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MIL-PRF-28750 Relays, Solid State, General Specification ForThis specification covers the general requirements for hermetically sealed or encapsulated solid-state relays \(SSR\'s\) \(see 6.1\), incorporating semiconductor, microelectronic, and passive circuit devices.

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MIL-PRF-28750F
Verify that control current, I(control), is as specified (see 3.1).
c.
4.7.7.2.6 Control turn-on voltage (see 3.13.7).
a.
Test setup in accordance with figure 1.
Apply the specified (see 3.1) load, voltage, and frequency (if applicable).
b.
c.
Apply the specified (see 3.1) bias voltage, V(bias), and the specified (see 3.1) control turn-on voltage,
V(control) to turn the SSR on.
d.
Verify that the SSR is ON by measuring the output current I(output), or by measuring output voltage drop
V(output).
4.7.7.2.7 Control turn-off voltage (see 3.13.8).
a.
Test setup in accordance with figure 1.
Apply the specified (see 3.1) load, voltage, and frequency (if applicable).
b.
c.
Apply the specified (see 3.1) bias voltage, V(bias), and control turn-on voltage to turn the SSR on. Then
apply specified (see 3.1) control turn-off voltage to turn the SSR OFF.
d.
Verify that the SSR is OFF by measuring the output current I(output) to be within leakage current
specification (see 3.1), or by measuring the output voltage V(output).
4.7.7.3 Overload: Will-not-trip current (see 3.13.9).
a.
Test setup in accordance with figure 1.
Apply the specified (see 3.1) will-not-trip current, and frequency (if applicable).
b.
c.
Apply specified (see 3.1) input conditions for the specified (see 3.1) will-not-trip time.
Verify that the SSR remains ON for the specified (see 3.1) time by observing the output current I(output), or
d.
the output voltage V(output).
Verify that the SSR meets the trip characteristics at the various current levels specified (see 3.1).
e.
4.7.7.4 Overload: Must-trip current (see 3.13.10).
a.
Test setup in accordance with figure 1.
Apply the specified (see 3.1) must-trip current, and frequency (if applicable).
b.
c.
Apply specified (see 3.1) input conditions for a time equal to or greater than the specified (see 3.1) must-trip
time.
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