{"product_id":"ntc-mf58-thermistor-3950b-5k-10k-50k-100k-ohm-glass-sealed-20pcs","title":"20PCS NTC MF58 Thermistor 3950B 5K 10K 50K 100K Ohm Glass","description":"\u003ch2\u003e20-Pack NTC MF58 Glass-Sealed Thermistors – Precise Temperature Sensing for DIY \u0026amp; Professional Electronics\u003c\/h2\u003e\n\u003cp\u003eGet reliable, accurate temperature sensing with this 20-piece set of \u003cstrong\u003eNTC MF58 3950B Thermistors\u003c\/strong\u003e by NioCen. These glass-sealed, through-hole thermal resistors are engineered for stable performance across a wide range of resistance values — available in \u003cstrong\u003e5K, 10K, 50K, and 100K Ohm\u003c\/strong\u003e — making them ideal for temperature measurement, compensation, and control circuits in both hobbyist and professional applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack of 20:\u003c\/strong\u003e Excellent value — enough units for multiple projects or prototypes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MF58 | B-Value: 3950 | Resistance Tolerance: ±5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Resistance Options:\u003c\/strong\u003e Choose from 5K, 10K, 50K, or 100K Ohm to match your circuit requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlass Sealed Package:\u003c\/strong\u003e Durable encapsulation protects the sensing element from moisture and contaminants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrough-Hole (THT) Package:\u003c\/strong\u003e Compatible with standard PCB layouts and breadboards for easy integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNTC (Negative Temperature Coefficient):\u003c\/strong\u003e Resistance decreases as temperature rises — perfect for temperature detection and feedback loops\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concerned Chemicals:\u003c\/strong\u003e None — safe for general use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature measurement and monitoring circuits\u003c\/li\u003e\n  \u003cli\u003eArduino, Raspberry Pi, and other microcontroller projects\u003c\/li\u003e\n  \u003cli\u003eHVAC and home automation systems\u003c\/li\u003e\n  \u003cli\u003eBattery management and thermal protection circuits\u003c\/li\u003e\n  \u003cli\u003e3D printer hotend and heated bed temperature sensing\u003c\/li\u003e\n  \u003cli\u003ePower supply and motor driver thermal compensation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNioCen\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMF58\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3950\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance Values\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5K \/ 10K \/ 50K \/ 100K Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThrough Hole (THT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncapsulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass Sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 Pieces per lot\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What resistance value should I choose – 5K, 10K, 50K, or 100K Ohm?\u003c\/h4\u003e\n\u003cp\u003eA: The most commonly used value for general-purpose temperature sensing (such as in 3D printers and Arduino projects) is the \u003cstrong\u003e10K Ohm NTC MF58 thermistor\u003c\/strong\u003e. The 5K variant suits lower-impedance circuits, while 50K and 100K are better suited for high-impedance input stages or low-power applications. Always match the thermistor resistance to your circuit's pull-up resistor and ADC range for best accuracy.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these NTC MF58 thermistors compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The MF58 through-hole NTC thermistors are widely compatible with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms. Simply connect them in a voltage divider circuit with a matching resistor, read the analog voltage, and use the B-value (3950) in the Steinhart-Hart or Beta equation to calculate temperature.\u003c\/p\u003e\n\u003ch4\u003eQ: What does \"glass sealed\" mean and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: Glass sealed means the NTC sensing element is encapsulated in a small glass bead or tube, protecting it from humidity, dust, and oxidation. This construction improves long-term stability and makes the thermistor more resilient in slightly harsh or variable environments compared to resin-coated alternatives.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use these thermistors in a 3D printer?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The NTC MF58 3950B 100K Ohm thermistor is one of the most popular choices for 3D printer hotend and heated bed temperature sensing. When configuring your firmware (e.g. Marlin), select thermistor type 11 or the appropriate MF58 3950 profile for accurate readings.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What resistance value should I choose – 5K, 10K, 50K, or 100K Ohm?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The most commonly used value for general-purpose temperature sensing (such as in 3D printers and Arduino projects) is the 10K Ohm NTC MF58 thermistor. The 5K variant suits lower-impedance circuits, while 50K and 100K are better suited for high-impedance input stages or low-power applications. Always match the thermistor resistance to your circuit's pull-up resistor and ADC range for best accuracy.\"}}, {\"@type\": \"Question\", \"name\": \"Are these NTC MF58 thermistors compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The MF58 through-hole NTC thermistors are widely compatible with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms. Simply connect them in a voltage divider circuit with a matching resistor, read the analog voltage, and use the B-value (3950) in the Steinhart-Hart or Beta equation to calculate temperature.\"}}, {\"@type\": \"Question\", \"name\": \"What does \\\"glass sealed\\\" mean and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Glass sealed means the NTC sensing element is encapsulated in a small glass bead or tube, protecting it from humidity, dust, and oxidation. This construction improves long-term stability and makes the thermistor more resilient in slightly harsh or variable environments compared to resin-coated alternatives.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use these thermistors in a 3D printer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The NTC MF58 3950B 100K Ohm thermistor is one of the most popular choices for 3D printer hotend and heated bed temperature sensing. When configuring your firmware (e.g. Marlin), select thermistor type 11 or the appropriate MF58 3950 profile for accurate readings.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"20PCS NTC MF58 Thermistor 3950B 5K 10K 50K 100K Ohm Glass\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/ntc-mf58-thermistor-3950b-5k-10k-50k-100k-ohm-glass-sealed-20pcs\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"MF58-10K","offer_id":44167816642647,"sku":"696:202391806#MF58-10K","price":6.83,"currency_code":"USD","in_stock":true},{"title":"MF58-50K","offer_id":44167816675415,"sku":"696:202391807#MF58-50K","price":6.83,"currency_code":"USD","in_stock":true},{"title":"MF58-5K","offer_id":44167816708183,"sku":"696:201215958#MF58-5K","price":6.47,"currency_code":"USD","in_stock":true},{"title":"MF58-100K","offer_id":44167816740951,"sku":"696:200000170#MF58-100K","price":6.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S41716668a76441bab74f7409ef8945c8r.webp?v=1786764070","url":"https:\/\/axlcustomersupport.com\/products\/ntc-mf58-thermistor-3950b-5k-10k-50k-100k-ohm-glass-sealed-20pcs","provider":"Axl","version":"1.0","type":"link"}