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mushroom-shaped diode

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yura717

yura717

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Hello there,
I open TCM up. And I can see mushroom-shaped diode / dia about 4-5 mm and 2-3 mm tall/ installed on PCB....
Any idea how called this case type?
Thank you.
 

A photo would help to identify easily. Post a picture
 

What makes you think it's a diode? Maybe it's a mushroom?
 
Many years ago, there were JAN-rated metal cased diodes..........but that was long time ago, like in the late 60s.

But. From your signature:

"facts or figures from which conclusions can be inferred; information"
 

yura717 said:
Hello there,
I open TCM up. And I can see mushroom-shaped diode / dia about 4-5 mm and 2-3 mm tall/ installed on PCB....
Any idea how called this case type?
Thank you.
Click to expand...

Is this TCM for Traditional Chinese Medicine? or Traction Control Motor? or??

Is it ceramic or metal?
Like a coin cell or button battery??
 

its Allison TCM /transmission control module/

- - - Updated - - -

03 7193 0034 numbers located on the top
Manufacture company is On Semiconductor
its metal ...
 
Last edited:

Tomorrow I will make picture. Thank you, guys

- - - Updated - - -

Here is . Thank you, guys
 

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Hadn't seen a metal package semiconductor in decades. Definitively a custom part.

The number does not appear as a valid number. Additionally, all the AEC-listed, catalog devices are plastic packaged
 

I checked Package Drawings on onsemi.com .... I cannot find it.
 

Hey it looks like a SMT version of the old TO-18 cans! Very neat.
 

A - about twice shorter ....
and just one "leg" .... but dia about 2.5 mm
 

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