MIL-PRF-28750F
Nature of potential: As specified (see 3.1).
b.
c.
Points of application: Chassis ground, if applicable, and a common connection of all other terminals.
d.
Maximum leakage current: 1.0 mA.
e.
Test time shall be 60 seconds for qualification testing and for all other testing at the specified DWV (see
3.1). If the test voltage is increased to 5 percent above the specified (see 3.1) voltage, the test time shall be
15 seconds.
f.
Following these tests, SSR's shall be examined for evidence of arcing, flashover, insulation breakdown, and
damage.
4.7.6.2 At reduced barometric pressure. SSR's specified (see 3.1) for operation above 10,000 feet shall be tested
in accordance with MIL-STD-202, method 105. The following details shall apply:
a.
Method of mounting: Normal mounting means.
Test condition: C (unless otherwise specified) (see 3.1).
b.
Tests during subjection to reduced pressure: As specified in 4.7.6.1, except test voltage shall be 1/3 of
c.
specified magnitude.
Same as 4.7.6.1 e.
d.
4.7.7 Electrical characteristics.
4.7.7.1 Reverse polarity (dc operated SSR's) (see 3.13.1).
a.
Input configuration
Test setup in accordance with figure 1.
1)
2)
Apply specified (see 3.1) load, voltage, and frequency (if applicable).
Remove input voltage, and status voltage (if applicable), and reapply the specified (see 3.1) voltage in
3)
reverse polarity between input and input ground.
Verify that the reverse input current (I(in)) is below the specified (see 3.1) value.
4)
5)
Observe the output for any sign of turn-on by measuring V(output).
4.7.7.2 Input characteristics.
4.7.7.2.1 Input current (see 3.13.2).
a.
Test setup in accordance with figure 1.
b.
Apply maximum input voltage (V(in)).
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