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. 781-1355
Mfr. Part No.HIH-5030-001
BrandHoneywell
R 148.50
Each
units
Humidity Sensor Analogue Analogue ±3%RH Surface Mount 3 -40 °C -40 → +85 °C +85 °C 2.7 V 5.5 V SMD 8.59mm 2.67mm
RS stock no. 121-9297
Mfr. Part No.LM61CIZ/NOPB
R 5.533
Each (In a Box of 1800)
units
Temperature Voltage Analogue ±4°C Through Hole 3 -30 °C -30 → +100 °C +100 °C 2.7 V 10 V TO-92 5.2mm 5.2mm
RS stock no. 230-747
Mfr. Part No.AD592CNZ
R 359.61
Each
units
Temperature Current - ±0.3°C Through Hole 3 -25 °C -25 → +105 °C +105 °C 4 V 30 V TO-92 5.21mm 5.33mm
RS stock no. 923-7630
Mfr. Part No.DS18B20+PAR
R 45.691
Each (In a Tube of 500)
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
RS stock no. 535-9896
Mfr. Part No.LM60BIZ/NOPB
R 20.302
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±3°C Through Hole 3 -25 °C -25 → +125 °C +125 °C 2.7 V 10 V TO-92 5.2mm 5.2mm
RS stock no. 510-251
Mfr. Part No.LM75AD,112
BrandNXP
R 5.398
Each (In a Pack of 10)
units
Temperature Digital Serial-I2C ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.8 V 5.5 V SOIC 5mm 1.45mm
RS stock no. 786-0809
Mfr. Part No.DS18B20+PAR
R 82.535
Each (In a Pack of 2)
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. 912-7066
Mfr. Part No.AD592CNZ
R 290.831
Each (In a Bag of 100)
units
Temperature Current - ±0.3°C Through Hole 3 -25 °C -25 → +105 °C +105 °C 4 V 30 V TO-92 5.21mm 5.33mm
RS stock no. 761-6034
Mfr. Part No.LM61CIZ/NOPB
R 9.30
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±4°C Through Hole 3 -30 °C -30 → +100 °C +100 °C 2.7 V 10 V TO-92 5.2mm 5.2mm
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. 165-9224
Mfr. Part No.DS1621S+
R 45.317
Each (In a Tube of 100)
units
Temperature Switch Digital Serial-2 Wire ±2°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOIC 5mm 1.5mm
RS stock no. 667-5275
Mfr. Part No.SF1
BrandSensirion
R 22.56
Each
units
Temperature & Humidity - - - Surface Mount 2 -40 °C -40 → +100 °C +100 °C - - - 10.1mm 8.2mm
RS stock no. 889-5165
Mfr. Part No.TC1047AVNBTR
BrandMicrochip
R 7.339
Each (On a Reel of 3000)
units
Temperature Voltage Analogue ±2°C Surface Mount 3 -40 °C -40 → +125 °C +125 °C 2.5 V 5.5 V SOT-23B 3.05mm 1.02mm
RS stock no. 540-2748
Mfr. Part No.DS1621S+
R 49.84
Each
units
Temperature Switch Digital Serial-2 Wire ±2°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOIC 5mm 1.5mm
RS stock no. 169-1854
Mfr. Part No.SF1
BrandSensirion
R 21.323
Each (In a Tray of 100)
units
Temperature & Humidity - - - Surface Mount 2 -40 °C -40 → +100 °C +100 °C - - - 10.1mm 8.2mm
RS stock no. 738-6001
Mfr. Part No.TC1047AVNBTR
BrandMicrochip
R 12.092
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±2°C Surface Mount 3 -40 °C -40 → +125 °C +125 °C 2.5 V 5.5 V SOT-23B 3.05mm 1.02mm
RS stock no. 146-1070
Mfr. Part No.DS1631+
R 53.95
Each (In a Tube of 50)
units
Temperature Push-Pull Output Serial-I2C, SMBus ±0.5°C Through Hole 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V PDIP 9.91mm 4.45mm
RS stock no. 121-7998
Mfr. Part No.HYT271
R 519.17
Each
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) K, ±1.8 (Humidity) % Through Hole 4 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V - 5.1mm 10.2mm
RS stock no. 169-9921
Mfr. Part No.HYT271
R 357.208
Each (In a Tray of 50)
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) K, ±1.8 (Humidity) % Through Hole 4 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V - 5.1mm 10.2mm