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
B59525T1120A62 EPCOS THERMISTOR PTC 25 OHM 20% 4SMD - -20°C ~ 125°C Tape & Reel (TR) Surface Mount - - 4-SMD - 4-SMD
TFPT0603L2700JM Dale / Vishay THERMISTOR PTC 270 OHM 5% 0603 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0603 (1608 Metric) - 0603 (1608 Metric)
PTCSGM3T111DBE Electro-Films (EFI) / Vishay THERMISTOR PTC 5% RADIAL - -20°C ~ 165°C - PCB, Through Hole - - Radial - -
B59300M1060A70 EPCOS THERMISTOR PTC 300 OHM RADIAL B59300 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
B59875T1120A62 EPCOS THERMISTOR PTC 75 OHM 20% 4SMD - -20°C ~ 125°C Tape & Reel (TR) Surface Mount - - 4-SMD - 4-SMD
B59536A0135A020 EPCOS THERMISTOR PTC DISC - - Tray Holder - - Disc - -
B59835T1120A062 EPCOS THERMISTOR PTC 35 OHM 15% 4SMD - -20°C ~ 125°C Cut Tape (CT) Surface Mount - - 4-SMD - 4-SMD
PTFT1206L6800JW Dale / Vishay THERMISTOR PTC 680 OHM 5% 1206 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206
TFPT1206L8201KZ Dale / Vishay THERMISTOR PTC 8.2K OHM 10% 1206 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206 (3216 Metric)
TFPT0805L6801FZ Dale / Vishay THERMISTOR PTC 6.8K OHM 1% 0805 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 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.