MIL-PRF-28750F
4.7.7.23 Electrical system spike, 25C only. (see 3.13.29) (for qualification and periodic inspections only).
a.
Test setup in accordance with figure 5.
b.
With switch S3 open and S2 closed, cycle switch S1 and observe oscilloscope CH1 (or other equivalent
instrument). Adjust V1 to obtain a minimum spike amplitude of 600 volts.
Close switch S3 and cycle switch S1 at 10 pulses ± 1 pulse per second for the specified (see 3.1) time.
c.
d.
e.
After completion, the SSR shall be tested for output leakage current (see 4.7.7.16), turn on time (see
4.7.7.24 Overload, 25C only. (see 3.13.30) (for qualification and periodic inspections only).
a.
Test setup in accordance with figure 1.
Apply the specified (see 3.1) overload conditions. Unless otherwise specified (see 3.1), the load shall be 3.5
b.
Apply specified (see 3.1) input turn-on conditions.
c.
d.
The SSR's shall be cycled on and off 10 times. Unless otherwise specified (see 3.1), the period shall be 1
second and the duty cycle shall be 10 percent.
After completion, the SSR shall be tested for output leakage current (see 4.7.7.16), and turn-on voltage in
e.
4.7.7.25 Power dissipation, 25C only. (see 3.13.31) (for qualification and periodic inspections only).
a.
ON state:
Test setup in accordance with figure 1.
1)
2)
Apply the maximum load, voltage, and specified frequency (if applicable).
Apply specified (see 3.1) maximum input turn-on conditions.
3)
4)
Measure all currents and corresponding voltages and calculate the product of each. Calculate the
power dissipation by adding each product with the output voltage drop times output current, for each
output switch in addition to any power dissipated by internal power supplies.
Verify that the total power dissipation does not exceed the specified (see 3.1) limits.
5)
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