Based on the rugged HS1101LF humidity sensor, HTF3226LF is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. It features a miniature connector for easy, cost-effective mechanical mounting. Direct interface with a micro-controller is made possible with the module’s linear frequency output.
HTF3226LF Temperature and Humidity Sensor FEATURES
• Full Lead free product
• Calibrated within +/-5% @55%RH
• Small size and very cost effective
• Miniature connector (JST)
• 10kOhms +/-3% NTC temperature sensor (1% optional)
• The best combination of cost effectiveness and performance
• Stable, linear proportional frequency output from 10% to 95%RH
• Stable and reproducible characteristics with temperature
• High reliability and long term stability
Humidity Sensor Specific Features
• Instantaneous de-saturation after long periods in saturation phase
• Fast response time
• High resistance to chemicals
• Not affected by water immersion
• Patented solid polymer structure
Temperature Sensor Specific Features
• High quality thermistor
• Stable
• High sensitivity
HTF3226LF Temperature and Humidity Sensor APPLICATIONS
• Printers
• Home Appliance
HTF3226LF Temperature and Humidity Sensor PERFORMANCE SPECS MAXIMUM RATINGS
Ratings | Symbol | Value | Unit |
Storage Temperature | Tstg | -40 to 85 | ℃ |
Storage Humidity | RHstg | 0 to 100 | % RH |
Supply Voltage (Peak) | Vs | 7 | Vdc |
Humidity Operating Range | RH | 0 to 99 | % RH |
Temperature Operating Range | Ta | -30 to 85 | ℃ |
HTF3226LF Temperature and Humidity Sensor ELECTRICAL CHARACTERISTICS
(Ta=25°C, Vs=5Vdc +/-5%, RL>100kΩ unless otherwise stated)
Humidity Characteristics | Symbol | Min | Typ | Max | Unit |
Humidity Measuring Range | RH | 1 | 100 | %RH | |
Relative Humidity Accuracy (0 to95% RH) | RH | +/-5 | +/-10 | %RH | |
Supply Voltage | Vs | 4.75 | 5.00 | 5.25 | Vdc |
Nominal Output @55%RH | Fout | 8670 | 8750 | 8830 | Hz |
Current consumption | Ic | 0.1 | mA | ||
| Temperature Coefficient (0 to 60°C) | Tcc | -0.2 | %RH/°C | ||
Average Sensitivity from33% to75%RH | ∆Fout/∆RH | -13 | -14 | -16 | Hz/%RH |
Recovery time after 150 hours of condensation | tr | 10 | s | ||
Humidity Hysteresis | +/-1 | %RH | |||
Long Term Stability | T | +/-0.5 | %RH/yr | ||
Time Constant (at 63% of signal, static) 33% to 76%RH | τ | 10 | s |
Temperature Characteristics | Symbol | Min | Typ | Max | Unit |
Nominal Resistance @25°C | R | 10 | kΩ | ||
Beta value: B25/100 | β | 3600 | 3730 | 3800 | |
Temperature Measuring Range | Ta | -30 | 80 | °C | |
Nominal Resistance Tolerance @25°C | RN | 2 | 3 | % | |
Beta Value Tolerance | β | 3 | % | ||
Response Time | τ | 10 | s |
