MIL-PRF-83531C
3.8.5 Delay time variation with temperature. When tested in accordance with 4.6.6.1.5, the delay time
variation with temperature shall not exceed the value specified (see 3.1).
3.8.6 DC resistance. When delay lines are tested as specified in 4.6.6.1.6, the dc resistance shall be
as specified (see 3.1).
3.8.7 Nominal characteristic impedance. When tested in accordance with 4.6.6.1.7, nominal
characteristic impedance shall be as specified on individual specification sheets (see 3.1).
3.8.8 Insulation resistance. Unless otherwise specified (see 3.1), when delay lines are tested in
accordance with 4.6.6.1.8, the minimum insulation resistance shall be 1,000 megohms (MΩ).
3.9 Resistance to solvents. When delay lines are tested as specified in 4.6.7, there shall be no
evidence of mechanical damage, and the markings shall remain legible. The paint or exterior finish shall
not soften, peel, or show other signs of deterioration.
3.10 Solderability. When delay lines are tested as specified in 4.6.8, they shall meet the applicable
criteria for terminal evaluation in the test method.
3.11 Moisture resistance. When tested in accordance with 4.6.9, there shall be no evidence of other
physical damage that would affect the mechanical or electrical operation of the delay line. There shall be
no evidence of electrical discontinuity.
3.12 Salt spray (corrosion) (metal cases only) (when specified, see 3.1). When delay lines are tested
as specified in 4.6.10, there shall be no evidence of corrosion as exhibited by any visible degradation of
the surfaces that can be attributed to flaking, pitting, blistering, or otherwise loosened protective coating
or metal surface.
3.13 Vibration. When delay lines are tested as specified in 4.6.11, there shall be no leakage of filling
material and no evidence of other physical damage such as cracks, bursting, or bulging of the case.
There shall be no evidence of mechanical damage and there shall be no electrical discontinuity during the
test.
3.14 Shock. When delay lines are tested as specified in 4.6.12, there shall be no leakage of filling
material and no evidence of other physical damage such as cracks, bursting, or bulging of the case.
There shall be no evidence of mechanical damage and there shall be no electrical discontinuity during the
test.
3.15 Life. When delay lines are tested as specified in 4.6.13, there shall be no evidence of impairment
to the protective finish or of other physical damage such as cracks, bursting, or bulging of the case, and
there shall be no evidence of electrical discontinuity.
3.16 Terminal strength. When delay lines are tested as specified in 4.6.14, there shall be no evidence
of loosening, rupturing, or other mechanical damage. Bends shall not be considered as damage unless
surface cracking is evident. Except for flexible leads, there shall be no rotation of the terminals. Rotation
of the external portion of the metallic portion of a "hook" type terminal exceeding 10 degrees shall
constitute a failure.
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