Thermally coupling two TO-92 transistors.
In some cases you need to get 2 TO-92 transistors to track thermally.
This is easily done by inserting the 2 cases into one end of a piece of 6.0 mm heat-shrink sleeving and heating it slowly.
I normally hold it around 10 mm above a hot soldering iron for 5..10 minutes.
Do not use more heat than that (like a paint-stripper) as it is very likely the transistors will be destroyed.
For optimal thermal contact, use a little non-conductive compound.
If it is 2 different transistor types, cut one lead on one of them a little shorter so you know the pin-out of the assembly.
If you use more than one type of assembly for a project, use different colored tubing.
Fig.1: Transistors after shrinking the tubing.
Fig.2: Transistors after cutting away excessive tubing.
This web-page, including but not limited to all text, drawings and photos, is the intellectual property of Poul Petersen, and is Copyright ©.
Reproduction or re-publication by any means whatsoever is strictly prohibited under International Copyright laws.
The author grants the reader the right to use this information for personal use only.
Any commercial use is prohibited without express written authorization from Poul Petersen.
The information is provided on an "as-is" basis and is believed to be correct, however any use of the information is your own responsibility.
This web-site may contain links to web-sites outside Poul Petersen domain ( www.poulpetersen.dk ).
Poul Petersen has no control over and assumes no responsibility for the content of any web-site outside Poul Petersen own domain.
Poul Petersen notes index
Poul Petersen diy index
|Copyright © Poul Petersen 2016..2019. Last update: 20191029.||Valid HTML!|