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. 709-2898
Mfr. Part No.AD590MH
$219.00
Each
units
Temperature Current - ±0.5°C Through Hole 3 -55 °C -55 → +150 °C +150 °C 4 V 30 V TO-52 5.84mm 3.81mm
RS Stock No. 738-7058
Mfr. Part No.MCP9701AT-E/TT
BrandMicrochip
$0.474
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±2°C Surface Mount 3 -40 °C -40 → +125 °C +125 °C 5.5 V 3.1 V SOT-23 3.05mm 1.02mm
RS Stock No. 169-1841
Mfr. Part No.SHTW2
BrandSensirion
$1.74
Each (On a Reel of 1000)
units
Temperature & Humidity Digital Serial-I2C ±0.4 (Temperature) °C, ±3 (Humidity) %RH Surface Mount 4 -40 °C -40 → +125 °C +125 °C 1.62 V 1.98 V Flip Chip 1.34mm 0.42mm
RS Stock No. 667-5275
Mfr. Part No.SF1
BrandSensirion
$3.33
Each
units
Temperature & Humidity - - - Surface Mount 2 -40 °C -40 → +100 °C +100 °C - - - 10.1mm 8.2mm
RS Stock No. 157-8569
Mfr. Part No.AD7416ARZ
$3.26
Each (In a Tube of 98)
units
Temperature Open Drain Serial-I2C ±2°C Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 504-5648
Mfr. Part No.LM75BIM-5/NOPB
$4.17
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 4.9mm 1.45mm
RS Stock No. 264-147
Mfr. Part No.LM135H
$29.20
Each
units
Temperature Voltage Analogue ±1°C Through Hole 3 -55 °C -55 → +150 °C +150 °C 2.95 V 2.99 V TO-46 5.44mm 2.67mm
RS Stock No. 169-1854
Mfr. Part No.SF1
BrandSensirion
$1.927
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. 121-8648
Mfr. Part No.LM75BIM-5/NOPB
$2.71
Each (In a Tube of 95)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V SOIC 4.9mm 1.45mm
RS Stock No. 169-9920
Mfr. Part No.HYT221
$44.21
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 - 10.2mm 15.3mm
RS Stock No. 159-7996
Mfr. Part No.ADT75ARZ
$2.42
Each (In a Tube of 98)
units
Temperature Open Drain Serial-I2C ±2°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 121-8265
Mfr. Part No.LM135H
$14.51
Each (In a Box of 500)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -55 °C -55 → +150 °C +150 °C 2.95 V 2.99 V TO-46 5.44mm 2.67mm
RS Stock No. 538-4066
Mfr. Part No.AD22103KTZ
$6.59
Each
units
Temperature Analogue Analogue ±0.75°C Through Hole 3 0 °C 0 → +100 °C +100 °C 2.7 V 3.6 V TO-92 5.21mm 5.33mm
RS Stock No. 158-0129
Mfr. Part No.AD22103KTZ
$4.83
Each (In a Bag of 100)
units
Temperature Analogue Analogue ±0.75°C Through Hole 3 0 °C 0 → +100 °C +100 °C 2.7 V 3.6 V TO-92 5.21mm 5.33mm
RS Stock No. 709-8221
Mfr. Part No.ADT75ARZ
$2.98
Each
units
Temperature Open Drain Serial-I2C ±2°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 111-1115
Mfr. Part No.AD592ANZ
$8.22
Each (In a Tray of 100)
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. 817-6666
Mfr. Part No.TMP302DDRLT
$1.14
Each (In a Pack of 10)
units
Temperature Switch Open Drain - ±2°C Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.4 V 3.6 V SOT-553 1.7mm 0.55mm
RS Stock No. 535-9105
Mfr. Part No.LM335AM/NOPB
$2.08
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±1°C Surface Mount 8 -40 °C -40 → +100 °C +100 °C 2.95 V 3 V SOIC 4.9mm 1.45mm
RS Stock No. 162-4749
Mfr. Part No.LM60BIZ/NOPB
$0.865
Each (In a Box of 1800)
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. 170-4356
Mfr. Part No.G-NICO-001
$1.514
Each (On a Reel of 10000)
units
Temperature Analogue - ±0.4°C Surface Mount 3 -55 °C -55 → +160 °C +160 °C - - SOT-23 3.05mm 1.12mm
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