KOKISO NTC Thermistors Resistors MF52 3950K 10 Values 100 PCS Inrush Current Limiter Temperature Sensor Assorted Kit Assortment(1KΩ, 2KΩ, 3KΩ, 4.7KΩ, 5KΩ, 10KΩ, 20KΩ, 47KΩ, 50KΩ,100KΩ)

So far I have only used the 5KΩ thermistor and it is working as it should. The theristors beta value was closer to 3940K for me but for my purpose, this suited me just fine. Item was used to repair a temperature probe used for aquarium water monitoring.

These are great thermistors, but be aware: The devices use a "B" value needed to make them accurate (as with an arduino). The bags, however have labels like "B=3860K". The K should NOT be there! The proper B value would be 3860. If you multiply by the extra 1000... they won't work. I tested an entire cohort (all 10) from one of the bags and they were all within 1/2 deg C...very nice.

Excellent sort of different resistance values

I had planned to use these in vacuum tube radio power supplies to limit inrush current. I could not find any kind of current or power rating but though I'd give it a shot for >$10. I will never use these tiny, tiny things. They will probably explode the first time I put power to them. I am not an engineer and have not had to select this component before. I was looking at replacing increasingly hard to find rectifier tubes with modern diodes. These Tiny, tiny, tiny things that I expect are rated for microwatts, should have been ordered from Mouser or Digikey.

Seems very accurate

Great product for the price

The stated tolerance by the supplier is plus or minus 5%. Every one of the thermistors in this pack was way out of tolerance. In the picture you can see that the 47K ohm thermistor is measured at 61.1K ohms. That’s a 23% tolerance by my calculation!

I have a battery bank that I was fixing, and looks like I cut the thermistor when I was removing the lithium pack. I couldn't find the correct measurement so I got this kit and tried couple of them, until the battery bank wont throw error as "too cold" or "too hot" :D