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. 709-5412
Mfr. Part No.AD22100KRZ
SGD9.56
Each
units
Temperature Analogue Analogue ±0.5°C Surface Mount 8 0 °C 0 → +100 °C +100 °C 4 V 6.5 V SOIC 5mm 1.5mm
RS Stock No. 709-2924
Mfr. Part No.AD590JH
SGD30.70
Each
units
Temperature Current - ±5°C Through Hole 3 -55 °C -55 → +150 °C +150 °C 4 V 30 V TO-52 5.84mm 3.81mm
RS Stock No. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
SGD44.26
Each
units
Humidity Sensor Analogue Analogue ±3.5%RH Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V dc 5.8 V dc SIP 21.66mm 2.03mm
RS Stock No. 709-2851
Mfr. Part No.TMP35GT9Z
SGD7.034
Each (In a Pack of 5)
units
Temperature Emitter Follower Voltage ±1°C Through Hole 3 +10 °C +10 → +125 °C +125 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 123-7352
Mfr. Part No.SHT35-DIS-B2.5kS
BrandSensirion
SGD15.53
Each
units
Temperature & Humidity Digital Serial-I2C ±0.2 °C, ±1.5%RH Surface Mount 8 -40 °C -40 to +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 177-5953
Mfr. Part No.HIH-4000-001
BrandHoneywell
SGD22.953
Each (In a Tube of 50)
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. 169-1840
Mfr. Part No.SHT35-DIS-B2.5kS
BrandSensirion
SGD6.731
Each (On a Reel of 2500)
units
Temperature & Humidity Digital Serial-I2C ±0.2 °C, ±1.5%RH Surface Mount 8 -40 °C -40 to +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 522-9335
Mfr. Part No.AD592ANZ
SGD11.72
Each
units
Temperature Current - ±1.5°C Through Hole 3 -25 °C -25 → +105 °C +105 °C 4 V 30 V TO-92 5.21mm 5.33mm
RS Stock No. 166-0935
Mfr. Part No.HTS221TR
SGD2.692
Each (On a Reel of 8000)
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. 146-2585
Mfr. Part No.SHT25
BrandSensirion
SGD11.078
Each (On a Reel of 400)
units
Temperature & Humidity Digital Serial-I2C ±1.8%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. 162-4753
Mfr. Part No.LM70CIMM-3/NOPB
SGD1.785
Each (On a Reel of 1000)
units
Temperature Digital Serial-Microwire, Serial-SPI ±2°C Surface Mount 8 -55 °C -55 to +150 °C +150 °C 2.65 V 5.5 V MSOP 3mm 0.86mm
RS Stock No. 727-6226
Mfr. Part No.SHT25
BrandSensirion
SGD20.79
Each
units
Temperature & Humidity Digital Serial-I2C ±1.8%RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 786-3378
Mfr. Part No.ADT7420UCPZ-R2
SGD11.46
Each
units
Temperature Open Drain Serial-I2C ±0.25°C Surface Mount 16 -40 °C -40 → +150 °C +150 °C 2.7 V 5.5 V LFCSP 4.1mm 0.75mm
RS Stock No. 912-9961
Mfr. Part No.ADT7420UCPZ-R2
SGD8.304
Each (On a Reel of 250)
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. 534-3699
Mfr. Part No.LM70CIMM-3/NOPB
SGD4.48
Each
units
Temperature Digital Serial-Microwire, Serial-SPI ±2°C Surface Mount 8 -55 °C -55 → +150 °C +150 °C 2.65 V 5.5 V MSOP 3mm 0.86mm
RS Stock No. 110-6598
Mfr. Part No.HTS221TR
SGD6.025
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. 169-9921
Mfr. Part No.HYT271
SGD34.67
Each (In a Tray of 50)
units
Temperature & Humidity Digital Serial-I2C ±0.2 K, ±1.8% Through Hole 4 -40 °C -40 to +125 °C +125 °C 2.7 V 5.5 V - 5.1mm 10.2mm
RS Stock No. 876-5061
Mfr. Part No.SHT31-DIS-B
BrandSensirion
SGD7.21
Each
units
Temperature & Humidity Digital Serial-I2C ±0.3 °C, ±2%RH Surface Mount 8 -40 °C -40 to +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 922-4763
Mfr. Part No.TMP102AIDRLT
SGD1.482
Each (On a Reel of 250)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.4 V 3.6 V SOT-553 1.6mm 0.55mm
RS Stock No. 162-4755
Mfr. Part No.LM75BIMM-3/NOPB
SGD1.481
Each (On a Reel of 1000)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 3 V 5.5 V MSOP 3mm 0.86mm