Fake Toshiba 2sk2013/2sj313?

[tamra]

I bought 2sk2013/2sj313 at yahoo auction just now but found some fake news here.

I saw seller's fet analysis but 2sk2013's Vgs-id looks weird.

2SK2013：Vgs = 1.782～1.970V Id = 5.00～5.05mA
2SJ313：　Vgs = 4.029～4.256V Id = 4.95～4.98mA

From datasheet,2sk2013's VHS must be around 2.5v.
And photo.
I might cancel my bid, could someone advice me if I am saying right or not?
Sorry for noob question.

 

[nattawa]

2SK2013 Vgs should be within a range 1.8V-2.8V see attached. This is not saying the device you ordered are genuine or not though. Good luck.

 

[prakit]

I have measured a lot of these FETs. For Id=40mA, most of K2013's Vgs will be around 2.1V-2.2V and J313's Vgs will be around -2.0 to-2.1V.
The pictures in the auction are too blurry to tell if they are fake or genuine. I have seen a lot of fake devices on Yahoo’s auction, sadly. Attached photo shows the genuine K2013/J313.
Hope this helps.

 

[tamra]

Thank you so much.

 

[Nelson Pass]

Toshiba's adherence to spec has always been so tight that I would be very suspicious of those numbers.

 

[G600]

tamra, I may be naïve, but as you are in Japan, there must be some old fashion shops with a few legit pieces for you?

 

[tamra]

Thank you so much for advice.
There is one shop sells unmatched 2sk2013/j313 in Tokyo.
I could buy like 20-30 each to make it closer.