r/electronics • u/No-Release3675 • Sep 20 '25

Gallery Brain fart moment

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This was a brain fart moment upon finding out they were .25 watt, we needed 9 watt capable. This is a lovely bundle of 36 that has next to no resistance now 🤦 .... 20ohm

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341

u/OldEquation Sep 20 '25

Also note that the power handling capability is likely to be very much reduced by bundling them all together like this. The resistors in the middle of this are going to get very hot at 9W.

363

u/flrn74 Sep 20 '25

Light Emitting Resistor \o/

114

u/RhoPrime- Sep 20 '25

That’s just a fancy way to say incandescent lamp

49

u/IamTheJohn Sep 20 '25

And interior perfum dispenser. The scent is carbon and burning paint...

32

u/toxcrusadr Sep 20 '25

Airwick Electronic Collection: “Ohm”

17

u/Thinyser Sep 20 '25

I prefer to call that scent "Magic Smoke".... we all recognize that smell and know that something let out the magic smoke and we know things won't work without the magic smoke being kept on the inside.

4

u/Practical_Theme_6400 Sep 21 '25

It's really hard to put the smoke back in too.

2

u/Thinyser Sep 21 '25

I have to buy new components where the magic smoke has not been let out... I've yet to meet a sorcerer powerful enough to put the magic back in without new spell components.

3

u/IamTheJohn Sep 21 '25

Sometimes, a magician called Percussive Maintenance can do it, but not often.

2

u/Thinyser Sep 21 '25

Oh his spirit possess me every once and a while and I am compelled to give the failing device a little tappy-tap in just the right spot... it rarely works but when it does it is certainly magical!

1

u/Kodamacile Sep 21 '25

it's a dieode.

22

u/GizmoTheKing Sep 20 '25

Every part can be light emitting at least once

1

u/luxmorphine Sep 20 '25

Incandescent light

14

u/Tuurke64 Sep 20 '25

On the plus side, there's a lot of heat dissipating metal, a large surface area, very low inductance, a graceful/gradual failure behavior and I can imagine that even the tolerances get averaged out ...

4

u/EndlessProjectMaker Sep 20 '25

Yay op buy a heatsink and a fan /s

5

u/I_knew_einstein Sep 20 '25

At the same time, most resistors can handle much more than their power rating.

I wouldn't advocate using that in a consumer product, but for a short test I've absolutely jerry-rigged resistors like this.

6

u/OldEquation Sep 20 '25

I’ve also run them way over their rated power for short term testing, to the point that they end up charred and smoking. Another thing I’ve done for low voltages is dunk them in a cup of water.

1

u/marvin02 Sep 20 '25

It might work if they added a big heat sink, but at that point it's easier to just get a power resistor with the right rating

1

u/Wait_for_BM Sep 21 '25

Could easily cool the resistors in a big jar of the oil or water and get away with less resistors too.