| 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 | - | - |
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.