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. 912-7303
Mfr. Part No.TMP01FSZ
$10.55
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. 412-882
Mfr. Part No.TMP01FSZ
$13.27
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. 133-0679
Mfr. Part No.LMT01LPG
$3.93
Each (In a Pack of 5)
units
Temperature Digital 1-Wire ±0.7°C Surface Mount 2 -50 °C -50 → +150 °C +150 °C 2 V 5.5 V TO-92 4.1mm 3.25mm
RS Stock No. 427-341
Mfr. Part No.AD590JF
$64.65
Each
units
Temperature Current - ±5°C Surface Mount 2 -55 °C -55 → +150 °C +150 °C 4 V 30 V FPAK 2.36mm 1.27mm
RS Stock No. 912-8797
Mfr. Part No.AD590JF
$77.05
Each (In a Box of 40)
units
Temperature CMOS Current ±5°C Surface Mount 2 -55 °C -55 → +150 °C +150 °C 4 V 30 V FPAK 2.36mm 1.27mm
RS Stock No. 161-0157
Mfr. Part No.TMP36FSZ
$2.52
Each (In a Tube of 98)
units
Temperature Emitter Follower Voltage ±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. 540-2849
Mfr. Part No.DS18S20+
$7.62
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. 412-973
Mfr. Part No.TMP36FSZ
$3.12
Each (In a Pack of 5)
units
Temperature Emitter Follower Voltage ±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. 162-4717
Mfr. Part No.LM35CZ/NOPB
$4.14
Each (In a Bag of 1800)
units
Temperature Voltage Analogue ±0.4°C Through Hole 3 -40 °C -40 → +110 °C +110 °C 4 V 20 V TO-92 5.2mm 5.2mm
RS Stock No. 533-5890
Mfr. Part No.LM35CZ/NOPB
$10.64
Each
units
Temperature Voltage Analogue ±0.4°C Through Hole 3 -40 °C -40 → +110 °C +110 °C 4 V 20 V TO-92 5.2mm 5.2mm
RS Stock No. 121-8696
Mfr. Part No.LM35CAZ/NOPB
$8.931
Each (In a Box of 1800)
units
Temperature Voltage Analogue ±0.2°C Through Hole 3 -40 °C -40 → +110 °C +110 °C 4 V 30 V TO-92 5.2mm 5.2mm
RS Stock No. 533-5878
Mfr. Part No.LM35CAZ/NOPB
$11.40
Each
units
Temperature Voltage Analogue ±0.2°C Through Hole 3 -40 °C -40 → +110 °C +110 °C 4 V 30 V TO-92 5.2mm 5.2mm
RS Stock No. 121-7998
Mfr. Part No.HYT271
$58.63
Each
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 - 5.1mm 10.2mm
RS Stock No. 146-2585
Mfr. Part No.SHT25
BrandSensirion
$10.53
Each (On a Reel of 400)
units
Temperature & Humidity Digital Serial-I2C ±1.8%RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 403-620
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
$0.382
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. 912-2847
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
$0.29
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. 162-7131
Mfr. Part No.TMP275AID
$3.20
Each (In a Tube of 75)
units
Temperature Digital Serial-I2C, SMBus ±0.2°C Surface Mount 8 -55 °C -55 → +127 °C +127 °C 2.7 V 5.5 V SOIC 4.9mm 1.58mm
RS Stock No. 727-6226
Mfr. Part No.SHT25
BrandSensirion
$18.84
Each
units
Temperature & Humidity Digital Serial-I2C ±1.8%RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 874-4641
Mfr. Part No.HIH6121-021-001
BrandHoneywell
$21.38
Each
units
Temperature & Humidity Digital Serial-I2C ±4%RH Through Hole 4 -25 °C -25 → +85 °C +85 °C 2.3 V dc 5.5 V dc SIP 4.9mm 3.9mm
RS Stock No. 169-9921
Mfr. Part No.HYT271
$35.46
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 - 5.1mm 10.2mm
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