Temperature Sensors & Humidity Sensors

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

These capabilities make temperature and humidity sensors suitable for a number of 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 range offers temperature sensors and humidity sensors 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 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. 911-5524
Mfr. Part No.MCP9700A-E/TO
BrandMicrochip
R 3.782
Each (In a Bag of 1000)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.3 V 5.5 V TO-92 4.71mm 4.62mm
RS stock no. 403-838
Mfr. Part No.MCP9700A-E/TO
BrandMicrochip
R 5.175
Each (In a Pack of 20)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.3 V 5.5 V TO-92 4.71mm 4.62mm
RS stock no. 169-1839
Mfr. Part No.SHT20
BrandSensirion
R 37.485
Each (On a Reel of 1500)
units
Temperature & Humidity Digital Serial-I2C ±3 (Humidity) %RH, ±3 (Temperature) °C Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS stock no. 912-2856
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
R 3.782
Each (In a Bag of 1000)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 → +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS stock no. 911-5599
Mfr. Part No.TC74A0-3.3VAT
BrandMicrochip
R 17.906
Each (In a Tube of 50)
units
Temperature Digital Serial-I2C, SMBus ±3°C Through Hole 5 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-220 10.54mm 15.57mm
RS stock no. 121-8002
Mfr. Part No.MK33-W
R 688.39
Each
units
- - - - Through Hole 2 +40 °C 40 → +190 °C +190 °C - 12 V - 10.8mm 0.8mm
RS stock no. 523-0098
Mfr. Part No.AD22100ATZ
R 118.75
Each
units
Temperature Analogue Analogue ±1°C Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V 6.5 V TO-92 5.21mm 5.33mm
RS stock no. 893-7247
Mfr. Part No.HPP805A031
R 758.50
Each
units
Humidity Sensor Voltage Analogue ±5%RH Through Hole 3 -40 °C -40 → +60 °C +60 °C 3 V 10 V dc - 11.4mm 59.5mm
RS stock no. 121-8021
Mfr. Part No.Tsic 301 TO92
R 216.35
Each
units
Temperature Analogue Analogue ±0.3°C Through Hole 3 -50 °C -50 → +150 °C +150 °C 3 V 5.5 V TO-92 4.77mm 4.01mm
RS stock no. 738-7051
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
R 5.189
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 → +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS stock no. 162-7131
Mfr. Part No.TMP275AID
R 31.884
Each (In a Tube of 75)
units
Temperature Digital Serial-I2C, SMBus ±0.2°C Surface Mount 8 -55 °C -55 → +127 °C +127 °C 2.7 V 5.5 V SOIC 4.9mm 1.58mm
RS stock no. 123-7351
Mfr. Part No.SHT20
BrandSensirion
R 72.475
Each (In a Pack of 2)
units
Temperature & Humidity Digital Serial-I2C ±3 (Humidity) %RH, ±3 (Temperature) °C Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS stock no. 169-9923
Mfr. Part No.MK33-W
R 566.954
Each (In a Tray of 50)
units
- - - - Through Hole 2 +40 °C 40 → +190 °C +190 °C - 12 V - 10.8mm 0.8mm
RS stock no. 169-9937
Mfr. Part No.TSIC 301 TO92
R 108.398
Each (In a Bag of 50)
units
Temperature Analogue Analogue ±0.3°C Through Hole 3 -50 °C -50 → +150 °C +150 °C 3 V 5.5 V TO-92 4.77mm 4.01mm
RS stock no. 161-4580
Mfr. Part No.HPP805A031
R 550.149
Each (In a Box of 150)
units
Humidity Sensor Voltage Analogue ±5%RH Through Hole 3 -40 °C -40 → +60 °C +60 °C 3 V 10 V dc - 11.4mm 59.5mm
RS stock no. 111-1146
Mfr. Part No.AD22100ATZ
R 89.53
Each (In a Tray of 100)
units
Temperature Analogue Analogue ±1°C Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V 6.5 V TO-92 5.21mm 5.33mm
RS stock no. 774-7863
Mfr. Part No.TC74A0-3.3VAT
BrandMicrochip
R 21.73
Each (In a Bag of 4)
units
Temperature Digital Serial-I2C, SMBus ±3°C Through Hole 5 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-220 10.54mm 15.57mm
RS stock no. 662-4491
Mfr. Part No.TMP275AID
R 54.13
Each
units
Temperature Digital Serial-I2C, SMBus ±0.2°C Surface Mount 8 -55 °C -55 → +127 °C +127 °C 2.7 V 5.5 V SOIC 4.9mm 1.58mm
RS stock no. 540-2849
Mfr. Part No.DS18S20+
R 54.32
Each
units
Temperature Digital 1-Wire ±0.5°C Through Hole 3 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V TO-92 4.95mm 4.95mm
RS stock no. 169-1840
Mfr. Part No.SHT35-DIS-B
BrandSensirion
R 82.993
Each (On a Reel of 2500)
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) °C, ±1.5 (Humidity) %RH Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm