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
TFPT0805L2201FZ Dale / Vishay THERMISTOR PTC 2.2K OHM 1% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
TFPT0805L5600JZ Dale / Vishay THERMISTOR PTC 560 OHM 5% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
B59100C0100A070 EPCOS THERMISTOR PTC 100 OHM RADIAL B59100 90°C ~ 150°C Bulk PCB, Through Hole - - Radial - -
PTFM04BH222Q2N34BS Murata Electronics THERMISTOR PTC 2.2K OHM TO51-2 Posistor® -10°C ~ 40°C Bulk Through Hole - - TO-51-2 Variant - -
TFPT1206L1501FY Dale / Vishay THERMISTOR PTC 1.5K OHM 1% 1206 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206 (3216 Metric)
PTFT0805L0220JW Dale / Vishay THERMISTOR PTC 22 OHM 5% 0805 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805
PTCSL03T091DT1E Electro-Films (EFI) / Vishay THERMISTOR PTC RADIAL LEAD DISC - -40°C ~ 165°C Cut Tape (CT) Through Hole - - Disc, 4.0mm Dia x 3.0mm W - Radial Lead
USP14579 U.S. Sensor THERMISTOR PTC 1K OHM 2% CYLIND USP 105°C Bulk Free Hanging - - Cylindrical Probe Assembly - -
B59601A0105A062 EPCOS THERMISTOR PTC 470 OHM 50% 0603 B59601 -40°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
KTY82/210,215 NXP Semiconductors / Freescale THERMISTOR PTC 2K OHM TO236AB KTY82 -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - TO-236-3, SC-59, SOT-23-3 - TO-236AB (SOT23)

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.