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. 865-2328
Mfr. Part No.Si7021-A20-GM1
R 52.177
Each (In a Pack of 3)
units
Temperature & Humidity Digital Serial-I2C ±0.4 °C, ±3 %RH Surface Mount 6 -40 °C -40 → +85 °C +85 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS stock no. 169-0083
Mfr. Part No.SI7006-A20-IM1
R 44.01
Each (On a Tape of 100)
units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±5 %RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS stock no. 876-5067
Mfr. Part No.SHT31-ARP-B
BrandSensirion
R 86.92
Each
units
Temperature & Humidity Voltage Analogue ±0.3 °C, ±2 %RH Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS stock no. 146-2585
Mfr. Part No.SHT25
BrandSensirion
R 105.055
Each (On a Reel of 400)
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. 865-2283
Mfr. Part No.Si7006-A20-IM1
R 34.427
Each (In a Pack of 3)
units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±5 %RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS stock no. 727-6226
Mfr. Part No.SHT25
BrandSensirion
R 161.20
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. 169-1862
Mfr. Part No.SHT31-ARP-B
BrandSensirion
R 43.771
Each (On a Reel of 2500)
units
Temperature & Humidity Voltage Analogue ±0.3 °C, ±2 %RH Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS stock no. 912-8794
Mfr. Part No.TMP36GT9Z
R 15.619
Each (In a Bag of 100)
units
Temperature Emitter Follower Voltage ±3°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
RS stock no. 427-351
Mfr. Part No.TMP36GT9Z
R 21.426
Each (In a Pack of 5)
units
Temperature Emitter Follower Voltage ±3°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
RS stock no. 811-5579
Mfr. Part No.LM34CZ/NOPB
R 61.52
Each
units
Temperature Voltage Analogue ±4°F Through Hole 3 -40 °C -40 → +110 °C +110 °C 5 V 30 V TO-92 5.2mm 5.2mm
RS stock no. 168-4955
Mfr. Part No.HDC1080DMBT
R 31.737
Each (On a Reel of 250)
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) °C, ±2 (Humidity) %RH Surface Mount 6 -20 °C -20 → +85 °C +85 °C 2.7 V 5.5 V WSON 3.1mm 0.75mm
RS stock no. 169-9938
Mfr. Part No.TSIC 306 TO92
R 104.313
Each (In a Bag of 50)
units
Temperature Digital - ±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. 893-7082
Mfr. Part No.HPP801A031
R 92.98
Each
units
Humidity Sensor Analogue Analogue ±2% Through Hole 2 -60 °C -60 → +140 °C +140 °C - 10 V ac - 10.2mm 6.2mm
RS stock no. 170-4357
Mfr. Part No.HPP801A031
R 59,137.78
Each (In a Box of 1200)
units
Humidity Sensor Analogue Analogue ±2% Through Hole 2 -60 °C -60 → +140 °C +140 °C - 10 V ac - 10.2mm 6.2mm
RS stock no. 133-0170
Mfr. Part No.HDC1080DMBT
R 48.86
Each (In a Pack of 2)
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) °C, ±2 (Humidity) %RH Surface Mount 6 -20 °C -20 → +85 °C +85 °C 2.7 V 5.5 V WSON 3.1mm 0.75mm
RS stock no. 121-8022
Mfr. Part No.Tsic 306 TO92
R 208.39
Each
units
Temperature Digital - ±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. 163-0735
Mfr. Part No.NCT75DMR2G
R 3.196
Each (On a Reel of 3000)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V - 3.1mm 0.95mm
RS stock no. 866-0247
Mfr. Part No.LM35DT/NOPB
R 27.551
Each (In a Tube of 45)
units
Temperature Voltage Analogue ±0.9°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-220 15.5mm 4.7mm
RS stock no. 535-9458
Mfr. Part No.LM35DT/NOPB
R 34.088
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±0.6°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-220 10.16mm 8.89mm
RS stock no. 806-4942
Mfr. Part No.NCT75DMR2G
R 7.461
Each (In a Pack of 25)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V - 3.1mm 0.95mm