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
B59300M1145A70 EPCOS THERMISTOR PTC 300 OHM RADIAL B59300 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
TFPT0603L6800FV Dale / Vishay THERMISTOR PTC 680 OHM 1% 0603 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603
KTY81/220,116 NXP Semiconductors / Freescale THERMISTOR PTC 2K OHM PBCYT2 KTY81 -55°C ~ 150°C Tape & Reel (TR) Through Hole - - TO-226-2, TO-92-2 (TO-226AC) (Formed Leads) - PBCYT2
PTFL04BC471Q2N34B0 Murata Electronics THERMISTOR PTC 470 OHM DISC Posistor® -10°C ~ 40°C Bulk Through Hole - - Disc, 5.0mm Dia x 4.0mm W - -
PRF18BB471QS5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 140°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
PTFT0603L1000JW Dale / Vishay THERMISTOR PTC 100 OHM 5% 0603 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603
TFPT0805L6800JM Dale / Vishay THERMISTOR PTC 680 OHM 5% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
TFPT1206L8200JZ Dale / Vishay THERMISTOR PTC 820 OHM 5% 1206 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206 (3216 Metric)
B59060A0000A010 EPCOS THERMISTOR PTC DISC - - Tray Surface Mount - - Disc - -
TFPT0805L1200FV Dale / Vishay THERMISTOR PTC 120 OHM 1% 0805 TFPT -55°C ~ 125°C Cut Tape (CT) Surface Mount - - 0805 (2125 Metric) - 0805

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.