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Temperature Sensors - PTC Thermistors

Temperature Sensors - PTC Thermistors

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  3. Temperature Sensors - PTC Thermistors
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Image Part Number Manufacturer Description Series Operating Temperature Packaging Mounting Type Current Accuracy Termination Package / Case Temperature Coefficient
PRF18BF471QS5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 100°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
PRF18BG471RS5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 90°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
TFPT0603L8200FV Dale / Vishay THERMISTOR PTC 820 OHM 1% 0603 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
B59735T1120A062 EPCOS THERMISTOR PTC 35 OHM 15% 4SMD - -20°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 4-SMD -
B59300M1080A70 EPCOS THERMISTOR PTC 300 OHM RADIAL B59300 90°C ~ 160°C Bulk PCB, Through Hole - - - Radial -
PTFT1206L0220JW Texas Instruments THERMISTOR PTC 22 OHM 5% 1206 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 1206 (3216 Metric) -
PRF18BF471QB1RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 100°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
B59053A0110A010 EPCOS THERMISTOR PTC 4.2K OHM 35% COIN - -40°C ~ 200°C Tray Clamp On - - - Coin 8.0mm Dia x 3.2mm W -
B59406B0060A040 EPCOS THERMISTOR PTC 5.5K OHM 28% RAD - -40°C ~ 125°C Bulk Through Hole - - - Radial -
PTCCL21H591HBE Texas Instruments THERMISTOR PTC - - - - - - - - -

About Temperature Sensors - PTC Thermistors


Positive temperature coefficient (PTC) thermistors are temperature-sensitive resistors whose resistance increases significantly with temperature rise. PTC thermistors are typically made of ceramic materials doped with metal oxides and exhibit a nonlinear resistance-temperature characteristic. They find applications in overcurrent protection, motor starting, temperature sensing, and temperature compensation circuits. PTC thermistors offer self-regulating characteristics, where their resistance increases sharply when the operating temperature exceeds a certain threshold, limiting current flow and providing inherent overcurrent protection. PTC thermistors also find applications in temperature compensation circuits and inrush current limiters, where their resistance changes with temperature variations to control current flow and stabilize operating conditions.