EPCOS NTC thermistors provide precise temperature sensing with high sensitivity to temperature changes. These temperature-dependent resistors feature negative temperature coefficients, meaning their resistance decreases as temperature increases, making them ideal for temperature measurement and compensation applications.

Our NTC portfolio features resistances from 10Ω to 10MΩ at 25°C with various B-values to match different temperature curves. The devices are manufactured using advanced ceramic processing techniques that provide excellent stability and accuracy over extended operational periods.

Key Applications

• Temperature monitoring in power electronics
• Motor protection and control
• Automotive climate control systems
• Consumer appliance temperature control
• Industrial process control
• Medical equipment temperature monitoring

Popular Series

• B57163*: Radial leaded devices for through-hole mounting
• B57330*: SMD devices for automated assembly
• B57310*: High-precision measurement devices
• B57863*: High-temperature applications

Selection Considerations

Important parameters when selecting NTC thermistors include base resistance at 25°C, B-value, tolerance, thermal time constant, and power dissipation rating. The appropriate device selection depends on the required accuracy, temperature range, and response speed needed for the specific application.

EPCOS PTC thermistors exhibit a positive temperature coefficient, providing a sharp increase in resistance at a specific Curie temperature. This characteristic makes them ideal for temperature detection, protection, and resettable switching applications. Their self-limiting current property also makes them useful for self-regulating heating applications.

Our PTC thermistors are engineered with precise Curie temperatures ranging from below freezing to over 200°C, allowing for accurate temperature detection at specific thresholds. The devices maintain stable performance over thousands of thermal cycles with minimal degradation.

Primary Applications

• Overtemperature protection in motors and transformers
• Self-regulating heating elements
• Temperature switches in thermostats
• Current limiting in power supplies
• Flow sensing and level detection
• Automotive temperature sensing

Key Series

• B59400*: General-purpose PTC devices
• B59300*: High-temperature PTC solutions
• B59100*: SMD PTC for automated assembly
• B59200*: High-current PTC for heating applications

Advantages

PTC thermistors offer several advantages including resettable operation (after removing the thermal stimulus), reliable switching characteristics at specific temperatures, and the ability to self-limit current in heating applications. These characteristics make them suitable for safety-related applications where a predictable and reproducible response is critical.

EPCOS environmental sensors encompass a variety of specialized sensing devices for temperature, humidity, pressure, and other environmental parameters. These sensors provide accurate and stable measurements for industrial automation, building management, automotive, and consumer applications.

Our environmental sensors utilize advanced materials and manufacturing processes to provide consistent performance across wide temperature ranges and extended operational periods. Specialized packages and connection options support integration into various system configurations.

Application Areas

• Climate control and HVAC systems
• Environmental monitoring stations
• Industrial process monitoring
• Automotive cabin control systems
• Food storage and processing monitoring
• Medical environmental controls

Technology Options

• High-stability ceramic NTC elements
• Compensated digital output devices
• Hermetically sealed packages
• Fast-response elements for dynamic measurements

Integration Benefits

Environmental sensors from EPCOS are designed for simple integration into monitoring and control systems. With stable response characteristics and reliable operation over long periods, these sensors reduce maintenance requirements and ensure consistent measurement performance.

EPCOS offers specialized sensor solutions engineered for specific application requirements. These sensors incorporate customized resistance curves, specialized packages, and unique performance characteristics to meet the precise needs of particular applications.

Our application engineering team works directly with customers to develop sensors that meet unique requirements including specific resistance-temperature curves, customized packages, special lead materials, or enhanced performance characteristics.

Customization Options

• Custom resistance-temperature curves
• Specialized packages and mounting methods
• Modified physical dimensions
• Specialized materials for harsh environments
• Unique electrical characteristics
• Custom calibration options

Development Process

Our development process starts with understanding your specific application requirements through collaboration with your engineering team. We leverage our extensive material science expertise to develop solutions that meet your requirements while maintaining the reliability and quality standards of the EPCOS brand.

Prototype development and validation are performed in our advanced facilities with full testing capabilities. Once validated, we transition to production ensuring consistent quality and availability for your production requirements.

Application Examples

• Specialized NTC for medical temperature monitoring
• High-temperature PTC for automotive exhaust systems
• Humidity sensors for industrial ovens
• Pressure sensors for specialized applications