Timeline for Generic thermal resistance values for a heatsink
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| S Apr 2 at 13:27 | vote | accept | Klumpy7 | ||
| Apr 2 at 13:24 | answer | added | Spehro 'speff' Pefhany | timeline score: 1 | |
| Apr 2 at 13:12 | vote | accept | Klumpy7 | ||
| S Apr 2 at 13:27 | |||||
| Apr 2 at 12:18 | comment | added | 比尔盖子 | @Klumpy7 Simple solution. Step 1: Go to Farnell, DigiKey, Mouser, RS, etc. Step 2: Find a few heatsinks that looks similar to the no-name one on Amazon, and check their thermal impedances. Problem solved. | |
| Apr 2 at 12:08 | answer | added | Andy aka | timeline score: 0 | |
| Apr 2 at 12:04 | comment | added | SteveSh | What do you want to keep below a 50 deg C rise above ambient? The junction temperature (probably not)? The case temperature? The heat sink temperature? | |
| Apr 2 at 11:55 | history | edited | Klumpy7 | CC BY-SA 4.0 |
added 8 characters in body
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| Apr 2 at 11:54 | comment | added | Klumpy7 | Yes, sorry that was not clear in the question. | |
| Apr 2 at 11:51 | comment | added | Andy aka | I changed my comment having re-read your question. Are you saying you will emit 80 watts in heat? | |
| Apr 2 at 11:50 | comment | added | Klumpy7 | 80W of heat output is the absolute maximum (minimum voltage and maximum current output), not a common scenario for me, normal will probably be half that. | |
| Apr 2 at 11:50 | comment | added | Andy aka | How much heat power is going to be produced worst case working? | |
| Apr 2 at 11:45 | comment | added | Klumpy7 | You have a fair point, but I would just like some numbers to get into my head so I can understand what scales I’m working on, and what to expect from a heatsink or heatsink/fan combination, and a rough idea of sizes I need to work with here | |
| Apr 2 at 11:42 | comment | added | Andy aka | Please don't use amazon for this. Use a proper supplier like Farnell, DigiKey, Mouser, RS etc.. They will all provide full information and data sheets that cover material, dimensions and thermal resistance. Additionally, you get quality traceability using a recognized distributor. You get none of the above buying from amazon, ebay, aliexpress etc.. That one from Amazon says it includes a memory stick in the spec and, for an absolute certainty, that is ridiculous. | |
| Apr 2 at 11:39 | history | asked | Klumpy7 | CC BY-SA 4.0 |