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
TFPT1206L6800JF Dale / Vishay THERMISTOR PTC 680 OHM 5% 1206 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206 (3216 Metric)
102PS1J U.S. Sensor THERMISTOR PTC 1K OHM 5% DO35 PTC -50°C ~ 150°C Bulk Through Hole - - DO-204AH, DO-35, Axial - DO-35
B59008C180A40 EPCOS THERMISTOR PTC 250 OHM RADIAL - 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
PTFT0603L0470JW Dale / Vishay THERMISTOR PTC 47 OHM 5% 0603 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603
PRF18BG471QB5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -20°C ~ 90°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
B59024S1120A151 EPCOS THERMISTOR PTC 35 OHM 15% DISC - -20°C ~ 125°C Tape & Reel (TR) Through Hole - - Disc, 8.2mm Dia x 4.5mm W - -
TFPT0603L4700FV Dale / Vishay THERMISTOR PTC 470 OHM 1% 0603 TFPT -55°C ~ 125°C Cut Tape (CT) Surface Mount - - 0603 (1608 Metric) - 0603
TFPT0805L5001FM Dale / Vishay THERMISTOR PTC 5K OHM 1% 0805 TFPT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0805 (2125 Metric) - 0805
PRF18BA471QB5RB Murata Electronics THERMISTOR PTC 470 OHM 50% 0603 POSISTOR® PRF18/21 -40°C ~ 150°C Cut Tape (CT) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
PR425C090S101H Agastat Relays / TE Connectivity THERMISTOR PTC 10 OHM RECT - -40°C ~ 150°C Bulk Clamp On - - Rectangular - -

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.