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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | Current | Accuracy | Termination | Package / Case | Temperature Coefficient |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TFPT1206L2200FV | Dale / Vishay | THERMISTOR PTC 220 OHM 1% 1206 | TFPT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 1206 (3216 Metric) | - | |
| KTY83/122,113 | NXP Semiconductors / Freescale | THERMISTOR PTC 1.01K OHM DO34 | KTY83 | -55°C ~ 175°C | Tape & Reel (TR) | Through Hole | - | - | - | DO-204AG, DO-34, Axial | - | |
| PTFT0805L4700JV | Texas Instruments | THERMISTOR PTC 470 OHM 5% 0805 | PTFT | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0805 (2012 Metric) | - | |
| KTY82/120,215 | NXP Semiconductors / Freescale | THERMISTOR PTC 1K OHM TO236AB | KTY82 | -55°C ~ 150°C | Cut Tape (CT) | Surface Mount | - | - | - | TO-236-3, SC-59, SOT-23-3 | - | |
| B59910C0120A070 | EPCOS | THERMISTOR PTC 1.2 OHM 25% DISC | - | -40°C ~ 85°C | Bulk | Through Hole | - | - | - | Disc, 26mm Dia x 3.5mm W | - | |
| B59100M1100A070 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59100 | 90°C ~ 160°C | Bulk | PCB, Through Hole | - | - | - | Radial | - | |
| PRF18BF471RS5RB | Murata Electronics | THERMISTOR PTC 470 OHM 50% 0603 | POSISTOR® PRF18/21 | -20°C ~ 100°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0603 (1608 Metric) | - | |
| B59100M1145A070 | EPCOS | THERMISTOR PTC 100 OHM RADIAL | B59100 | 90°C ~ 160°C | Bulk | PCB, Through Hole | - | - | - | Radial | - | |
| B59011E0160A040 | EPCOS | THERMISTOR PTC AXIAL | - | -55°C ~ 100°C | Bulk | Through Hole | - | - | - | Axial | - | |
| TFPT0805L8200FM | Dale / Vishay | THERMISTOR PTC 820 OHM 1% 0805 | TFPT | -55°C ~ 150°C | Tape & Reel (TR) | Surface Mount | - | - | - | 0805 (2012 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.