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
PTFT1206L4701JW Dale / Vishay THERMISTOR PTC 4.7K OHM 5% 1206 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206
B59881C0135A070 EPCOS THERMISTOR PTC 70 OHM 25% DISC - -40°C ~ 125°C Bulk Through Hole - - Disc, 6.5mm Dia x 5.0mm W - -
RL2006-100-50-30-PTE Advanced Sensors / Amphenol THERMISTOR PTC 150 OHM 5% TO220 RL2006 - Bulk Through Hole - - TO-220-2 - -
PTFT0603L1501JW Dale / Vishay THERMISTOR PTC 1.5K OHM 5% 0603 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603
PTFM04BF222Q2N34BS Murata Electronics THERMISTOR PTC 330 OHM 30% TO51 Posistor® -10°C ~ 40°C Bulk Through Hole - - TO-51-2 Variant - -
PTCSL40T081DBE Electro-Films (EFI) / Vishay THERMISTOR PTC 100 OHM RADIAL - - - PCB, Through Hole - - Radial - -
PRF15BG102RB6RC Murata Electronics THERMISTOR PTC 1K OHM 50% 0402 Posistor® -40°C ~ 100°C Original-Reel® Surface Mount - - 0402 (1005 Metric) - 0402 (1005 Metric)
B59421A0105A062 EPCOS THERMISTOR PTC 470 OHM 50% 0402 Automotive, AEC-Q200, B59421 -40°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0402 (1005 Metric) - 0402
PTCSSLVT131DBE Electro-Films (EFI) / Vishay THERMISTOR PTC 100 OHM RADIAL PTCSSLVT - - PCB, Through Hole - - Radial - -
TFPT0805L3301JV Dale / Vishay THERMISTOR PTC 3.3K OHM 5% 0805 TFPT -55°C ~ 125°C Tape & Reel (TR) 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.