Littelfuse precision interchangeable thermistors are cost-effective, highly accurate, and stable devices designed for temperature sensing and control. Their precision interchangeability eliminates the need for individual circuit calibration, making them ideal for applications requiring reliable temperature monitoring.
| Part Number | Resistance Ohms @25C | Accuracy (C) 0-70C | R-T Curve | Temperature Coefficient (% / C) @ 25C | Beta (K) 0-50C | Dissipation Constant, Nominal (mW/C) | Thermal Time Constant, Max. - Still Air (seconds) | Thermal Time Constant, Max. - Well Stirred Oil (seconds) | Temperature Rating (C) Storage & Operation Temp for Best L/T Stability (C) |
| KX102J2 | 1000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX222J2 | 2252 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX302J2 | 3000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX502J2 | 5000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX602J2 | 6000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX103G2 | 10000 | 1.0C | G | -4.04 | 3575 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX103J2 | 10000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX203J2 | 20000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX303J2 | 30000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX503J2 | 50000 | 1.0C | J | -4.4 | 3892 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX503R2 | 50000 | 1.0C | R | -4.68 | 4140 | 1 | 10 | 1 | -80 to +135 -80 to +120 |
| KX104R2 | 100000 | 1.0C | R | -4.68 | 4140 | 1 | 10 | 1 | -80 to +135 -80 to +120 |