CrustyTV wrote:The test correctly identifies it as an NPN and the pin out matches datasheet however it also registers as NPN in an adjacent test where the emitter an collector swap places !!!! I tested an entire pack of 20 and all do the same,
CrustyTV wrote:The original BC184L does not do this
BluePilot wrote:NPN is NPN, even if collector and emitter are reversed.
Is it broken, different package, ...?
TVJON74 wrote:Hi Chris,
That's probably normal.
Your meter is measuring two diode drops, one from base to emitter and one from base to collector. If you swap collector and emitter your still measuring two diode drops.
You could experiment with other npn devices to see if they behave the same way.
Alistair D wrote:I would guess that the original transistor is open circuit B-E or B-C. That would also explain why you cannot get an Alpha/Beta reading.
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