Resistive RH Sensor
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Price
Price on request ≥1piece
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Model Number
SYH-2R -
Data Sheet
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Package
Original packaging -
Specs
SYH-2R -
Quantity
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Product Description
Product Summary：
Industrial grade resistance type humidity sensor: SYH-2R offers cost effective and convenient humidity measurement.
While maintaining the attractive features such as no-calibration requirement and high interchangeability of resistive type humidity sensor: SYH-1, SYH-2R widens the scope of applications to home appliances, HVAC, and automotive.
Coated with patented polymer, SYH-2R can be used in demanding environments (-20°C~85°C) with frequent condensing and chemical vapors.
SYH-2R can be directly connected to µ-com with ADC or RFC converting resistance changes to either voltage or frequency. It can also be modularized to voltage output with oscillator.
Features：
• Wide range of applications
• Excellent Reliability
• Water proof
• RoHS Compliant
• Interchangeability
Application：
• Energy Saving HVAC Control
• Air Conditioning, Refrigeration, IAQ monitoring, Vent Fans, Home Appliances, Humi /Dehumidifiers
• Process Control & Instrumentations
• Medical Instruments, Handheld Devices, Weather Stations, Food Processing, Printers, RFID
Dimensions：
Sensor Performance：
Electrical Characteristics
|
|
Min |
Spec |
Max |
|
Rated voltage (VRMS) |
|
1 |
5 |
|
Rated power (mW) |
|
0.26 |
|
|
Standard characteristics (㏀) |
|
33 |
|
|
Operating temperature (℃) |
-20 |
|
85 |
|
Operating humidity (%RH) |
10 |
|
95 |
|
Operating Frequency (kHz) |
0.1 |
|
10 |
|
Storage temperature (℃) |
-20 |
|
85 |
|
Storage humidity (%RH) |
|
|
95 |
|
Accuracy (%RH) 1 |
-3 |
|
3 |
|
Hysteresis (%RH) |
-2 |
|
2 |
|
Response time (T80, sec.) 2 |
|
|
45 |
|
Temperature coefficient(%RH/℃) |
|
-0.5 |
|
1. Accuracies measured at 25℃, 60%RH, 1.0VRMS, 1kHz
2. Measured at 25℃, 1m/sec airflow for achieving 80% of step from 30%RH to 90%RH
Reliability
|
Test |
Condition |
|
HTS |
85℃, 1,000 hrs |
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LTS |
-20℃, 1,000 hrs |
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THB |
85℃, 85%RH,1,000 hrs, Bias |
|
HC |
30↔90%RH, 25℃, 100 times |
|
TC |
-20↔85℃, 100 times |
|
Organic solvent |
Benzene, Xylene, Toluene, 300hrs |
|
M/C(drop) |
100㎝ drop, 3 times |
|
Vibration |
X-Y-Z, 10~55Hz, 2hrs |
|
Soldering heat |
260±5℃, 3 sec. |
|
Tensile |
500g(4.9N), 10 sec. |
※ Pass Criteria
1. The Resistance Characteristics change from the initial value of each test sample should be less than ±5%RH at 25℃, 60%RH
2. No extraordinary changes of the sensor i.e. Electrode migration, polymer evaporation, color, breakdown, crack etc.