Temperature & Humidity Sensor ICs

Temperature sensor ICs are components that directly translate physical temperature into digital information. Likewise, humidity sensor ICs can measure atmospheric moisture levels and translate that into digital information. As such, temperature and humidity sensor ICs are essential for environmental monitoring in and around sensitive electronic equipment.

These capabilities make temperature and humidity sensor ICs suitable for several applications, such as to maintain environmental conditions in laboratory test and measurement. They might also be used to trigger a shut-down of equipment that might be compromised by over-heat, or moisture exposure such as condensation.

The RS components offer a wide range of temperature sensor and humidity sensor devices from trusted brands, suitable for a variety of applications and calibrations.

Types of Temperature Sensor

  • Thermostats and thermocouples are temperature sensors which measure heat generation via voltage output. They are typically robust and inexpensive and can be used over a wide range of temperatures.
  • PT100 sensors measure the resistance deviation of the medium to determine its temperature and are sometimes called resistance temperature detectors, or RTDs. These sensors are known for their high accuracy and reliability.
  • Infrared temperature sensors and thermographic cameras convert thermal radiation to an electrical signal to monitor temperature levels. These are ideal for circumstances where contact sensors cannot be used.

Types of Humidity Sensor

  • Capacitive humidity sensors use humidity-dependent condensers to determine moisture output. These sensors are often used to measure the relative humidity in air conditioning units and HVAC systems.
  • Resistive humidity sensors measure the electrical variation in conductive polymers and treated substrates. Low cost and small of size, these sensors are used in a variety of applications and appliances.
  • Thermal conductor humidity sensors calibrate the deviation between the thermal conductivity of dry air versus moist air. Due to their long-term durability and high-temperature resistance, these sensors are often used in clothes dryers and ovens.

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Description Price Sensor Function Output Type Interface Type Accuracy Mounting Type Pin Count Minimum Operating Temperature Operating Temperature Range Maximum Operating Temperature Minimum Operating Supply Voltage Maximum Operating Supply Voltage Package Type Length Height
RS Stock No. 739-8036
Mfr. Part No.TMP103AYFFT
kr 13,28
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 4 -55 °C -55 to +150 °C +150 °C 1.4 V 3.6 V DSBGA 0.79mm 0.33mm
RS Stock No. 121-8002
Mfr. Part No.MK33-W
kr 451,38
Each
Units
- - - - Through Hole 2 +40 °C 40 to +190 °C +190 °C - 12 V - 10.8mm 0.8mm
RS Stock No. 504-5632
Mfr. Part No.LM75BIM-3/NOPB
kr 20,298
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 3 V 5.5 V SOIC 4.9mm 1.45mm
RS Stock No. 865-2283
Mfr. Part No.Si7006-A20-IM1
kr 19,407
Each (In a Pack of 3)
Units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±5%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS Stock No. 121-9338
Mfr. Part No.LM35DZ/LFT1
kr 6,537
Each (On a Reel of 2000)
Units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C -55 to +150 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 121-8979
Mfr. Part No.LM73CIMK-0/NOPB
kr 10,598
Each (On a Reel of 1000)
Units
Temperature Digital Serial-I2C, SMBus ±2.5°C Surface Mount 6 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V TSOT 2.97mm 0.87mm
RS Stock No. 639-4020
Mfr. Part No.LM73CIMK-0/NOPB
kr 24,852
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±2.5°C Surface Mount 6 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V TSOT 2.97mm 0.87mm
RS Stock No. 169-1858
Mfr. Part No.SHT21P
BrandSensirion
kr 36,079
Each (On a Reel of 400)
Units
Temperature & Humidity PWM Digital PWM ±0.3 °C, ±2%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 165-9068
Mfr. Part No.DS1620+
kr 60,504
Each (In a Tube of 50)
Units
Temperature Switch Digital SPI ±2°C Through Hole 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V PDIP 9.91mm 4.45mm
RS Stock No. 159-4685
Mfr. Part No.LM335Z
kr 4,37
Each
Units
Temperature Voltage Analogue ±5°C Through Hole 3 -40 °C -40 to +100 °C +100 °C 2.92 V 3.04 V TO-92 5mm 5.03mm
RS Stock No. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
kr 170,76
Each
Units
Humidity Sensor Analogue Analogue ±3.5%RH Through Hole 3 -40 °C -40 to +85 °C +85 °C 4 V 5.8 V SIP 21.66mm 2.03mm
RS Stock No. 540-5258
Mfr. Part No.DS1620+
kr 69,59
Each
Units
Temperature Switch Digital SPI ±2°C Through Hole 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V PDIP 9.91mm 4.45mm
RS Stock No. 523-7443
Mfr. Part No.AD22105ARZ
kr 36,39
Each
Units
Temperature Switch Open Collector - ±0.5°C Surface Mount 8 -50 °C -50 to +150 °C +150 °C 2.7 V 7 V SOIC 5mm 1.5mm
RS Stock No. 811-5595
Mfr. Part No.LM35DZ/LFT1
kr 10,537
Each (In a Pack of 10)
Units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C 0 to 100 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 110-6598
Mfr. Part No.HTS221TR
kr 37,51
Each (In a Pack of 2)
Units
Temperature & Humidity Digital Analogue ± 0.5 °C, ± 3.5% Surface Mount 6 -40 °C -40 to +120 °C +120 °C 1.7 V 3.6 V HLGA 2mm 0.9mm
RS Stock No. 121-8585
Mfr. Part No.LM75BIM-3/NOPB
kr 16,679
Each (In a Tube of 95)
Units
- - - - - - - - - - - - - -
RS Stock No. 786-3378
Mfr. Part No.ADT7420UCPZ-R2
kr 75,58
Each
Units
Temperature Open Drain Serial-I2C ±0.25°C Surface Mount 16 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V LFCSP 4.1mm 0.75mm
RS Stock No. 668-7329
Mfr. Part No.TCN75AVUA
BrandMicrochip
kr 6,436
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 912-2856
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
kr 2,208
Each (In a Bag of 1000)
Units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 to +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 824-6967
Mfr. Part No.LM75BIMX-3/NOPB
kr 18,166
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V SOIC 5mm 1.5mm