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| Posted: Fri Oct 08, 2026 5:13 pm Post subject: why PNP transistor have more short units than NPN? |
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after AC test, i found some units short, FA report showed that is C-E short.
but on the mean while we use two device(PNP type and NPN type) to test AC.
after electrical test. PNP type have 10 pcs short, while NPN type is not short.
in the test program, the PNP used Max current is IC=500ma, while NPN is 150ma. |
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