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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TFPT0603L3300FV
THERMISTOR PTC 330 OHM 1% 0603
B59053A0150A010
THERMISTOR PTC 4.2K OHM 35% COIN
B59721A0120A062
THERMISTOR PTC 680 OHM 50% 0805
TFPT0805L3301FM
THERMISTOR PTC 3.3K OHM 1% 0805
B59100M1140A070
THERMISTOR PTC 100 OHM
B59008C0150A040
THERMISTOR PTC 250 OHM RADIAL
TFPT0805L1201FV
THERMISTOR PTC 1.2K OHM 1% 0805
PRF21BB471QB5RA
THERMISTOR PTC 470 OHM 50% 0805
TM1STNTCW69755
NTC FOR AIR WALL MOUNTING
B59811C0135A070
THERMISTOR PTC 2.6 OHM 25% DISC
B59100M1180A070
THERMISTOR PTC 100 OHM
B59300M1130A070
THERMISTOR PTC 300 OHM RADIAL
TFPT0805L4701FM
THERMISTOR PTC 4.7K OHM 1% 0805
TFPT1206L5000FM
THERMISTOR PTC 500 OHM 1% 1206
PRF21AR471QB5RA
THERMISTOR PTC 470 OHM 50% 0805
B59701A0070A062
THERMISTOR PTC 680 OHM 50% 0805
TMP6431DECT
47K THERMISTOR PRODUCT
TMP6331QDYATQ1
AUTOMOTIVE 1% TOLERANCE 100K LIN
B59860C0120A570
THERMISTOR PTC 15 OHM 20% RADIAL
B59601A0105B062
THERMISTOR PTC 470 OHM 50% 0603