Hotend Thermister Replacement Part

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Bill

(@bill-2)

Active Member

Hotend Thermister Replacement Part

Can someone confirm that the CORE One hotend thermister is the "Thermister NTC 100k-260mm" listed in the store. Or is this one for a different purpose?

Link: https://www.prusa3d.com/product/thermistor-ntc-100k-260-mm/

I don't know what an NTC thermister is, but the Prusa store apparently thinks I should.

Many thanks!

Best Answer by ssmith:

I've just been through this - the 260mm unit is for the chamber temperature. The hotend thermistor is shorter - you can use either the 90mm or 115mm long one .

-- edits for formatting --

Posted : 29/03/2026 7:13 pm

mnentwig

(@mnentwig)

Honorable Member

RE: Hotend Thermister Replacement Part

It's correct, and you can confirm this yourself below the picture. There are two colored boxes "Core One" and "Core One L". Then "not compatible with" and a long list of printers. So those two are "compatible".

Posted : 29/03/2026 7:38 pm

ssmith

(@ssmith)

Estimable Member

RE:

I've just been through this - the 260mm unit is for the chamber temperature. The hotend thermistor is shorter - you can use either the 90mm or 115mm long one .

-- edits for formatting --

This post was modified 7 hours ago 2 times by ssmith

Posted : 29/03/2026 8:22 pm

mnentwig

(@mnentwig)

Honorable Member

RE: Hotend Thermister Replacement Part

thanks for the correction!

Posted : 29/03/2026 8:30 pm

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