| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Package / Case | Polarization | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TFPT0805L4701FM | Dale / Vishay | THERMISTOR PTC 4.7K OHM 1% 0805 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0805 (2125 Metric) | - | 0805 | |
| B59100M1060A070 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59100 | 90°C ~ 160°C | Bulk | PCB, Through Hole | - | - | Radial | - | - | |
| PTFT0603L0100JW | Dale / Vishay | THERMISTOR PTC 10 OHM 5% 0603 | PTFT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0603 (1608 Metric) | - | 0603 | |
| TFPT0603L1000FM | Dale / Vishay | THERMISTOR PTC 100 OHM 1% 0603 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | 0603 (1608 Metric) | - | 0603 | |
| B59249R0155B010 | EPCOS | THERMISTOR PTC 3K OHM 35% RECT | B59249R | -40°C ~ 200°C | Box | Surface Mount | - | - | Rectangular Disc | - | Rectangular Disc | |
| STS110003CHIP | Cantherm | THERMISTOR PTC 1K OHM 3% AXIAL | STS1 | -40°C ~ 170°C | Bulk | Through Hole | - | - | Axial | - | - | |
| TFPT1206L2700JV | Dale / Vishay | THERMISTOR PTC 270 OHM 5% 1206 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | 1206 (3216 Metric) | - | 1206 (3216 Metric) | |
| P5005C135S500H | Agastat Relays / TE Connectivity | THERMISTOR PTC 5 OHM COIN | - | -40°C ~ 150°C | Bulk | Clamp On | - | - | Coin | - | - | |
| PTFL04BC222Q2N34B0 | Murata Electronics | THERMISTOR PTC 2.2K OHM DISC | Posistor® | -10°C ~ 40°C | Bulk | Through Hole | - | - | Disc, 5.0mm Dia x 4.0mm W | - | - | |
| PTCSL03T111DT1E | 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 |
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.