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Relative Temperature and Humidity Sensor - HTM2500/HTM2500LF

? Humidity Measuring Range: 1 ~ 99%RH
? Temperature Measuring Range: -40 ~ 85°C
? Relative Humidity Accuracy (10 to 95% RH): ±3 %RH
? Supply Voltage: 4.75 - 5.25Vdc
? Current consumption: 0.4mA
? Temperature Coefficient (10 to 50°C): +0.1%RH/°C
? Humidity Operating Range: 0 to 100 % RH
? Temperature Operating: -30 to 70 °C

Model Number: HTM2500/HTM2500LF
Data Sheet:

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Product Specification

HTM2500/HTM2500LF Relative Temperature and Humidity Sensor

? Hermetic Housing
? Humidity calibrated within +/-2% @55%RH
? Temperature measurement through NTC 10kOohms +/-3% direct output
? Small size product
? Typical 1 to 4 Volt DC output for 0 to 100%RH at 5Vdc

HTM2500LF Relative Temperature and Humidity Sensor DESCRIPTION
Based on the rugged HTS2010 humidity / temperature sensor, HTM2500 is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the module's humidity linear voltage output.

HTM2500LF Relative Temperature and Humidity Sensor FEATURES
? Full interchangeability
? High reliability and long term stability
? Not affected by water immersion
? Ratiometric to vlotage supply
? Suitable for 3 to 10 Vdc supply voltage
Humidity Sensor Specific Features
? Instantaneous de-saturation after long periods in saturation phase
? Fast response time
? High resistance to chemicals
? Patented solid polymer structures
Temperature Sensor Specific Features
? Stable
? High sensitivity

HTM2500LF Relative Temperature and Humidity Sensor APPLICATIONS
? Industrial
? Process control
? Hygrostat
? Data logger

HTM2500LF Relative Temperature and Humidity Sensor PERFORMANCE SPECS
MAXIMUM RATINGS

Ratings	Symbol	Value	Unit
Storage Temperature	Tstg	-40 to 85	°C
Storage Humidity	RHstg	0 to 100	% RH
Supply Voltage (Peak)	Vs	12	Vdc
Humidity Operating Range	RH	0 to 100	% RH
Temperature Operating	Ta	-30 to 70	°C

Peak conditions: less than 10% of the operating time

ELECTRICAL CHARACTERISTICS
(Ta=23°C, Vs=5Vdc +/-5%, RL>1M unless otherwise stated)

Humidity Characteristics	Symbol	Min	Typ	Max	Unit
Humidity Measuring Range	RH	1		99	%RH
Relative Humidity Accuracy (10 to 95% RH)	RH		+/-3	+/-5	%RH
Supply Voltage	V	4.75	5.00	5.25	Vdc
Nominal Output @55%RH (at 5Vdc)	Vout	2.42	2.48	2.54	V
Current consumption	Ic		0.4	0.4	mA
Temperature Coefficient (10 to 50°C)	Tcc		+0.1		%RH/°C
Average Sensitivity from 33% to 75%RH	△Vout/△RH		+25		mV/%RH
Sink Current Capability (RL=15kΩ)	Is			300	μA
Recovery time after 150 hours of condensation	tr		10		s
Humidity Hysteresis			+/-1.5		%RH
Long term stability	T		+/-0.5		%RH/yr
Time Constant (at 63% of signal, static) 33% to 76%RH	τ		5		s
Output Impedance	Z		70		Ω

(Ta=25°C)

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	-40		85	°C
Nominal Resistance Tolerance @25°C	RN		2	3	%
Beta Value Tolerance	β		3		%
Response Time	τ		10		s