The NTC 3950 100K Thermistor Sensor is a highly accurate temperature-sensing component widely used in 3D printers, industrial equipment, electronics projects, and temperature control systems. This negative temperature coefficient sensor decreases in resistance as temperature increases, providing precise thermal measurement across a wide operating range. Equipped with a 1-meter cable and a convenient Dupont connector, it is compatible with most 3D printer motherboards such as Creality, Ender, CR Series, Anet, Prusa, and DIY controllers. Ideal for hotend, heated bed temperature detection, and embedded temperature monitoring applications.

Features:

• High-precision NTC 3950 100K thermistor for accurate temperature measurement

• Designed for 3D printer hotend and heated bed temperature reading

• Wide temperature measurement range from –40℃ to +300℃

• Pre-wired with 1m cable for easy installation and routing

• Standard Dupont connector for plug-and-play compatibility

• Stable thermal response suitable for high-temperature operations

• Excellent resistance accuracy for consistent temperature control

• Suitable for multiple electronics and industrial temperature sensing applications

• Compact, durable, and reliable for long-term use

• Works with most open-source and commercial 3D printer control boards

How to Use:

• Connect the Dupont connector directly to the thermistor port on your 3D printer mainboard

• Place the thermistor inside the hotend block or attach it securely to the heated bed

• Ensure proper insulation for accurate temperature reading

• Configure the printer firmware if required (normally set to 100K NTC 3950)

• Perform a temperature calibration or test heating cycle

• Avoid bending the thermistor tip excessively to prevent damage

Application Instructions:

• Suitable for hotend temperature sensing

• Suitable for heated bed temperature sensing in FDM 3D printers

• Can be used in incubators, temperature controllers, ovens, heaters, battery packs

• Ideal for DIY electronics and Arduino-based temperature measurement projects

• Keep away from direct flame or extremely rapid heating to maintain sensor accuracy

• Ensure proper contact between sensor tip and the target surface for best results

Safety Instructions:

• Do not exceed the maximum rated power of 45mW

• Avoid pulling or stretching the cable excessively

• Do not expose the sensor to corrosive chemicals

• Use heat-resistant insulation when mounting in high-temperature zones

Specifications:

• Model: NTC 3950 100K Thermistor

• Resistance Accuracy: ±1%, ±2%, ±3%

• B Value Accuracy: ±1%

• Temperature Range: -40℃ to +300℃

• Max Rated Power: 45mW

• Resistance Temperature Coefficient: -2% to -5% per ℃

• Recommended Parameters: R25℃ = 100K, B25/50 = 3950K (±1%)

• Cable Length: 1 meter

• Connector Type: Dupont

• Usage: Hotend, heatbed, temperature sensing, electronics projects

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