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Electronics => Beginners => Topic started by: japasetelagoas on September 25, 2017, 04:48:09 pm

Title: What to do with fifty 15kR - 50W power resistors?
Post by: japasetelagoas on September 25, 2017, 04:48:09 pm
Hey everyone,
I've seen a carbox with maybe 50 Dale power resistor in the junkyard, is there anything useful that could be done with these resistors?

Maybe a dummy load or something else?

15kR - 50W - 1%

Thanks

(https://i.imgur.com/N5mOrAh.jpg)
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: kalel on September 25, 2017, 05:27:37 pm
I guess that to reach the power rating a high voltage would be needed. Of course, then a heatsink is needed also. I'm not sure how many W you could dissipate without adding anything.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: edavid on September 25, 2017, 05:38:17 pm
Quote from: kalel on September 25, 2017, 05:27:37 pm
I guess that to reach the power rating a high voltage would be needed. Of course, then a heatsink is needed also. I'm not sure how many W you could dissipate without adding anything.

Here's the datasheet: https://www.vishay.com/docs/50013/rh.pdf (https://www.vishay.com/docs/50013/rh.pdf)

The unmounted power rating is 12W @ 25C.

Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: ElektroQuark on September 25, 2017, 05:41:39 pm
A 300R 2500W resistor?
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: Benta on September 25, 2017, 05:44:51 pm
Dunno what you mean by "15kR". Those are 1 ohm resistors and can come in extremely useful as dummy loads. Especially as they are 1% tolerance. Go for it.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: ElektroQuark on September 25, 2017, 05:46:18 pm
15kR -> 15K Ohm

The image must be a generic one.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: japasetelagoas on September 25, 2017, 08:08:46 pm
Quote from: EdoNork on September 25, 2017, 05:46:18 pm
15kR -> 15K Ohm

The image must be a generic one.

Exactly.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: innkeeper on September 27, 2017, 01:20:29 am
i have a crap load of precision resistors and caps. maybe we can do some trading if it helps your parts inventory, if your reasonable distance from me and it makes economic sense.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: tpowell1830 on September 27, 2017, 01:26:17 am
Quote from: japasetelagoas on September 25, 2017, 04:48:09 pm
Hey everyone,
I've seen a carbox with maybe 50 Dale power resistor in the junkyard, is there anything useful that could be done with these resistors?

Maybe a dummy load or something else?

15kR - 50W - 1%

Thanks


Better grab all you can, those are not cheap. Someday you will find a use for some of them. Give some away on the forum, or sell them.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: bjcuizon on September 27, 2017, 03:03:53 am
Make a 50 ohm HF dummy load if you got more than 50 resistors. :D
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: Ian.M on September 27, 2017, 03:27:42 am
3.5W dissipation at 230V means they'd be useful as an anti-condensation heater for small mains powered enclosures.
Title: Re: What to do with fifty 15kR - 50W power resistors?
Post by: innkeeper on September 27, 2017, 04:05:01 am
heaters for a 3d printer heated bed?
Fishing weights?
slingshot ammo?
throw them under your tire for extra traction when stuck in the winter time.
non environmentally friendly replacement for water skipping stones.