The ET series thermistor series is very small and features small size and high sensitivity. – Tight resistance and B-value tolerances; high accuracy – Uniform shape facilitates automated assembly – Long term reliability SEMITEC’S ET thermistors are fully compliant with RoHS DIRECTIVE2011/65/EU.
Body thermometers, thermometers, medical devices, controllers, mobile devices, battery packs, home electronics, toilet heaters, security, LCDs, electric vehicles
| Part No. | R251 | R |
B-value2 | Dissipation factor ｍW/℃ |
Thermal time constant3 | Rated power mW at 25℃ |
Operating Temperature range ℃ |
|---|---|---|---|---|---|---|---|
| 212ET | 2.10kΩ | ±3% | 3850K±1% | approx. 0.7 | approx. 3.4 (ET-1 3.2) |
3.5 | −40〜+90 |
| 402ET | 4.00kΩ | 3100K±1% | |||||
| 582ET | 5.80kΩ | 3614K±1% | |||||
| 902ET | 9.00kΩ | 3470K±1% | |||||
| 103ET | 10.0kΩ | 3250K±1% | |||||
| 203ET | 20.0kΩ | 3450K±1% | −40〜+100 | ||||
| 303ET | 30.0kΩ | 3760K±1% | |||||
| 403ET | 40.0kΩ | 3525K±1% | |||||
| 413ET | 41.0kΩ | 3435K±1% | |||||
| 503ET | 50.0kΩ | 4055K±1% | |||||
| 593ET | 59.0kΩ | 3617K±1% | |||||
| 833ET | 83.0kΩ | 4013K±1% | |||||
| 104ET | 100kΩ | 4132K±1% | −40〜+90 | ||||
| 224ET | 226kΩ | 4021K±1% | −40〜+100 | ||||
| 234ET | 232kΩ | 4274K±1% | |||||
| 103ETB | 10.0kΩ | ±1%、±2% | 3435K±1% | −40〜+90 |
1. Rated zero-power resistance at 25℃
2. B-value determined by rated zero-power resistance at 25℃ and 85℃
3. Time required to reach 63.2% of temperature difference. Measured in still air.
| Part No. | R371 | R25 Tolerance | B-value2 | Dissipation factor ｍW/℃ |
Thermal time constant s※3 | Rated power mW at 25℃ |
Temperature range ℃ |
|---|---|---|---|---|---|---|---|
| 503ET-3H | 29.937kΩ | ±1.08% | 3944K±0.5% | approx. 0.7 | approx. 0.8 | 3.5 | −40〜+100 |
1. Rated zero-power resistance at 37℃
2. B-value determined by rated zero-power resistance at 30℃ and 45℃
3. Time required to reach 63.2% of temperature difference. Measured in oil.