High Accuracy RH/T Sensor - HTU31V

Product Specification

General Description：

    The HTU31 is one of the smallest and most accurate humidity sensors on the market. TE Connectivity precision engineering and 20+ years of experience in humidity and temperature combination sensors, enabled this new product with fast response time, precision measurement, low hysteresis, robustness to reflow assembly process and sustained performance even when exposed to extreme temperature [-40°to125℃]and humidity [0%RH to 100%RH] environments.

    HTU31 humidity & temperature sensor includes both digital (D) and analog (V) versions and combines multiple functions with an application-friendly operating supply voltage range from 3V to 5.5V.

    HTU31 sensor is available in small and large volumes to meet the everchanging demands of our customers.

 

Features：

• High Reliability and Robustness

• Fast Recovery after Saturation

• Fully Compatible with Reflow Process

• Fully Interchangeable without Calibration

• Serial Individual Marking for Traceability

• Lead Free

• Low Power Consumption

 

Applications：

• Home Appliance

• Medical

• Printers

• Humidifiers

• Automotive

• Meteorology

• Environmental Monitoring & Trackers

 

Performance Specifications：

Relative Humidity Specifications

V_dd = 5V 25℃

Characteristics	Condition	Value	Units	Notes /Conditions
Humidity Operating Range	Max1	0 to 100	%RH
Relative Humidity Accuracy	Typical	±2	%RH	Figure 1 Humidity Sensor Rating @25℃
Resolution	Typical	0.01	%RH	Table 11 Humidity and Temperature Conversion Parameters
Hysteresis	@25℃	±0.7	%RH
Response Time2	τ63%	5	s
Recovery Time after Condensation3	Typical	10	s
Long Term Drift4	Typical	<0.25	%RH / year

                                                   Table 1 Humidity Specifications

 

Temperature Specifications

V_dd = 5V 25℃

Characteristics	Condition	Value	Units	Notes /Conditions
Humidity Operating Range		-40 to 125	℃
Temperature Accuracy	Typical	±0.2	℃	Figure 2 Temperature Sensor Rating
Resolution	Typical	0.016	℃	Table 11 Humidity and Temperature Conversion Parameters
Response Time2	τ63%	10	s
Long Term Drift	Typical	0.04	℃ / year

                                                  Table 2 Temperature Specifications

 

¹ Cf. Figure 3 Humidity and Temperature Operating Range

² With 1m.s-1 air flow

³ Measured according to AFNOR standard NFX 15-113, with 3 m.s-1 air flow

⁴ Typical application in regular environmental variation within optimum measurement range

 

Humidity Sensor Rating

 

Temperature Sensor Rating