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
B59100M1130A070 EPCOS THERMISTOR PTC 100 OHM RADIAL B59100 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
PTFT0805L4701JV Dale / Vishay THERMISTOR PTC 4.7K OHM 5% 0805 PTFT -55°C ~ 125°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805
B59173C1130A151 EPCOS THERMISTOR PTC 55 OHM 15% DISC - -20°C ~ 125°C Tape & Reel (TR) Through Hole - - Disc, 8.0mm Dia x 5.0mm W - -
B59300M1150A070 EPCOS THERMISTOR PTC 300 OHM RADIAL B59300 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
B59008C0150A040 EPCOS THERMISTOR PTC 250 OHM RADIAL - 90°C ~ 160°C Bulk PCB, Through Hole - - Radial - -
B59753C0120A070 EPCOS THERMISTOR PTC 120 OHM 25% DISC - -40°C ~ 125°C Bulk Through Hole - - Disc, 13mm Dia x 7.5mm W - -
KTY82/221,215 NXP Semiconductors / Freescale THERMISTOR PTC 1.98K OHM TO236AB KTY82 -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - TO-236-3, SC-59, SOT-23-3 - TO-236AB (SOT23)
PRF21AS471QB5RA Murata Electronics THERMISTOR PTC 470 OHM 50% 0805 POSISTOR® PRF18/21 -20°C ~ 160°C Tape & Reel (TR) Surface Mount - - 0805 (2012 Metric) - 0805 (2012 Metric)
TFPT1206L5601KZ Dale / Vishay THERMISTOR PTC 5.6K OHM 10% 1206 TFPT -55°C ~ 150°C Tape & Reel (TR) Surface Mount - - 1206 (3216 Metric) - 1206 (3216 Metric)
B59585B1150A70 EPCOS THERMISTOR PTC 1 OHM 20% DISC - -20°C ~ 125°C Bulk Through Hole - - Disc - -

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.