Depleted Teccor Triacs: 3110, 2010 6V, 3150 7V

Semiconductor
1

Hi. I have the following triacs that are made by Teccor and I’m trying to seek for replacement. I have boards that have the “3110” triac to be in a TO-220 package (albeit I have yet to have one fail), but I’m asking here just in case if one of them fails. A “3150” marked with “7V” on the metal tab in package TO-202 and 3 “2010” marked with “6V” on the metal tab in package TO-202. Is there any replacements for those available elsewhere? Thanks.

IMG_20241216_150333089_HDR
IMG_20241216_150333089_HDR1920×843 122 KB

Teccor 3150 1
Teccor 3150 11920×843 119 KB

IMG_20250915_164430494_HDR
IMG_20250915_164430494_HDR1920×843 115 KB

IMG_20251003_085945812
IMG_20251003_0859458121920×843 151 KB

2

Hello AdinPanthers,

Thank you for posting in the TechForum.

I did some looking, but I couldn’t find anything that would easily be a drop in. Maybe one of our other people will be able to help more.

3

Hello @AdinPanthers,

Here is what I can tell you:

  • The symbol is Teccor which is now part of Littlefuse.

  • The parts appear are likely obsolete as seen in this list.

Hopefully your or another reader will be able to use this clue to locate the substitutions.

Have a good weekend,

Aaron

4

I just tested those triacs using diode on the multimeter just to get its reading. Numbers are rounded up.

2010: .53
3110: .06
3150: .38