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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | Current | Accuracy | Termination | Package / Case | Temperature Coefficient |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | - | |
| TFPT1206L1501JM | Dale / Vishay | THERMISTOR PTC 1.5K OHM 5% 1206 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | - | 1206 (3216 Metric) | - | |
| B59100C0130A070 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59100 | 90°C ~ 150°C | Bulk | PCB, Through Hole | - | - | - | Radial | - | |
| B59801D70A40 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59801 | 90°C ~ 120°C | Bulk | PCB, Through Hole | - | - | - | Radial | - | |
| KTY83/110,113 | NXP Semiconductors / Freescale | THERMISTOR PTC 1K OHM DO34 | KTY83 | -55°C ~ 175°C | Cut Tape (CT) | Through Hole | - | - | - | DO-204AG, DO-34, Axial | - | |
| PTFT1206L0100JW | Dale / Vishay | THERMISTOR PTC 10 OHM 5% 1206 | PTFT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 1206 (3216 Metric) | - |
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.