Temperature Sensors - PTC Thermistors

Temperature Sensors - PTC Thermistors

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Image Part Number Manufacturer Description Series Operating Temperature Packaging Mounting Type RoHS Status Manufacturer Part Number Package / Case Polarization Supplier Device Package
TFPT0603L1000FZ Dale / Vishay THERMISTOR PTC 100 OHM 1% 0603 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
TFPT0805L3301JZ Dale / Vishay THERMISTOR PTC 3.3K OHM 5% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
TFPT0805L1801FZ Dale / Vishay THERMISTOR PTC 1.8K OHM 1% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
B59752C0120A070 EPCOS THERMISTOR PTC 80 OHM 25% DISC Automotive, AEC-Q200 -40°C ~ 125°C Bulk Through Hole - - Disc, 11.5mm Dia x 6.0mm W - -
P5010D050S401H Agastat Relays / TE Connectivity THERMISTOR PTC 40 OHM COIN - -40°C ~ 150°C Bulk Clamp On - - Coin - -
B59100C70A70 EPCOS THERMISTOR PTC 100 OHM RADIAL B59100 90°C ~ 150°C Bulk PCB, Through Hole - - Radial - -
TFPT1206L3301FM Dale / Vishay THERMISTOR PTC 3.3K OHM 1% 1206 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206
PRF18BB471QB5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 140°C Cut Tape (CT) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
YQR100R070 Advanced Sensors / Amphenol THERMISTOR PTC 70 OHM 25% BEAD YQ 0°C ~ 60°C Bulk Through Hole - - Bead with Terminal - -
B59050D1100B040 EPCOS THERMISTOR PTC 60 OHM 30% CYLIND - -55°C ~ 100°C Bulk Free Hanging - - Cylinder, Metal - -

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.