Temperature Sensors - PTC Thermistors
Temperature Sensors - PTC Thermistors
Definition:
PTC (Positive Temperature Coefficient) Thermistors are a specialized type of temperature sensor that exhibit a predictable increase in electrical resistance as temperature rises. These components are widely used for temperature sensing, monitoring, and control in various industrial, automotive, and consumer applications. PTC thermistors are known for their reliability, fast response times, and self-regulating properties, making them ideal for overcurrent protection and temperature compensation circuits.
Types of PTC Thermistors:
1. Ceramic PTC Thermistors Commonly used for overcurrent protection and self-regulating heaters due to their sharp resistance jump at a specific temperature.
2. Polymer PTC Thermistors (PPTC) Often employed in resettable fuses and circuit protection devices, offering flexibility and durability.
3. Silicon PTC Thermistors Provide linear resistance-temperature characteristics, suitable for precision temperature measurement.
4. Surface-Mount PTC Thermistors Designed for compact PCB applications where space efficiency is critical.
Buying Recommendations:
When selecting PTC thermistors, consider the following factors:
- Temperature Range: Ensure the thermistor operates within your application s required temperature limits.
- Resistance-Temperature Curve: Choose between switching-type (sharp resistance change) or linear-type PTCs based on your control needs.
- Accuracy & Stability: High-precision applications may require thermistors with tight tolerance and long-term stability.
- Mounting Style: Select through-hole, surface-mount, or probe-style thermistors based on your assembly requirements.
- Certifications: Check for industry-standard certifications (UL, RoHS, AEC-Q200 for automotive) if compliance is necessary.
PTC thermistors offer a cost-effective and efficient solution for temperature sensing and protection. Evaluate your technical specifications and environmental conditions to choose the optimal variant for your project.
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TFPT0805L4700FM
THERMISTOR PTC 470 OHM 1% 0805
B59102R0110A010
THERMISTOR PTC 700 OHM 50% RECT
B59421A0135A062
THERMISTOR PTC 470 OHM 50% 0402
FIT0845
PTC HEATING ELEMENT - 5V 100C
TFPT1206L1001FM
THERMISTOR PTC 1K OHM 1% 1206
PT08R472P90
THERMISTOR PTC 0805 90C CURIE
TMP6131QDECRQ1
SENSOR PTC 10K OHM 1% 0402
TFPT1206L1501JM
THERMISTOR PTC 1.5K OHM 5% 1206
TFPT1206L3901JM
THERMISTOR PTC 3.9K OHM 5% 1206
KT110
THERMISTOR PTC 1K OHM 3% TO92
TFPTL15L2201JL2B
THERMISTOR PTC 2.2K OHM 5% RAD
162PS1J
THERMISTOR PTC 1.6K OHM 5% DO35
B59100C0140A070
THERMISTOR PTC 100 OHM RADIAL
TMP6131DYAT
THERMISTOR
TFPT0805L1200JV
THERMISTOR PTC 120 OHM 5% 0805
B59100M1130A070
THERMISTOR PTC 100 OHM
TFPT1206L1002JV
THERMISTOR PTC 10K OHM 5% 1206
B59102R0070A010
THERMISTOR PTC 700 OHM 50% RECT
TFPT1206L1500JV
THERMISTOR PTC 150 OHM 5% 1206
TFPT0805L1501FV
THERMISTOR PTC 1.5K OHM 1% 0805