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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PRF18BD471RS5RB
THERMISTOR PTC 470 OHM 50% 0603
TFPT1206L1000JM
THERMISTOR PTC 100 OHM 5% 1206
TFPT1206L2201JV
THERMISTOR PTC 2.2K OHM 5% 1206
PT08R472P100
THERMISTOR PTC 0805 100C CURIE
TFPT1206L4701FM
THERMISTOR PTC 4.7K OHM 1% 1206
TFPT1206L2700FM
THERMISTOR PTC 270 OHM 1% 1206
TFPT0805L1800JM
THERMISTOR PTC 180 OHM 5% 0805
TFPT1206L1501FV
THERMISTOR PTC 1.5K OHM 1% 1206
TFPTL15L1001FL2T
THERMISTOR PTC 1K OHM 1% RADIAL
B59641A0135A062
THERMISTOR PTC 470 OHM 50% 0603
TFPT0603L1001JV
THERMISTOR PTC 1K OHM 5% 0603
TFPT0805L2200FM
THERMISTOR PTC 220 OHM 1% 0805
KTY81/210,112
THERMISTOR PTC 2K OHM PBCYT2
PRF18BA471QS5RB
THERMISTOR PTC 470 OHM 50% 0603
B59501A0135A020
THERMISTOR PTC 33 OHM 20% DISC
B59544A0120A020
THERMISTOR PTC 20 OHM 20% DISC
TFPT0603L1001JM
THERMISTOR PTC 1K OHM 5% 0603
B59100C0080A070
THERMISTOR PTC 100 OHM RADIAL
YGM1 C545
THERMISTOR PTC 250 OHM 10% RAD
B59041R0120A010
THERMISTOR PTC 3.2 OHM 50% RECT