
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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B59052D1120A40
PTC THERMISTOR D 052-A 120-A 40
B59102R0270A010
THERMISTOR PTC 1.3K OHM 50% RECT
KTY82/120,215
THERMISTOR PTC 1K OHM TO236AB
KTY21-7
CURRENT OUTPUT TEMP SENSOR
KTY81/121,112
THERMISTOR PTC 990 OHM PBCYT2
TFPT0805L3900JM
THERMISTOR PTC 390 OHM 5% 0805
PTCSL03T131DT1E
THERMISTOR PTC RADIAL LEAD DISC
STS110003CHIP
THERMISTOR PTC 1K OHM 3% AXIAL
B59641A0105A562
THERMISTOR PTC
B59406B0060A040
THERMISTOR PTC 5.5K OHM 28% RAD
TFPT0805L5600JM
THERMISTOR PTC 560 OHM 5% 0805
TFPT1206L5601FM
THERMISTOR PTC 5.6K OHM 1% 1206
TFPT1206L2200JV
THERMISTOR PTC 220 OHM 5% 1206
TFPT0805L5001JV
THERMISTOR PTC 5K OHM 5% 0805
B59197A0120B020
THERMISTOR PTC 33 OHM 30% DISC
B59339A1501P020
THERMISTOR PTC 500 OHM 25% RAD
PRF15AR102RB6RC
THERMISTOR PTC 1K OHM 5% 0402
TFPT0805L2701FV
THERMISTOR PTC 2.7K OHM 1% 0805
LT7339002B680RJTD
THERMISTOR PTC 680 OHM 5% 1206
TFPT1206L4700FM
THERMISTOR PTC 470 OHM 1% 1206