| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Package / Case | Polarization | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TFPT0805L2201FZ | Dale / Vishay | THERMISTOR PTC 2.2K OHM 1% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 (2012 Metric) | |
| TFPT0805L5600JZ | Dale / Vishay | THERMISTOR PTC 560 OHM 5% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 (2012 Metric) | |
| B59100C0100A070 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59100 | 90°C ~ 150°C | Bulk | PCB, Through Hole | - | - | Radial | - | - | |
| PTFM04BH222Q2N34BS | Murata Electronics | THERMISTOR PTC 2.2K OHM TO51-2 | Posistor® | -10°C ~ 40°C | Bulk | Through Hole | - | - | TO-51-2 Variant | - | - | |
| TFPT1206L1501FY | Dale / Vishay | THERMISTOR PTC 1.5K OHM 1% 1206 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 1206 (3216 Metric) | - | 1206 (3216 Metric) | |
| PTFT0805L0220JW | Dale / Vishay | THERMISTOR PTC 22 OHM 5% 0805 | PTFT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 | |
| PTCSL03T091DT1E | Electro-Films (EFI) / Vishay | THERMISTOR PTC RADIAL LEAD DISC | - | -40°C ~ 165°C | Cut Tape (CT) | Through Hole | - | - | Disc, 4.0mm Dia x 3.0mm W | - | Radial Lead | |
| USP14579 | U.S. Sensor | THERMISTOR PTC 1K OHM 2% CYLIND | USP | 105°C | Bulk | Free Hanging | - | - | Cylindrical Probe Assembly | - | - | |
| B59601A0105A062 | EPCOS | THERMISTOR PTC 470 OHM 50% 0603 | B59601 | -40°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0603 (1608 Metric) | - | 0603 (1608 Metric) | |
| KTY82/210,215 | NXP Semiconductors / Freescale | THERMISTOR PTC 2K OHM TO236AB | KTY82 | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | TO-236-3, SC-59, SOT-23-3 | - | TO-236AB (SOT23) |
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.