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Resistive RH Sensor - SYH-2R

• Wide range of applications
• Excellent Reliability
• Water proof
• RoHS Compliant
• Interchangeability

Model Number: SYH-2R
Data Sheet:

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Product Specification

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 (V_RMS)		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
LTS	-20℃, 1,000 hrs
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.