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. 811-5595
Mfr. Part No.LM35DZ/LFT1
MYR6.251
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C 0 → 100 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 121-9338
Mfr. Part No.LM35DZ/LFT1
MYR3.069
Each (On a Reel of 2000)
units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C -55 → +150 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 540-2805
Mfr. Part No.DS18B20+
MYR12.47
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. 412-882
Mfr. Part No.TMP01FSZ
MYR32.60
Each
units
Temperature CMOS, TTL Voltage ±1°C Surface Mount 8 -55 °C -55 → +150 °C +150 °C 4.5 V 13.2 V SOIC 5mm 1.5mm
RS Stock No. 912-7303
Mfr. Part No.TMP01FSZ
MYR28.22
Each (In a Tube of 98)
units
Temperature CMOS, TTL Voltage ±1°C Surface Mount 8 -55 °C -55 → +150 °C +150 °C 4.5 V 13.2 V SOIC 5mm 1.5mm
RS Stock No. 922-4836
Mfr. Part No.LM35DZ/NOPB
MYR5.548
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±0.9°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 145-1341
Mfr. Part No.LM35DZ/NOPB
MYR3.164
Each (In a Box of 1800)
units
Temperature Voltage Analogue ±0.9°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
MYR89.90
Each
units
Humidity Sensor Analogue Analogue ±3.5% Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V dc 5.8 V dc SIP 21.66mm 2.03mm
RS Stock No. 177-5953
Mfr. Part No.HIH-4000-001
BrandHoneywell
MYR64.46
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 165-3459
Mfr. Part No.TC74A5-5.0VAT
BrandMicrochip
MYR4.79
Each (In a Tube of 50)
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. 866-6087
Mfr. Part No.MAX31865ATP+
MYR14.97
Each
units
Temperature - SPI 0.05% Surface Mount 20 -40 °C -40 → +125 °C +125 °C 3 V 3.6 V TQFN 5.1mm 0.75mm
RS Stock No. 876-5061
Mfr. Part No.SHT31-DIS-B
BrandSensirion
MYR23.07
Each
units
Temperature & Humidity Digital Serial-I2C ±0.3 °C, ±2 %RH Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 738-6005
Mfr. Part No.TC74A5-5.0VAT
BrandMicrochip
MYR5.77
Each (In a Pack of 2)
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. 781-1365
Mfr. Part No.HIH-6120-021-001
BrandHoneywell
MYR52.86
Each
units
Temperature & Humidity Digital Serial-I2C ±4%RH Through Hole 4 -25 °C -25 → +85 °C +85 °C 2.3 V 5.5 V SIP 4.9mm 3.9mm
RS Stock No. 165-4584
Mfr. Part No.MAX31865ATP+
MYR25.116
Each (In a Tube of 490)
units
Temperature - SPI 0.05% Surface Mount 20 -40 °C -40 → +125 °C +125 °C 3 V 3.6 V TQFN 5.1mm 0.75mm
RS Stock No. 169-1860
Mfr. Part No.SHT31-DIS-B
BrandSensirion
MYR18.975
Each (On a Reel of 2500)
units
Temperature & Humidity Digital Serial-I2C ±0.3 °C, ±2 %RH Surface Mount 8 -40 °C -40 → +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 170-4381
Mfr. Part No.HPP809A031
MYR227.789
Each (In a Box of 100)
units
Temperature & Humidity Voltage Analogue ±5%RH Through Hole - -40 °C -40 → +85 °C +85 °C 4.75 V dc 5.25 V dc - 11.6mm 76.3mm
RS Stock No. 893-7373
Mfr. Part No.HPP809A031
MYR314.19
Each
units
Temperature & Humidity Voltage Analogue ±5%RH Through Hole - -40 °C -40 → +85 °C +85 °C 4.75 V dc 5.25 V dc - 11.6mm 76.3mm
RS Stock No. 548-4295
Mfr. Part No.HIH-4000-003
BrandHoneywell
MYR102.82
Each
units
Humidity Sensor Analogue Analogue ±3.5% Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V dc 5.8 V dc SIP 21.66mm 2.03mm
RS Stock No. 169-7678
Mfr. Part No.HIH-4000-003
BrandHoneywell
MYR104.828
Each (In a Tube of 25)
units
Humidity Sensor Analogue Analogue ±3.5% Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V dc 5.8 V dc SIP 21.66mm 2.03mm
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