The B3950 10K NTC Thermistor Temperature Sensor is a waterproof, high-precision sensor designed for reliable temperature monitoring in various electronic applications. With a robust stainless-steel probe measuring 5×25mm and a 0.5-meter cable featuring an XH2.54 connector, it ensures ease of integration with microcontroller and development boards.
This thermistor uses a Negative Temperature Coefficient (NTC), meaning its resistance decreases as temperature increases. Due to its non-linear response, using a resistance-to-temperature lookup table from the datasheet is typically more accurate than a simple linear equation, making it ideal for precise measurements in DIY, industrial, and academic projects.
🔧 Key Features
- High-precision 10K NTC Thermistor (B3950)
- 5mm x 25mm stainless steel waterproof probe
- 0.5-meter cable with pre-attached XH2.54 2-pin connector
- Wide temperature sensing range for diverse applications
- Simple plug-and-play connection to microcontrollers
- Durable, sealed construction for rugged environments
📐 Technical Specifications
| Product Name | B3950 10K NTC Thermistor Temperature Sensor |
| Type | NTC Thermistor |
| Resistance | 10K Ohm ±1% |
| B Value | 3950K ±1% |
| Temperature Range | -55°C to +125°C |
| Probe Dimensions | 5mm x 25mm |
| Connector | XH2.54 2-pin |
| Cable Length | 0.5 Meter |
| Waterproof | Yes |
| Material | Stainless Steel Probe + PVC Wire |
| Usage | Digital temperature sensing applications |
📌 Applications
- Temperature monitoring for 3D printers or heated beds
- Smart farming and environmental sensing
- Battery temperature regulation systems
- DIY electronics and Arduino projects
- Waterproof temperature detection for aquariums or fluid systems

💡 Why Choose This Sensor?
The B3950 10K NTC Thermistor combines accuracy, reliability, and simplicity in a waterproof form factor. Whether you’re a maker, student, or engineer, this sensor simplifies your setup while ensuring dependable temperature tracking across a wide range of use cases.
📦 Package Includes
- 1 × B3950 10K NTC Thermistor Temperature Sensor (5×25mm, 0.5m Cable)















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