Temperature Humidity Sensor Module - HTF3223LF

• Size and connector type match existing humidity modules.
• Stable, linear proportional frequency output from 10 to 95% RH.
• Calibrated within +/- 5% RH @ 55% RH.
• Optional 10 K +/- 3% NTC temperature sensor (HTF 3223)
• Stable characteristics with temperature.
• High reliability and long term stability

  • Model Number: HTF3223LF
  • Data Sheet: Date Sheet File
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  • Temperature Humidity Sensor Module
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Product Specification

Temperature Humidity Sensor Module  HTF3223LF Description
Based on the rugged HS1101LF humidity sensor, HTF3223LF 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. 

Temperature Humidity Sensor MAIN FEATURES
• Size and connector type match existing humidity modules.
• Stable, linear proportional frequency output from 10 to 95% RH.
• Calibrated within +/- 5% RH @ 55% RH.
• Optional 10 K +/- 3% NTC temperature sensor (HTF 3223)
• Stable 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

Temperature Humidity Sensor HTF3223LF MAXIMUM RATINGS

Ratings

Symbol

Value

Unit

Storage Temperature

Tstg

-40 to 85

°C

Storage Humidity Range

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 80

°C


Temperature Humidity Sensor HTF3223LF CHARACTERISTICS

Humidity sensor (Ta = 25°C, Vs = 5.0 Vdc +/- 5%, R L > 100 KΩ unless otherwise stated)

Characteristics

Symbol

Min.

Typ.

Max.

Unit.

Humidity metrology range

RH

10


95

% RH

Relative Humidity accuracy (10 to 95 % RH)

RH


+/- 5

+/- 10

% RH

Voltage supply

Vs

4.75

5.0

5.25

VdC

Nominal output @ RH = 55 %

Fout

8670

8750

8830

Hz

Current consumption

 Ic



0.1

mA

Temperature coefficient (0 to 60 °C)

Tcc


+/- 0.1


% RH/°C

Averaged Sensitivity from 33 % to 75 % RH

∆F out /∆RH

-16

- 18

-19

Hz/% RH

Sink current capability

Is


100


µA

Recovery time after 150 hours of condensation

t


10


s

Humidity Hysteresis



+/-1.5


% RH

Long term stability



0.5


% RH/yr

Response time (33 to 76% RH  static @63 %)

τ


10


s


Temperature sensor (Ta = 25°C)

Characteristics

Symbol

Min.

Typ.

Max.

Unit.

Nominal resistance @ 25°C



10


Beta value : B25/100

B

3600

3730

3800


Temperature measuring range

Ta

- 30


80

°C

Nominal Resistance Tolerance

Rn


2

3

%

B value tolerance

B


3


%

Response Time

τ


10


s


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