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Is it safe to test parts attached to unpowered IC's?

Question asked by edward.riess@l3t.com on Sep 26, 2017
Latest reply on Oct 27, 2017 by krisf

Flying-probe testing of components attached to inputs and outputs of an AD822 is desired in unpowered avionics boards. Testing diode forward voltages at 1mA and 10mA is suggested, possibly supplying these currents at voltages up to 1.3V between any input, output, and power pins.  Would this be guaranteed to be safe and non-injurious to an AD822 op amp?  If not, what voltage and current limits would make such tests safe?

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