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Temperature Sensors - PTC Thermistors

Temperature Sensors - PTC Thermistors

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  2. Sensors, Transducers
  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
PRF18BE471QB1RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 110°C Original-Reel® Surface Mount - - - 0603 (1608 Metric) -
B59641A0115A062 EPCOS THERMISTOR PTC 470 OHM 50% 0603 Automotive, AEC-Q200, B59641 -40°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
LT7339002B1K0JTD AMP Connectors / TE Connectivity THERMISTOR PTC 1K OHM 5% 1206 LT73 -40°C ~ 125°C - Surface Mount - - - 1206 (3216 Metric) -
TFPT0805L3901KM Dale / Vishay THERMISTOR PTC 3.9K OHM 10% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - - 0805 (2012 Metric) -
KTY81/150,112 NXP Semiconductors / Freescale THERMISTOR PTC 1K OHM PBCYT2 KTY81 -55°C ~ 150°C Bulk Through Hole - - - TO-226-2, TO-92-2 (TO-226AC) -
B59300M1170A70 EPCOS THERMISTOR PTC 300 OHM RADIAL B59300 90°C ~ 160°C Bulk PCB, Through Hole - - - Radial -
B59850C0120A570 EPCOS THERMISTOR PTC 10 OHM 20% DISC - -40°C ~ 125°C Bulk Through Hole - - - Disc -
TFPT0603L1001JV Dale / Vishay THERMISTOR PTC 1K OHM 5% 0603 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -
B59701A0120A062 EPCOS THERMISTOR PTC 680 OHM 50% 0805 B59701 -40°C ~ 125°C Tape & Reel (TR) Non-Standard, Leadless - - - 0805 (2012 Metric) -
TFPT0603L1500JM Dale / Vishay THERMISTOR PTC 150 OHM 5% 0603 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - - 0603 (1608 Metric) -

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.