Parameters: - Standard resistance: R25(25): (common use) 1.5K 2K 5K 10K 20K 30K 47K 50K 100K 200K 500K etc - Resistance tolerance: ±1% ±2% ±3% - B-value R25/50: 3435K 3600K 3950K 3990K 4100K 4200K etc - B-value accuracy: ±1% - Operating temperature: -40~+300'C - Power dissipation coefficient: >= 5 mW/'C (in static air) - Max. rated power: 45mW - Thermal time constant: <=7S (in static air) - Temperature coefficient of resistance: -2~-5%/'C - It is recommended to use: R25'C = 100K B25/50 = 3950K±1% Features: - High sensitivity and quick response; - Compact structure and easy installation; - Wide operating temperature range stable and reliable; - High accuracy.