 Dielectric withstanding voltage. Capacitors shall withstand the direct current (dc) potential specified in 4.6.2

without damage, arcing, or breakdown.

3.6 Barometric pressure. Capacitors shall withstand the dc potential specified in 4.6.3 without damage, arcing, or

breakdown.

3.7 Insulation resistance. When measured as specified in 4.6.4, the insulation resistance shall exceed 100,000

megohms.

3.8 Capacitance. When measured as specified in 4.6.5, the capacitance shall be within the tolerance shown in

the type designation (see 3.1).

3.9 Dissipation factor. When measured as specified in 4.6.6, the dissipation factor shall be not more than 0.001.

3.10 Quality factor (Q). When measured as specified in 4.6.7, the Q shall be not less than the value shown on

figure 1, unless otherwise specified (see 3.1).

3.11 Shock (specified pulse). When capacitors are tested as specified in 4.6.8, there shall be no intermittent

contacts, open- or short-circuiting, nor evidence of arcing or mechanical damage.

3.12 Vibration, high frequency. When capacitors are tested as specified in 4.6.9, there shall be no intermittent

contacts, open- or short-circuiting, nor evidence of mechanical damage.

3.13 Thermal shock and immersion. When tested as specified in 4.6.10, capacitors shall meet the following

requirements:

Visual examination - There shall be no evidence of corrosion or mechanical damage that will affect life or

serviceability.

Dielectric withstanding voltage - There shall be no evidence of damage, arcing, or breakdown.

Insulation resistance - Not less than 100,000 megohms.

Capacitance - Change not more than 0.5 percent of the nominal value or 0.5 pF, whichever is greater, from

the initial value obtained when measured as specified in 4.6.5.

Dissipation factor - Not to exceed 0.001.