While ago a friend gave me a handful of unused old Japanese transistors with part no 2SD1273, he did mention that these are old stuff but powerful transistors and didn't say any details what he meant by that.
Its been a while and never really paid attention to it, and just today when tidying up my components bins, on curiosity I downloaded the datasheet to check it out, and I was amazed at how high the hFE of this transistor. The pdf of the datasheet ->
Here![](https://www.eevblog.com/forum/beginners/transistor-with-quite-high-hfe/?action=dlattach;attach=38831;image)
Is this normal to have such a high hFE for this kind of transistor ? May be its just me (just a hobbyist), I've never seen such high beta with such relatively high current capability. At chart above, even at 2 Amp, the hFE still at about 400.
![Shocked :o](https://www.eevblog.com/forum/Smileys/default/shocked.gif)
Just curious what kind of circuit can be used for this high hFE advantage ?