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. 540-2849
Mfr. Part No.DS18S20+
€3.17
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. 540-5258
Mfr. Part No.DS1620+
€7.19
Each
units
Temperature Switch Digital SPI ±2°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. 165-9068
Mfr. Part No.DS1620+
€6.247
Each (In a Tube of 50)
units
Temperature Switch Digital SPI ±2°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. 190-4566
Mfr. Part No.DS1624S+T&R
€4.056
Each (On a Reel of 2000)
units
Temperature Digital Serial-2 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SO 5.46mm 2.03mm
RS Stock No. 190-6093
Mfr. Part No.DS1925L-F5#
€55.123
Each (In a Bag of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 165-9103
Mfr. Part No.DS1629S+
€4.965
Each (In a Tube of 100)
units
Temperature Digital Serial-2 Wire ±2°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.2 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 190-4567
Mfr. Part No.DS1626U+
€3.238
Each (In a Tube of 50)
units
Temperature Digital Serial-3 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V μSOP 3.1mm 0.95mm
RS Stock No. 190-1453
Mfr. Part No.MAX6656MEE+
€4.055
Each (In a Pack of 2)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 16 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V QSOP 4.98mm 1.65mm
RS Stock No. 190-4568
Mfr. Part No.DS1631Z+
€2.653
Each (In a Tube of 100)
units
Temperature Digital Serial-2 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SO 5mm 1.5mm
RS Stock No. 190-4794
Mfr. Part No.MAX31723MUA+
€3.043
Each (In a Tube of 50)
units
Temperature Open Drain Serial-3 Wire, SPI ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 1.7 V 3.7 V μMax 3.1mm 0.95mm
RS Stock No. 190-4573
Mfr. Part No.DS1726U+
€2.469
Each (In a Tube of 50)
units
Temperature Digital Serial-3 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V μSOP 3.1mm 0.95mm
RS Stock No. 190-1372
Mfr. Part No.MAX30205MTA+
€2.07
Each (In a Pack of 5)
units
Temperature Digital I2C, Serial-2 Wire, SMBus 0.1°C Surface Mount 8 0 °C 0 → +50 °C +50 °C 2.7 V 3.3 V TDFN 3.1mm 0.75mm
RS Stock No. 799-8143
Mfr. Part No.MAX7500MSA+
€1.496
Each (In a Pack of 5)
units
Temperature Open Drain Serial-I2C ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 190-1348
Mfr. Part No.MAX1978ETM+
€20.91
Each
units
Temperature Current Analogue ±10% Surface Mount 48 -40 °C -40 → +85 °C +85 °C 3 V 5.5 V TQFN 7.1mm 0.75mm
RS Stock No. 190-4795
Mfr. Part No.MAX31723MUA+T
€1.851
Each (On a Reel of 2500)
units
Temperature Open Drain Serial-3 Wire, SPI ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 1.7 V 3.7 V μMax 3.1mm 0.95mm
RS Stock No. 540-2748
Mfr. Part No.DS1621S+
€2.93
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. 169-8399
Mfr. Part No.MAX6639AEE+
€2.584
Each (In a Tube of 100)
units
Temperature PWM SMBus ±1°C Surface Mount 16 -40 °C -40 → +125 °C +125 °C 3 V 5.5 V QSOP 4.98mm 1.65mm
RS Stock No. 190-4782
Mfr. Part No.DS600U+T&R
€2.273
Each (On a Reel of 3000)
units
Temperature Analogue - ±0.75°C Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V μSOP 3.1mm 0.95mm
RS Stock No. 190-8047
Mfr. Part No.DS1631Z+T&R
€3.31
Each
units
Temperature Digital Serial-2 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SO 5mm 1.5mm
RS Stock No. 190-5231
Mfr. Part No.MAX6510CAUT+T
€1.46
Each (In a Pack of 5)
units
Temperature Open Drain - ±4.7°C Surface Mount 5 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V SOT-23 3mm 1.3mm