SKU: SENS-3766
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Generic Glass-sealed 100K Ohm NTC 3950 Thermistors 1%

₹17.00 (Inclusive of all taxes)
Out of Stock

This is a precision 100K Ohm NTC 3950 thermistor with a ±1% tolerance, featuring a glass-sealed epoxy encapsulation for stability and interchangeability. It is suitable for temperature sensing and compensation circuits in a wide range of electronic projects, from industrial controls to DIY microcontroller applications.

Features

  • High-precision NTC thermistor with 100KΩ resistance at 25°C and a Beta (B) value of 3950.
  • ±1% tolerance ensures excellent interchangeability and circuit standardization without individual calibration.
  • Glass-sealed epoxy encapsulation provides robust protection against moisture and environmental contaminants.
  • Wide operating temperature range from -80°C to +150°C for versatile applications.
  • Low thermal time constant of 10 seconds for responsive temperature tracking.

Out of stock

Description

This NTC (Negative Temperature Coefficient) thermistor is a precision temperature-sensing component where its resistance decreases predictably as temperature increases. The 3950 Beta value defines its resistance-temperature curve, making it ideal for accurate temperature measurement and compensation in analog and digital circuits. Its glass-sealed, epoxy-coated construction ensures long-term stability and reliability in varying environmental conditions.

Designed for true interchangeability, this thermistor allows designers to standardize temperature sensing circuitry across multiple units or production batches. This eliminates the need for individual circuit trimming and simplifies maintenance, as a failed sensor can be replaced without recalibrating the entire system. Its small form factor and robust build make it suitable for integration into compact and demanding applications.

Key Features

  • Precision 100KΩ NTC thermistor with a tight ±1% tolerance for accurate and repeatable measurements.
  • Glass-sealed epoxy encapsulation offers superior moisture resistance and mechanical protection.
  • Wide operational range from -80°C to +150°C caters to both extreme cold and high-temperature environments.
  • Optimized thermal response with a 10-second time constant for dynamic temperature monitoring.
  • Maximum power rating of 75mW ensures safe operation within standard signal conditioning circuits.
  • True interchangeability feature simplifies design, inventory management, and field replacements.
  • Compact 2mm diameter bead format allows for easy integration into space-constrained assemblies.

Applications

  • Precision temperature monitoring and control in industrial process equipment and HVAC systems.
  • Thermal compensation for oscillators, reference circuits, and sensitive analog electronics.
  • Battery temperature sensing and protection in energy storage and power management systems.
  • Environmental data logging and weather station instrumentation.
  • DIY and educational projects involving Arduino, Raspberry Pi, or other microcontroller platforms for temperature sensing.

Technical Specifications

Item TypeThermistor
Resistance @ 25°C100 kΩ
Tolerance±1%
Beta (B) Value3950
Temperature CoefficientNTC (Negative Temperature Coefficient)
Operating Temperature Range-80°C to +150°C
Thermal Time Constant10 s
Maximum Power Rating75 mW
Dimensions (Diameter)2 mm
Body Length30 mm
EncapsulationGlass-sealed Epoxy

Frequently Asked Questions

What is the Beta (B) value of this thermistor and why is it important?

This thermistor uses a Beta (B) value of 3950, which defines the mathematical relationship between its resistance and temperature over its operating range. The 3950 value is a standard coefficient that allows for accurate temperature calculation using the Steinhart-Hart equation or lookup tables in your microcontroller code, ensuring precise readings across the -80°C to 150°C span.

Can I use this thermistor directly with an Arduino or Raspberry Pi?

Yes, but not directly. The thermistor's resistance change must be converted to a measurable voltage. You will need to create a simple voltage divider circuit using a fixed resistor (e.g., a 100KΩ resistor) and connect the junction point to an analog input pin on your Arduino or Raspberry Pi (via an ADC). You can then use the Beta value and appropriate code libraries to calculate the temperature from the analog reading.

What are the advantages of the glass-sealed epoxy encapsulation?

The glass-sealed epoxy encapsulation provides critical protection against moisture, dust, and chemical contaminants, which can drift the sensor's resistance values over time. This construction ensures long-term stability and reliability, making the thermistor suitable for use in humid, outdoor, or industrial environments where bare thermistor beads would degrade. It also offers improved mechanical strength.

What does 'true interchangeability' mean for this thermistor?

True interchangeability means that any unit within this specific model (100KΩ, B3950, ±1%) can replace another without requiring recalibration of your circuit. The tight tolerance and consistent Beta value guarantee that the resistance-temperature characteristic is nearly identical from one sensor to the next. This simplifies mass production, maintenance, and spare part stocking.

Package Includes

  • 1 x Glass-sealed 100K Ohm NTC 3950 Thermistor (±1%)

Additional Information

Weight 0.01 kg
Dimensions 3 × 0.2 × 0.2 cm