An SCR has a circuit fusing rating of 28 A2s. Will the device be destroyed if it is subjected to a 25 A surge that lasts for 50 ms?
A) Yes
B) No

Name: An SCR has a circuit fusing rating of 28 A2s. Will the device be destroyed if it is subjected to a 25 A surge that lasts for 50 ms? A) Yes B) No
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Question

Quizplus · Accepted Answer

The energy through the SCR is calculated as I^2 * t = 25^2 * 0.05 = 31.25 A2s, which exceeds the fusing rating of 28 A2s, so the device will be destroyed.

An SCR Has a Circuit Fusing Rating of 28 A2s