CHR01-2025 Series Humidity Sensitive Resistor
The CHR01-2025 series is an impedance-type polymer humidity sensor (humidity sensitive resistor) that utilizes a functional polymer film coated on a ceramic substrate with conductive electrodes. The impedance of this component changes logarithmically with relative humidity, with the conductivity mechanism influenced by the mobility of conductive ions within the polymer film due to the presence of water molecules. This industrial-grade sensor offers high accuracy, reliability, good waterproof and water resistance, strong adaptability to high and low humidity, stability, low drift, and good consistency. It is suitable for applications requiring humidity measurement, such as dehumidifiers, humidifiers, transmitters, modules, electronic thermometers and hygrometers, refrigeration, drying, and meteorology.
Product Attributes
- Brand: CYBERSEN
- Manufacturer: Guangzhou Cybersen Technology Co., Ltd.
- Origin: China
- Material (Housing): ABS
- Material (Substrate): AL2O3
- Certifications: GB/T15768-95, SJ/T10431-93, SJ20760-99
Technical Specifications
| Model | Nominal Resistance (at 25, 60%RH) | Size | Pin Spacing | Working Voltage | Detection Range | Detection Accuracy | Operating Temperature Range | Max Operating Temperature | Response Time | Humidity Drift (/year) | Humidity Hysteresis |
| CHR01-2025 | 23K | W (Semi-circular) / S (Square) | W: 5.08mm / S: 2.54mm | 1V AC (50Hz2 KHz) | 0%99%RH | 2% | 085 | 120 | 12s (20%90%) | 2%RH | 1.5%RH |
Characteristic Impedance Data (at 25)
| Model | 20% RH | 30% RH | 40% RH | 50% RH | 60% RH | 70% RH | 80% RH | 90% RH |
| CHR01-2025 | 3000 K | 920 K | 240 K | 68 K | 23 K | 9.5 K | 4.1 K | 1.8 K |
Humidity/Impedance Data Table (Units: K)
| Temperature | 20% | 25% | 30% | 35% | 40% | 45% | 50% | 55% | 60% | 65% | 70% | 75% | 80% | 85% | 90% | 95% |
| 10 | 4100 | 2500 | 1900 | 1100 | 630 | 310 | 160 | 80 | 50 | 29 | 16 | 10 | 7 | 4.6 | 3.2 | 2.1 |
| 15 | 3000 | 2100 | 1500 | 870 | 430 | 220 | 115 | 65 | 36 | 22 | 13 | 9.1 | 5.9 | 3.8 | 2.5 | 1.9 |
| 20 | 2300 | 1600 | 1200 | 650 | 320 | 170 | 90 | 53 | 28 | 17 | 11 | 7.5 | 5 | 3.3 | 2.1 | 1.6 |
| 25 | 1700 | 1300 | 920 | 470 | 240 | 125 | 68 | 37 | 23 | 14 | 9.4 | 6.1 | 4.1 | 2.8 | 1.8 | 1.4 |
| 30 | 1400 | 940 | 690 | 330 | 180 | 95 | 55 | 30 | 18 | 12 | 8.2 | 5.5 | 3.7 | 2.4 | 1.7 | 1.2 |
| 35 | 1000 | 730 | 490 | 250 | 145 | 75 | 42 | 26 | 15.5 | 10 | 7 | 4.7 | 3.3 | 2.1 | 1.5 | 1 |
| 40 | 800 | 540 | 350 | 210 | 120 | 65 | 36 | 22 | 13 | 8.8 | 6.2 | 4.1 | 2.6 | 1.9 | 1.3 | 0.8 |
| 45 | 250 | 160 | 120 | 95 | 76 | 44 | 27 | 17 | 10.5 | 6.7 | 4.3 | 3.1 | 2 | 1.4 | 0.9 | 0.55 |
| 50 | 1400 | 1000 | 800 | 400 | 200 | 100 | 50 | 30 | 20 | 10 | 5 | 3 | 2 | 1 | 0.5 | 0.25 |
