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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | Current | Accuracy | Termination | Package / Case | Temperature Coefficient |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B59107J0130A020 | EPCOS | THERMISTOR PTC 56 OHM RADIAL | - | -20°C ~ 85°C | Tray | PCB, Through Hole | - | - | - | Radial | - | |
| B59315P1080A062 | EPCOS | THERMISTOR PTC 25% 4032 | Automotive, AEC-Q200, B59215 | -40°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 4032 (1080 Metric) | - | |
| TFPT1206L1000FM | Dale / Vishay | THERMISTOR PTC 100 OHM 1% 1206 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 1206 (3216 Metric) | - | |
| TFPT1206L3900JZ | Dale / Vishay | THERMISTOR PTC 390 OHM 5% 1206 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | - | 1206 (3216 Metric) | - | |
| TFPT0805L2201JV | Dale / Vishay | THERMISTOR PTC 2.2K OHM 5% 0805 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0805 (2125 Metric) | - | |
| TFPT0805L1201FM | Dale / Vishay | THERMISTOR PTC 1.2K OHM 1% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0805 (2012 Metric) | - | |
| KTY81/121,112 | NXP Semiconductors / Freescale | THERMISTOR PTC 990 OHM PBCYT2 | KTY81 | -55°C ~ 150°C | Bulk | Through Hole | - | - | - | TO-226-2, TO-92-2 (TO-226AC) | - | |
| TFPT0603L2200FM | Dale / Vishay | THERMISTOR PTC 220 OHM 1% 0603 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0603 (1608 Metric) | - | |
| KTY81/110,112 | NXP Semiconductors / Freescale | THERMISTOR PTC 1K OHM PBCYT2 | KTY81 | -55°C ~ 150°C | Bulk | Through Hole | - | - | - | TO-226-2, TO-92-2 (TO-226AC) | - | |
| B59095A0080B110 | EPCOS | THERMISTOR PTC 9.3 OHM 10% DISC | - | -20°C ~ 125°C | Tray | Surface Mount | - | - | - | Disc | - |
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.