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HTU21P(F) Humidity & Temperature Sensor
Brand: American Sensor Technologies Inc
HTU21P(F) is a new humidity and temperature sensor by MEAS.
Setting new standards in terms of size and intelligence, it is embedded in a reflow solderable Dual Flat No leads (DFN) package of 3 x 3 x 0.9 mm foot print. This sensor provides calibrated, linearized signals in Analog pulse width modulated (PWM) format.
HTU21P(F) humidity sensors are dedicated humidity and temperature plug and play transducers for OEM applications where reliable and accurate measurements are needed. These low power sensors are designed for high volume and cost sensitive applications with tight space constraints.
Features- Full interchangeability with no calibration required in standard conditions
- Instantaneous desaturation after long periods in saturation phase
- Compatible with automatized assembly processes, including Pb free and reflow processes
- Individual marking for compliance to stringent traceability requirements
1 - 8 of 8 Part Numbers
HTU20D
- Accuracy - ± 5% RH Tolerance at 55% RH
- Output - Digital, I²C Protocol
- Filter - Without Embedded PTFE Filter
HTU20DF
- Accuracy - ± 5% RH Tolerance at 55% RH
- Output - Digital, I²C Protocol
- Filter - With Embedded PTFE Filter
HTU20P
- Accuracy - ± 5% RH Tolerance at 55% RH
- Output - PWM Interface, Analog Output
- Filter - Without Embedded PTFE Filter
HTU20PF
- Accuracy - ± 5% RH Tolerance at 55% RH
- Output - PWM Interface, Analog Output
- Filter - With Embedded PTFE Filter
HTU21D
- Accuracy - ± 3% RH Tolerance at 55% RH
- Output - Digital, I²C Protocol
- Filter - Without Embedded PTFE Filter
HTU21DF
- Accuracy - ± 3% RH Tolerance at 55% RH
- Output - Digital, I²C Protocol
- Filter - With Embedded PTFE Filter
HTU21P
- Accuracy - ± 3% RH Tolerance at 55% RH
- Output - PWM Interface, Analog Output
- Filter - Without Embedded PTFE Filter
HTU21PF
- Accuracy - ± 3% RH Tolerance at 55% RH
- Output - PWM Interface, Analog Output
- Filter - With Embedded PTFE Filter
1 - 8 of 8 Part Numbers
Specifications
Accuracy
- ± 0.3° C (± 0.54° F) Typical - Temperature Accuracy at 25° C (77° F)
Approvals & Certifications
- RoHS
Communication
- I²C
- PWM Interface, Analog Output
Current
- -10 to 10 mA - Input Current on Any Pin
- 14 µA, Max.
- 5 µA Typical - Current Consumption
Dissipation
- 15 µW Typical
- 50 µW, Max.
Environmental Protection
- IP67
Frequency
- 108 to 132 Hz - PWM Frequency, 120 Hz Typical
- 2 Hz - Measurement Frequency
Humidity
- ± 2 % Relative Humidity - Relative Humidity Accuracy at 25° C (77° F) (10 to 95 % Relative Humidity)
- 0 to 100 % Relative Humidity
Hysteresis
- ± 1 % Relative Humidity Typical - Humidity Hysteresis
Operating Temperature
- -40° to 125° C (-40° to 257° F)
Recovery Time
- Relative Humidity: 10 seconds Typical after 150 Hours of Condensation
Resolution
- 0.01° C Typical - for 12-bits
- 0.04 % Relative Humidity Typical - for 10-bits
Response Time
- Relative Humidity: 5 seconds Typical, 10 seconds, Max.
- Temperature: 10 seconds Typical (At 63 % of Signal) from 15° to 45° C (59° to 113° F) at 1 m/sec Air Flow
Storage Temperature
- -40° to 125° C (-40° to 257° F)
Supply Voltage
- -0.3 to 3.6 Vdc - Vdd to Ground
- -0.3 to Vdd + 0.3 Vdc - Digital I/O Pins (DATA / SCK) to Vdd
- 1.5-3.6 Vdc, 3.0 Vdc Typical
- 3.8 Vdc - Peak
Temperature Effect
- -0.15 % Relative Humidity/°C - Temperature Coefficient from 0° to 80° C (32° to 176° F)
Thermal Drift
- 0.04° C/Year - Long Term Drift
- -0.07 to -0.12 Hz/°C - Temperature Drift of PWM Frequency
- 0.5 % Relative Humidity/Year - Long Term Drift
Tolerance
- ± 3 % Relative Humidity Tolerance at 55 % Relative Humidity - Humidity Accuracy
- ± 5 % Relative Humidity Tolerance at 55 % Relative Humidity - Humidity Accuracy
- Automotive: Defogging, HVAC
- Home Appliance
- Medical
- Printers
- Humidifier