Hockey Puck SIT 2SK180 by Tokin source NOS

[pras1170]

In order to finish reading this article, I used the translation software, and watched a morning, finally finished.

There seems to be a lot of questions, but there's no proof of truth,
I need the picture, which one can provide the picture of measurement, I can do the same action according to your picture

I can do basic measurements

 

[chromenuts]

Thermal pads for solid state relay from Electronic Components and Accessories | MPJA.COM
this solution was on AudioMaker video, start time 27:00 Lab Hangout #2
Greetings

Hey Soundhappy...I followed your link and tried searching the website, but couldn’t find a thermal pad like that. Afterward, I just did a Google for “large electronic relay insulating pad” and I got a hit on their website...but it says NLA.

Is this the item?

Solid State Relay, Thermal Mounting Pad | MPJA.COM

Maybe they sold out? Anyone else have luck locating a thermal insulating pad solution?

 

[Soundhappy]

@ Chromenuts

Was great bargain price!
Probably other electronic distributors get some available cheap relay thermal pads..www. is Your research friend
My are original Tokin I get luck buy them together with all SIT's

 

[Soundhappy]

Bump watanabetomoaki | eBay

 

[Zen Mod]

is that connected to curve tracer ?

 

[Soundhappy]

Today curve tracer are not on the test equipements list in the near future ?

 

[Zen Mod]

if that is not test with curve tracer ( burst , short in time ) then fact that SIT is not heatsinked is saying everything about test results

to write it clearly : SIT must be heatsinked while testing !

 

[Soundhappy]

Curve traced SIT's at voltage of the working condition amplifier and 15 ~ 20 minuts pre-heat on the heat sink
is the best no doubt here

 

[Zen Mod]

that's nutz

no use with that way of testing ...... even if we don't need absolute precision , border cases are going to be critical that way

one can make any sort of clamps , to avoid scratches ...... even hand pressure on heatsink is better than nothing ( even if tiresome)

 

[Soundhappy]

Visibly learn more about good matching conditions be useful for the seller who ask more money.
Mounted on the heatsink and warm transistor at the same temperature for ~ 15 minutes.
Hope he does serious tests. The curve traced pairs is the optimal solution..

 

[Zen Mod]

no need for 15min, from my experience

it's clearly visible on DVM when part is in thermal equilibrium ..... pretty fast , in fact ... less than minute

however , if one is asking for absolute precision , more (time) is merrier , with exact control of heatsink temperature

 

[Soundhappy]

Seller test's are more about " OK is correctly working " transistor.
Nothing more really is guaranteed

 

[Soundhappy]

THF-51S is out off stock , visibly only 500 Watt's 2SK182ES is still available from Watanabetomoaki san.
watanabetomoaki | eBay
You think I find unknow vintage triode transistor from "Origin" Semiconductor Company ?
Not at all , is a single diode package who looks like small "blue sky" SIT

 

[Soundhappy]

Today is 4 years birthday
about the news of Tokin 2SK180
watanabetomoaki | eBay

 

[Nelson Pass]

You will be happy to know that some progress has been made.

Remaining SIT-1 transistors are in SIT-3 amplifiers.

About 400 Sony Vfet channels are being prepared for introduction
in the diyAudio store.

Designs around remaining THF-51 and 2SK182 are in development.

Researchers at UC Davis (my alma mater) have developed new SIT using
Gallium Nitride.

 

[Soundhappy]

Designs around remaining THF-51 and 2SK182 are in development.

Researchers at UC Davis (my alma mater) have developed new SIT using
Gallium Nitride.

Very interesting news!

 

[Soundhappy]

Researchers at UC Davis (my alma mater) have developed new SIT using
Gallium Nitride.

Do Mr.Pass have link to more informations about SIT GaN semiconductors ?
Or maybe transistor sample on the bench today or in the near future ?
Me find this :
III-Nitride Vertical Transistor with Ion Implantation Formed Aperture Region
- Available technology for licensing from the University of California, Davis
Kind regards

 

[Soundhappy]

https://www.edn.com/design/power-management/4397809/2/Gallium-Nitride--GaN--technology-overview
+1 article : Silicon compare to SIC and GaN technology

 

[Soundhappy]

Designs around remaining THF-51 and 2SK182 are in development.

Extraordinary Thanks Mr.Pass
I am waiting for the teaser in not distant future

 

[twitchie]

This is exciting news for sure! So I guess the next questions are whether or not it will be a patented process and when/if a manufacturer will take up the challenge and turn it into commercially available devices.

You will be happy to know that some progress has been made.

Remaining SIT-1 transistors are in SIT-3 amplifiers.

About 400 Sony Vfet channels are being prepared for introduction
in the diyAudio store.

Designs around remaining THF-51 and 2SK182 are in development.

Researchers at UC Davis (my alma mater) have developed new SIT using
Gallium Nitride.