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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
KTY82/150,215 NXP Semiconductors / Freescale THERMISTOR PTC 1K OHM TO236AB KTY82 -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - - TO-236-3, SC-59, SOT-23-3 -
B59069B1120A051 EPCOS THERMISTOR PTC 25 OHM 15% RADIAL - -20°C ~ 125°C Tape & Reel (TR) Through Hole - - - Radial -
B59810C0160A070 EPCOS THERMISTOR PTC 1.6 OHM 25% DISC - -40°C ~ 125°C Bulk Through Hole - - - Disc, 26mm Dia x 5.0mm W -
B59901D0100A040 EPCOS THERMISTOR PTC 100 OHM RADIAL B59901 90°C ~ 130°C Bulk PCB, Through Hole - - - Radial -
TFPT0805L1000KZ Dale / Vishay THERMISTOR PTC 100 OHM 10% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - - 0805 (2012 Metric) -
B59450T1120A62 EPCOS THERMISTOR PTC 50 OHM 15% 8SMD - -20°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 8-SMD -
B59825T1120A62 EPCOS THERMISTOR PTC 25 OHM 20% 4SMD - -20°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 4-SMD -
B59041R0180A010 EPCOS THERMISTOR PTC 3.2 OHM 50% RECT - -40°C ~ 200°C Tray Surface Mount - - - Rectangular Disc -
TFPT1206L2201FV Dale / Vishay THERMISTOR PTC 2.2K OHM 1% 1206 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - - 1206 (3216 Metric) -
B59601A0085B062 EPCOS THERMISTOR PTC 470 OHM 50% 0603 B59601 -40°C ~ 125°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.