MIL-C-62 Capacitors, Fixed, Electrolytic \(Dc, Aluminum, Dry Electrolyte, Polarized\), General Specification ForThis specification covers the general requirements for polarized, dry-electrolyte, aluminum, direct current \(dc\), fixed capacitors for use in filter and bypass circuits where large excesses of capacitance over the nominal capacitance can be tolerated.

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MIL-C-62F

3.14 Moisture resistance. When tested as specified in 4.5.11, capacitors shall meet the following requirements:

Dielectric withstanding voltage (see

4.5.11.2) insulating sleeves only - - - - -

Shall withstand a potential of not less than 4,000 volts dc.

Insulation resistance:

(insulating sleeves) - - - - - - - - - - - - - -

Shall be not less than 100 megohms.

DC leakage - - - - - - - - - - - - - - - - - - -

Shall not exceed 150 percent of the initial requirement (see 3.6) when

measured as specified in 4.5.3.

Capacitance- - - - - - - - - - - - - - - - - - - -

Change not more than 5 percent from the initial value obtained when

measured as specified in 4.5.4.

As specified in 3.8.

Dissipation factor - - - - - - - - - - - - - - - -

Visual examination - - - - - - - - - - - - - - -

There shall be no harmful or extensive corrosion and at least 90

percent of any exposed metallic surface of the capacitor shall be

protected by the finish. There shall be no more than 10 percent

corrosion of the terminal hardware or mounting surface. There shall

be no leakage of the electrolyte or deformation of the case, and

marking shall remain legible after the test. Insulating sleeves shall not

exhibit evidence of burning, charring, or arcing.

3.15 Impedance. When determined as specified in 4.5.12, the impedance shall not exceed the value specified

(see 3.1).

3.16 Stability at low and high temperatures. When tested as specified in 4.5.13, capacitors shall meet the

following requirements:

Step 1

DC leakage - - - - - - - - - - - As specified in 3.6.

Capacitance - - - - - - - - - - As specified in 3.7.

Dissipation factor- - - - - - - As specified in 3.8.

Step 2

Impedance - - - - - - - - - - -

As specified in 3.15.

Step 3

DC leakage- - - - - - - - - - -

As specified in 3.6.

Change not more than 5 percent from the initial 25C value (step 1).

Capacitance - - - - - - - - - -

As specified in 3.8.

Dissipation factor- - - - - - -

Step 4

Shall not exceed 10 times the initial 25C value (step 1) or shall meet the initial 25C

DC leakage - - - - - - - - - -

requirement, whichever is greater.

Capacitance - - - - - - - - - - - Shall not increase more than 20 percent from the initial 25C value (step 1).

Dissipation factor- - - - - - - - As specified in 3.8.

Step 5

DC leakage - - - - - - - - - - - As specified in 3.6.

Capacitance- - - - - - - - - - - Shall not increase more than 20 percent from the initial 25C value (step 1).

Dissipation factor - - - - - - - As specified in 3.8.