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Frequency Output Temperature and Humidity Sensor - HTF3226LF

• 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

Model Number: HTF3226LF
Data Sheet:

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Product Specification

HTF3226LF Temperature and Humidity Sensor DESCRIPTION

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