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. 403-620
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
HK$2.204
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. 668-7265
Mfr. Part No.TC6501P095VCTTR
BrandMicrochip
HK$6.39
Each (In a Pack of 5)
units
Temperature Switch Open Drain - ±0.5°C Surface Mount 5 -55 °C -55 → +135 °C +135 °C 2.7 V 5.5 V SOT-23 2.95mm 1.1mm
RS Stock No. 144-5787
Mfr. Part No.TC6501P095VCTTR
BrandMicrochip
HK$4.744
Each (On a Reel of 3000)
units
Temperature Switch Open Drain - ±0.5°C Surface Mount 5 -55 °C -55 → +135 °C +135 °C 2.7 V 5.5 V SOT-23 2.95mm 1.1mm
RS Stock No. 912-2847
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
HK$1.668
Each (In a Bag of 1000)
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. 738-6001
Mfr. Part No.TC1047AVNBTR
BrandMicrochip
HK$5.39
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. 738-7048
Mfr. Part No.MCP9700AT-E/TT
BrandMicrochip
HK$2.64
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±2°C Surface Mount 3 -40 °C -40 → +125 °C +125 °C 2.3 V 5.5 V SOT-23 3.05mm 1.02mm
RS Stock No. 738-7051
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
HK$2.65
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 → +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 889-5459
Mfr. Part No.MCP9700AT-E/TT
BrandMicrochip
HK$2.197
Each (On a Reel of 3000)
units
Temperature Voltage Analogue ±2°C Surface Mount 3 -40 °C -40 → +125 °C +125 °C 2.3 V 5.5 V SOT-23 3.05mm 1.02mm
RS Stock No. 170-4320
Mfr. Part No.MCP9700T-E/LT
BrandMicrochip
HK$1.668
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 738-7042
Mfr. Part No.MCP9700T-E/LT
BrandMicrochip
HK$2.22
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±4°C Surface Mount 5 -40 °C -40 → +125 °C +125 °C 2.3 V 5.5 V SC-70 2.2mm 1mm
RS Stock No. 889-5165
Mfr. Part No.TC1047AVNBTR
BrandMicrochip
HK$4.02
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. 912-2856
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
HK$2.05
Each (In a Bag of 1000)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 → +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 165-3404
Mfr. Part No.TC77-5.0MCTTR
BrandMicrochip
HK$7.084
Each (On a Reel of 3000)
units
Temperature Digital Serial-Microwire, Serial-SPI ±3°C Surface Mount 5 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOT-23 3.1mm 1.3mm
RS Stock No. 911-5524
Mfr. Part No.MCP9700A-E/TO
BrandMicrochip
HK$2.05
Each (In a Bag of 1000)
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. 768-1549
Mfr. Part No.TC77-5.0MCTTR
BrandMicrochip
HK$8.47
Each (In a Pack of 5)
units
Temperature Digital Serial-Microwire, Serial-SPI ±3°C Surface Mount 5 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOT-23 3.1mm 1.3mm
RS Stock No. 403-838
Mfr. Part No.MCP9700A-E/TO
BrandMicrochip
HK$2.65
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. 774-7863
Mfr. Part No.TC74A0-3.3VAT
BrandMicrochip
HK$11.72
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. 889-5932
Mfr. Part No.MCP9808-E/MS
BrandMicrochip
HK$7.27
Each (In a Tube of 100)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.95mm
RS Stock No. 770-9892
Mfr. Part No.MCP9808-E/MS
BrandMicrochip
HK$9.67
Each (In a Pack of 4)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.95mm
RS Stock No. 738-6014
Mfr. Part No.TCN75AVOA
BrandMicrochip
HK$6.064
Each (In a Pack of 5)
units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOIC 4.9mm 1.42mm