MIL-R-10509 Resistors, Fixed, Film High Stability General Specification ForThis specification covers the general requirements for high-stability, film, fixed resistors that are relatively stable with respect to time under environmental condition

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MIL-R-10509J

h.  Measurement after test:  DC resistance shall be measured as specified in 4.7.2.

i.   Examination after test:  Resistors shall be examined for evidence of flashover, mechanical damage, arcing, and insulation breakdown.

4.7.8.2  Barometric pressure.  Resistors shall be tested in accordance with method 105 of

MIL-STD-202.  The following details and exceptions shall apply:

a.  Method of mounting:  As specified in 4.7.8.1a.

b.  Initial measurement:  DC resistance shall be measured as specified in 4.7.2. c.  Test condition:  B.

d.  Test voltage during subjection to reduced pressure:  450 volts rms for all resistors except for styles

RN50, RN55, and RN60 which shall have 200 volts applied, respectively. e.  Nature of potential:  As specified in 4.7.8.1d.

f.   Duration of test:  1 minute.

g.  Points of application of test voltage:  As specified in 4.7.8.1g.

h.  Measurement after test:  DC resistance shall be measured as specified in 4.7.2.

Following the test, resistors shall be examined for evidence of flashover, mechanical damage, arcing, and insulation breakdown.

4.7.9  Insulation resistance (see 3.14).  Resistors shall be tested in accordance with method 302 of

MIL-STD-202.  The following details and exceptions shall apply:

a.  Special preparations:  As specified in 4.7.8.1a.

b.  Test condition letter:  A or B, whichever is practical, except that test condition A only shall be used for style RN50.

c.  Points of measurements:  Between the resistor terminals connected together and the V-block.

4.7.10  Resistance to soldering heat (see 3.15).  Resistors shall be tested in accordance with method

210 of MIL-STD-202.  The following details and exceptions shall apply:

a.  Measurement before test:  DC resistance shall be measured as specified in 4.7.2.

b.  Special preparation of specimen:  Sample units shall not have been soldered during any of the previous tests.

c.  Test condition letter:  B.

d.  Examination and measurement after test:  Resistors shall be visually examined under 10X

magnification and dc resistance shall be measured as specified in 4.7.2.

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