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RioRand(TM) Upgraded 10 pcs 100Kohm NTC Thermistors thermistor,temperture sensor,Reprap,Prusa 3D printer
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Specifications for this item
|Part Number||RR10x100Kohm NTC|
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Item:NTC Thermistor Model:B2-100-3950-1 R @ 25: K 100K-1% B25/50:K 3950-1% Element:Thermistor,type MJB2 Characteristics (1) Electrical characteristics A: Resistance value: R（25°C）=100K±1% B: B Value: B=3950±1% (calculated from resistance value at 25°C and 50C) C: Insulation resistance 50MΩ or over by DC500V megger (between glass and lead wire) (2) Thermal time constant (τ): τ≤10～17s (in still air) (3) Thermal dissipation constant (δ): δ=1.1～1.6mW/°C (in still air) (4) Operating temperature range:-50～+260°C Outgoing Inspection The product shall be inspected at every delivery lot inspection items,sampling quantities and sampling acceptable standard are as follows. Inspection Item Sampling acceptable standard Remarks Resistance value n=20, Ac=0, Re=1 2.3(1)(a) B-value n=10, Ac=0, Re=1 2.3(1)(b) Insulation Resistance n=5, Ac=0, Re=1 2.3(1)(c) Shape & Dimension n=5, Ac=0, Re=1 2.2 Appearance n=5, Ac=0, Re=1 2.2 Package Include: 10pcs 100Kohm NTC Thermistors
Top Customer Reviews
It is nice to have a few spares on hand for new projects.
I have built a couple hotends so far and have swapped them without re-calibration of control firmware. So they are consistent one to one.
These thermistors were some of the best I got. The head is pretty sturdy, so you don't need to worry about breaking them just by looking at them, like some other shoddy thermistors you buy. The upside to this is that you can handle them a bit easier and can install them quicker. 3D printer people will understand the frustration behind installing thermistors. With other ones bought from china on ebay, I broke 4 in a pack of ten just by basic handling. These are ten times better.
The reason I am giving four stars instead of five is that they are slightly shorter than other thermistors I bought of the same type. They were calibrated well, but I wish they came with longer connections. Still a great buy. Better than any others I've tried, I'd highly recommend them.
Settings 1 and 6 (EPCOS) did not work, they had room temperature as -25C
to toughen these up, I epoxy them (jb weld) into a small brass tube that fits onto my hot end with a setscrew after putting the ptfe sleeves and heatshrink on
Reading 5 degrees low at 200C according to my IR thermometer, which is has a +/- 4C error at that temperature. The other thermistor profiles I tested were off by 25-50C at 200C. Should be plenty accurate enough to get good prints.
No where did it say in the description that it is meant for marlin or a specific setting in marlin so cant really say it was false advertising but I bet if everyone that posted reviews checked their temps with a good thermometer they would find them off.
Now that I have spent several days calibrating them i can finally get wood grain effects in my wood filament.
see[...] for the settings that I found to work.
Most Recent Customer Reviews
Slightly farther off spec than advertised but functional for printing.Published 1 month ago by Justin Fletchall
Little buggers are quite accurate! Easy to hook up to Arduino.Published 3 months ago by Amazon Customer
All 10 in this pack measure between 90 and 94K. Not 100K. I tried every setting in my printer's firmware and the extruder reads 90C at room temp.Published 5 months ago by Amazon Customer
did not fit in the hotend hole on the block..
not sure if these are the epcos or something else. first print with this i set for 180 it came out black burnt goo.
This is a type 60 thermistor in Marlin: 100k Maker's Tool Works Kapton Bed Thermistor beta=3950Published 16 months ago by Bucky's Mom