{"product_id":"thermistor-100k-ohm-ntc-3950","title":"Thermistor 100K ohm NTC 3950","description":"\u003cp\u003e\u003cstrong\u003e100K NTC 3950 thermistor for 3D-printer hotends and heated beds.\u003c\/strong\u003e A common RepRap-style temperature sensor with \u003cstrong\u003e100KΩ resistance at 25°C\u003c\/strong\u003e, \u003cstrong\u003eB25\/50 3950K\u003c\/strong\u003e, and a \u003cstrong\u003e1m lead\u003c\/strong\u003e for replacing or building a standard printer temperature input.\u003c\/p\u003e\n\u003ch3\u003eWhy use this thermistor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware-friendly spec:\u003c\/strong\u003e 100K NTC \/ B3950 is one of the standard thermistor profiles used across Marlin, Klipper, and RepRap-style printer builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral hotend or bed sensing:\u003c\/strong\u003e use it where your controller and firmware expect a 100K B3950 NTC sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1m cable:\u003c\/strong\u003e enough reach for most toolhead and small heated-bed wiring paths without adding an immediate splice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSensor type: \u003cstrong\u003eNTC thermistor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNominal resistance: \u003cstrong\u003e100KΩ at 25°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB-value: \u003cstrong\u003e3950K\u003c\/strong\u003e (B25\/50 family)\u003c\/li\u003e\n\u003cli\u003eCable length: \u003cstrong\u003e1m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse case: 3D-printer hotend, heated bed, chamber, or general temperature-sensor input where a 100K B3950 thermistor is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWorks as a replacement sensor for printer builds configured for a \u003cstrong\u003e100K NTC 3950\u003c\/strong\u003e thermistor.\u003c\/li\u003e\n\u003cli\u003ePair it with a \u003ca href=\"https:\/\/dfh.fm\/products\/heater-cartridge-24v-40w\"\u003e24V 40W heater cartridge\u003c\/a\u003e when rebuilding a standard hotend heater block.\u003c\/li\u003e\n\u003cli\u003eFor higher-temperature hotends, compare against the \u003ca href=\"https:\/\/dfh.fm\/products\/high-temperature-thermistor-ht-ntc100k\"\u003eHT-NTC100K high-temperature thermistor\u003c\/a\u003e before choosing this standard sensor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat it is not\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot a PT100 or PT1000 RTD sensor; use firmware settings for \u003cstrong\u003e100K NTC B3950\u003c\/strong\u003e, not RTD settings.\u003c\/li\u003e\n\u003cli\u003eNot a cartridge-style thermistor unless your heater block accepts this probe style.\u003c\/li\u003e\n\u003cli\u003eDo not use it above the temperature limit of your specific sensor construction, wire insulation, or connector.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dfh.fm","offers":[{"title":"Default Title","offer_id":39656232026281,"sku":"CHAO-0000178","price":2.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/formosissima.myshopify.com\/products\/thermistor-100k-ohm-ntc-3950","provider":"dfh.fm","version":"1.0","type":"link"}