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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TFPT1206L8200JZ
THERMISTOR PTC 820 OHM 5% 1206
TFSW0805-100RF
SFERNICE THIN FILMS
KTY82/151,215
THERMISTOR PTC 975 OHM TO236AB
B59100C80A54
THERMISTOR PTC 100 OHM
PTFT1206L0470JW
THERMISTOR PTC 47 OHM 5% 1206
TFPT1206L1001KM
THERMISTOR PTC 1K OHM 10% 1206
PTFT1206L6800JV
THERMISTOR PTC 680 OHM 5% 1206
TFPT0805L4701FY
THERMISTOR PTC 4.7K OHM 1% 0805
PTCTL7NR100SBE
THERMISTOR PTC 10 OHM 20% RADIAL
PTFT0603L1000JV
THERMISTOR PTC 100 OHM 5% 0603
PTCSL20T121DBE
THERMISTOR PTC 100 OHM RADIAL
KTY82/252,215
THERMISTOR PTC 2.05K OHM TO236AB
B59100C50A70
THERMISTOR PTC 100 OHM RADIAL
TFPT1206L2201JY
THERMISTOR PTC 2.2K OHM 5% 1206
PTCSL20T071DBE
THERMISTOR PTC 100 OHM RADIAL
PRF18BF471QB1RB
THERMISTOR PTC 470 OHM 50% 0603
B59603A0085A062
THERMISTOR PTC 470 OHM 50% 0603
TFPT1206L4701KZ
THERMISTOR PTC 4.7K OHM 10% 1206
PTCSL20T091DBE
THERMISTOR PTC 100 OHM RADIAL
PTFT0603L0470JW
THERMISTOR PTC 47 OHM 5% 0603