Board Mount Humidity Sensors

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SHT4x Digital Humidity & Temperature Sensors

Sensirion SHT4x Digital Humidity and Temperature Sensors provide constant temperature accuracy over a large measurement range. This 4th Generation sensor features ultra-low power consumption and comes in a small QFN package that measures 1.5mm x 1.5mm x 0.5mm. The fully calibrated sensor offers linearized digital output, NIST traceability, and I²C fast mode plus. It is reflow solderable and operational in condensing environments. Sensirion SHT4x Digital Humidity and Temperature Sensor has a 1.08V to 3.6V supply voltage range, 80nA idle current, and an operating range of 0% to 100% RH, -40°C to +125°C. Tape-and-reel packaging, combined with suitability for standard SMD assembly processes, makes the SHT4x ideal for high-volume applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	RH Range	RH Accuracy	Mounting Style	Output Type	Interface Type	Resolution	Full Temp Accuracy	Operating Supply Current	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Package / Case	Packaging
Board Mount Humidity Sensors SHT40-AD1P-R2, 2.5KPCSHum. & Temp. IC with cover SHT40-AD1P-R2 Sensirion 1: S/13.00 2,648In Stock 12,500On Order New Product	Mfr. Part # SHT40-AD1P-R2 Mouser Part # 403-SHT40-AD1P-R2 New Product	Sensirion	Board Mount Humidity Sensors SHT40-AD1P-R2, 2.5KPCSHum. & Temp. IC with cover Learn More about Sensirion sht4x humidity temperature sensors	Datasheet	2,648In Stock 12,500On Order On Order Ship Dates Mfr. #: SHT40-AD1P-R2 Stock: 2,648 Can Ship Immediately On Order: 7,500 Expected 10/21/2026 5,000 Expected 1/13/2027 Factory Lead-Time: 8 Weeks	Cut Tape S/13.00 S/10.94 S/10.16 S/8.56 Reel S/6.11 View S/7.98 S/6.73 S/6.31 S/5.88	Min.: 1 Mult.: 1 : 2,500	0 % to 100 %	1.8 %	SMD/SMT	Digital	I2C		0.2 C	80 nA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel, Cut Tape
Board Mount Humidity Sensors SHT41-AD1P-R2, 2.5KPCSHum. & Temp. IC with cover SHT41-AD1P-R2 Sensirion 1: S/17.94 1,337In Stock 2,500Expected 12/4/2026 New Product	Mfr. Part # SHT41-AD1P-R2 Mouser Part # 403-SHT41-AD1P-R2 New Product	Sensirion	Board Mount Humidity Sensors SHT41-AD1P-R2, 2.5KPCSHum. & Temp. IC with cover Learn More about Sensirion sht4x humidity temperature sensors	Datasheet	1,337In Stock 2,500Expected 12/4/2026	Cut Tape S/17.94 S/15.14 S/14.05 S/12.77 View Reel S/8.64 S/11.87 S/11.02 S/9.38 S/9.07 S/8.64 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	0 % to 100 %	1.8 %	SMD/SMT	Digital	I2C		0.2 C	400 nA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x46 I2C address. SHT40-CD1B-R3 Sensirion 1: S/7.32 5,827In Stock 10,000Expected 11/25/2026	Mfr. Part # SHT40-CD1B-R3 Mouser Part # 403-SHT40-CD1B-R3	Sensirion	Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x46 I2C address. Learn More about Sensirion sht4x digital sensor	Datasheet	5,827In Stock 10,000Expected 11/25/2026	Cut Tape S/7.32 S/6.50 S/5.80 S/5.57 View Reel S/4.24 S/5.33 S/4.79 S/4.59 S/4.48 S/4.24 S/4.24 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	0 % to 100 %	+/- 1 %	SMD/SMT	Digital	I2C	16 bit	+/- 0.1 C	320 uA	1.08 V	3.6 V	- 40 C	+ 125 C	1.5 mm x 1.5 mm	Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors RH/ T Sensor SHT40-AD1B-R2 Sensirion 1: S/7.55 53,274In Stock 40,000Expected 11/4/2026	Mfr. Part # SHT40-AD1B-R2 Mouser Part # 403-SHT40-AD1B-R2	Sensirion	Board Mount Humidity Sensors RH/ T Sensor Learn More about Sensirion sht4x digital sensor	Datasheet	53,274In Stock 40,000Expected 11/4/2026	Cut Tape S/7.55 S/6.73 S/6.03 S/5.76 Reel S/4.36 View S/5.45 S/4.87 S/4.67 S/4.24 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	0 % to 100 %	+/- 1.8 %	SMD/SMT	Digital	I2C	0.01 %	+/- 0.1 C	350 uA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors RH/ T Sensor SHT40-AD1B-R3 Sensirion 1: S/7.55 19,186In Stock 20,000Expected 12/7/2026	Mfr. Part # SHT40-AD1B-R3 Mouser Part # 403-SHT40-AD1B-R3	Sensirion	Board Mount Humidity Sensors RH/ T Sensor Learn More about Sensirion sht4x digital sensor	Datasheet	19,186In Stock 20,000Expected 12/7/2026	Cut Tape S/7.55 S/6.73 S/6.03 S/5.76 View Reel S/4.32 S/5.53 S/4.87 S/4.67 S/4.55 S/4.32 S/4.32 MouseReel Available	Min.: 1 Mult.: 1 : 10,000														Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors Ultra-High Accuracy Digital Humidity & Temperature Sensor with 1.0%RH and 0.1C tolerances and 1.08 ... 3.6 V supply voltage. Integrated high-power heater, on-chip protection options availabel, NIST tracable. SHT45-AD1B-R2 Sensirion 1: S/22.42 9,874In Stock 30,000On Order	Mfr. Part # SHT45-AD1B-R2 Mouser Part # 403-SHT45-AD1B-R2	Sensirion	Board Mount Humidity Sensors Ultra-High Accuracy Digital Humidity & Temperature Sensor with 1.0%RH and 0.1C tolerances and 1.08 ... 3.6 V supply voltage. Integrated high-power heater, on-chip protection options availabel, NIST tracable. Learn More about Sensirion sht4x digital sensor	Datasheet	9,874In Stock 30,000On Order On Order Ship Dates Mfr. #: SHT45-AD1B-R2 Stock: 9,874 Can Ship Immediately On Order: 12,500 Expected 11/4/2026 17,500 Expected 12/21/2026 Factory Lead-Time: 8 Weeks	Cut Tape S/22.42 S/20.16 S/19.31 S/18.33 View Reel S/14.40 S/17.63 S/16.89 S/15.41 S/14.95 S/14.40 MouseReel Available	Min.: 1 Mult.: 1 : 2,500														Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors Ultra-High Accuracy Digital Humidity & Temperature Sensor with 1.0%RH and 0.1C tolerances and 1.08 ... 3.6 V supply voltage. Integrated high-power heater, on-chip protection options availabel, NIST tracable. SHT45-AD1B-R3 Sensirion 1: S/30.13 10,251In Stock	Mfr. Part # SHT45-AD1B-R3 Mouser Part # 403-SHT45-AD1B-R3	Sensirion	Board Mount Humidity Sensors Ultra-High Accuracy Digital Humidity & Temperature Sensor with 1.0%RH and 0.1C tolerances and 1.08 ... 3.6 V supply voltage. Integrated high-power heater, on-chip protection options availabel, NIST tracable. Learn More about Sensirion sht4x digital sensor	Datasheet	10,251In Stock	Cut Tape S/30.13 S/25.42 S/23.63 S/21.45 View Reel S/15.22 S/19.93 S/18.53 S/16.19 S/15.57 S/15.22 S/15.22 MouseReel Available	Min.: 1 Mult.: 1 : 10,000														Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor SHT41-AD1B-R2 Sensirion 1: S/11.48 504In Stock 7,500Expected 12/23/2026	Mfr. Part # SHT41-AD1B-R2 Mouser Part # 403-SHT41-AD1B-R2	Sensirion	Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor Learn More about Sensirion sht4x digital sensor	Datasheet	504In Stock 7,500Expected 12/23/2026	Cut Tape S/11.48 S/10.28 S/9.26 S/8.87 Reel S/7.01 View S/8.52 S/7.82 S/7.32 S/6.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		+/- 1.8 %	SMD/SMT	Digital	I2C	16 bit	+/- 0.2 C	100 nA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors 3-point calibrated, ISO17025 certified digital temperature sensor with calibration certificate; optimized for cold and frozen chain monitoring. SHT43-ADCB-R2 Sensirion 1: S/26.70 17,500On Order	Mfr. Part # SHT43-ADCB-R2 Mouser Part # 403-SHT43-ADCB-R2	Sensirion	Board Mount Humidity Sensors 3-point calibrated, ISO17025 certified digital temperature sensor with calibration certificate; optimized for cold and frozen chain monitoring. Learn More about Sensirion sht4x digital sensor	Datasheet	17,500On Order On Order Ship Dates Mfr. #: SHT43-ADCB-R2 Stock: 0 On Order: 7,500 Expected 11/25/2026 10,000 Expected 12/16/2026 Factory Lead-Time: 10 Weeks	Cut Tape S/26.70 S/24.06 S/23.08 S/21.91 View Reel S/17.01 S/21.10 S/19.77 S/17.79 S/17.36 S/17.01	Min.: 1 Mult.: 1 : 2,500		1.8 %	SMD/SMT	Digital	I2C	16 bit		60 mA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel, Cut Tape
Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x45 I2C address. SHT40-BD1B-R2 Sensirion 1: S/7.32 12,447On Order	Mfr. Part # SHT40-BD1B-R2 Mouser Part # 403-SHT40-BD1B-R2	Sensirion	Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x45 I2C address. Learn More about Sensirion sht4x digital sensor	Datasheet	12,447On Order On Order Ship Dates Mfr. #: SHT40-BD1B-R2 Stock: 0 On Order: 4,947 Expected 11/18/2026 7,500 Expected 12/31/2026 Factory Lead-Time: 8 Weeks	Cut Tape S/7.32 S/6.50 S/5.80 S/5.57 Reel S/4.44 View S/5.33 S/4.79 S/4.59 S/4.20 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	0 % to 100 %	+/- 1 %	SMD/SMT	Digital	I2C	16 bit	+/- 0.1 C	320 uA	1.08 V	3.6 V	- 40 C	+ 125 C	1.5 mm x 1.5 mm	Reel, Cut Tape, MouseReel
Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x45 I2C address. SHT40-BD1B-R3 Sensirion 10,000: S/4.28 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # SHT40-BD1B-R3 Mouser Part # 403-SHT40-BD1B-R3	Sensirion	Board Mount Humidity Sensors +/-1.8%RH/+/-0.2C, 4th generation, digital (I2C) humidity and temperature sensor with 0x45 I2C address. Learn More about Sensirion sht4x digital sensor	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel S/4.28	Min.: 10,000 Mult.: 10,000 : 10,000	0 % to 100 %	+/- 1 %	SMD/SMT	Digital	I2C	16 bit	+/- 0.1 C	320 uA	1.08 V	3.6 V	- 40 C	+ 125 C	1.5 mm x 1.5 mm	Reel
Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor - Bulk SHT41-AD1B-R3 Sensirion 10,000: S/7.24 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # SHT41-AD1B-R3 Mouser Part # 403-SHT41-AD1B-R3	Sensirion	Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor - Bulk Learn More about Sensirion sht4x digital sensor	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel S/7.24	Min.: 10,000 Mult.: 10,000 : 10,000		+/- 1.8 %	SMD/SMT	Digital	I2C	16 bit	+/- 0.2 C	100 nA	1.08 V	3.6 V	- 40 C	+ 125 C	DFN-4	Reel

SHT4x Digital Humidity & Temperature Sensors

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