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. 133-0170
Mfr. Part No.HDC1080DMBT
$6.265
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. 403-838
Mfr. Part No.MCP9700A-E/TO
BrandMicrochip
$0.498
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. 668-7202
Mfr. Part No.MCP9701-E/TO
BrandMicrochip
$0.43
Each (In a Pack of 20)
units
Temperature Voltage Analogue ±2°C Through Hole 3 -10 °C -10 → +125 °C +125 °C 3.1 V 5.5 V TO-92 4.71mm 4.62mm
RS Stock No. 162-6277
Mfr. Part No.LM60CIZ/NOPB
$0.613
Each (In a Box of 1800)
units
Temperature Voltage Analogue ±4°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.7 V 10 V TO-92 5.2mm 5.2mm
RS Stock No. 121-8648
Mfr. Part No.LM75BIM-5/NOPB
$2.77
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. 523-8430
Mfr. Part No.AD7416ARZ
$4.07
Each
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. 264-147
Mfr. Part No.LM135H
$26.95
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. 144-5786
Mfr. Part No.MCP9701-E/TO
BrandMicrochip
$0.266
Each (In a Bag of 1000)
units
Temperature Voltage Analogue ±2°C Through Hole 3 -10 °C -10 → +125 °C +125 °C 3.1 V 5.5 V TO-92 4.71mm 4.62mm
RS Stock No. 123-7351
Mfr. Part No.SHT20
BrandSensirion
$8.54
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. 145-6235
Mfr. Part No.AMC6821SDBQ
$3.78
Each (In a Tube of 75)
units
Temperature - SMBus ±2°C Surface Mount 16 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V SSOP 5mm 1.5mm
RS Stock No. 523-7443
Mfr. Part No.AD22105ARZ
$6.06
Each
units
Temperature Switch Open Collector - ±0.5°C Surface Mount 8 -50 °C -50 → +150 °C +150 °C 2.7 V 7 V SOIC 5mm 1.5mm
RS Stock No. 403-834
Mfr. Part No.MCP9801-M/SN
BrandMicrochip
$1.57
Each (In a Pack of 5)
units
Temperature Digital Serial-I2C, SMBus ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOIC 4.9mm 1.25mm
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. 158-1946
Mfr. Part No.TMP37FT9Z
$1.48
Each (In a Bag of 100)
units
Temperature Emitter Follower Voltage ±1°C Through Hole 3 +5 °C +5 → +100 °C +100 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 922-4763
Mfr. Part No.TMP102AIDRLT
$1.31
Each (On a Reel of 250)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.4 V 3.6 V SOT-553 1.6mm 0.55mm
RS Stock No. 169-0093
Mfr. Part No.SI7053-A20-IM
$2.31
Each (In a Tube of 100)
units
Temperature Digital Serial-I2C ±0.3°C Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.8mm
RS Stock No. 774-7863
Mfr. Part No.TC74A0-3.3VAT
BrandMicrochip
$1.92
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. 817-6666
Mfr. Part No.TMP302DDRLT
$0.923
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. 162-8376
Mfr. Part No.TMP302DDRLT
$0.65
Each (On a Reel of 250)
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. 168-5147
Mfr. Part No.AD22105ARZ
$5.139
Each (In a Tube of 98)
units
Temperature Switch Open Collector - ±0.5°C Surface Mount 8 -50 °C -50 → +150 °C +150 °C 2.7 V 7 V SOIC 5mm 1.5mm
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