| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Package / Case | Polarization | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRF15BB102RB6RC | Murata Electronics | THERMISTOR PTC 1K OHM 50% 0402 | Posistor® | -40°C ~ 140°C | Tape & Reel (TR) | Surface Mount | - | - | 0402 (1005 Metric) | - | 0402 (1005 Metric) | |
| PTCLL05P251TTE | Electro-Films (EFI) / Vishay | THERMISTOR PTC 125 OHM RADIAL | PTCLL | -20°C ~ 105°C | Tape & Reel (TR) | Through Hole | - | - | Disc, 5.4mm Dia x 4.5mm W | - | Radial Lead | |
| TFPT0805L2200FZ | Dale / Vishay | THERMISTOR PTC 220 OHM 1% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 (2012 Metric) | |
| B59535T1120A262 | EPCOS | THERMISTOR PTC 35 OHM 20% 4SMD | - | -20°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 4-SMD | - | 4-SMD | |
| TFPT1206L4700FV | Dale / Vishay | THERMISTOR PTC 470 OHM 1% 1206 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 1206 (3216 Metric) | - | 1206 | |
| PTCCL21H202DBE | Electro-Films (EFI) / Vishay | THERMISTOR PTC RADIAL LEAD DISC | - | -40°C ~ 85°C | - | Through Hole | - | - | Disc, 20.5mm Dia x 4.0mm W | - | Radial Lead | |
| TFPT0805L1200JY | Dale / Vishay | THERMISTOR PTC 120 OHM 5% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 (2012 Metric) | |
| PRF21BB471QB5RA | Murata Electronics | THERMISTOR PTC 470 OHM 50% 0805 | POSISTOR® PRF18/21 | -20°C ~ 130°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 | |
| TFPT0805L3300KV | Dale / Vishay | THERMISTOR PTC 330 OHM 10% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2012 Metric) | - | 0805 (2012 Metric) | |
| B59641A0125A062 | EPCOS | THERMISTOR PTC 470 OHM 50% 0603 | Automotive, AEC-Q200, B59641 | -40°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0603 (1608 Metric) | - | 0603 |
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.