2SK146 Dual JFET matched pair pinout

[Jebem]

Hi,

I have a few 2SK146 Toshiba dual jfet devices that I am planning to use to build an phono preamp.

However, I just realized that it seems impossible to find the pinout configuration anywhere...

Is anyone aware of that knowledge and able to share it in this site, please?

Thanks!

 

[Jebem]

Well, after much digging around, I found this Japanese site, where pin-outs can be checked for 2SK146 dual JFET, and also the 2SK147 single JFET (the 2SK146 contains two 2SK147 in a single aluminum capsule, where one uses Series A pin-out and the other one uses series B pin-out, and in this way, both Drain and Source pins are located side by side):
2SK101-200

However, my Japanese is not good enough (cough, cough...), so I have used, guess what, our friend Google to translate one or another word:


東芝 => Toshiba
2SK147のＤｕａｌタイプ => Dual type 2SK147
SOURCE => ソース
GATE => ゲート
DRAIN => ドレイン

So, I came out with the following pin-out comfiguration for the 2SK146 dual JFET packages:


The top notch on the capsule will tell us where to find pin 1.

Any one can comment on this?
I hope to do some testing to find out the IDSS and Vp for my 2SK146 GR H2 devices soon..

 

[Zen Mod]

ECA TDV sez :

 

[Jebem]

Thank You so much, Zen Mod!
Nice tool of yours...

 

[jacco vermeulen]

.

 

[QSerraTico_Tico]

Drain is marked with red dot. Though drain and source probably interchangable.

 

[Jebem]

Great!
Thanks Jacco... and Thanks/Gracias/Obrigado Serra, for the 2SK146 datasheet showing the pin-out as well.

 

[os12300]

Hi! for all, an thanks, for you help and information.
Thanks from Veracruz, México.

 

[glitch]

Finally got me to register for the forums 🙂 Thanks for the datasheets, hard to find anywhere else in English!