Temperature & Humidity Sensor ICs

Temperature sensor ICs are components that directly translate physical temperature into digital information. Likewise, humidity sensor ICs can measure atmospheric moisture levels and translate that into digital information. As such, temperature and humidity sensor ICs are essential for environmental monitoring in and around sensitive electronic equipment.

These capabilities make temperature and humidity sensor ICs suitable for several 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 offer a wide range of temperature sensor and humidity sensor devices 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 the 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. 170-4381
Mfr. Part No.HPP809A031
SGD96.117
Each (In a Box of 100)
units
Temperature & Humidity Voltage Analogue ±5%RH Through Hole - -40 °C -40 to +85 °C +85 °C 4.75 V 5.25 V - 11.6mm 76.3mm
RS Stock No. 893-7373
Mfr. Part No.HPP809A031
SGD130.19
Each
units
Temperature & Humidity Voltage Analogue ±5%RH Through Hole - -40 °C -40 to +85 °C +85 °C 4.75 V 5.25 V - 11.6mm 76.3mm
RS Stock No. 161-4580
Mfr. Part No.HPP805A031
SGD67.431
Each (In a Box of 150)
units
Humidity Sensor Voltage Analogue ±5%RH Through Hole 3 -40 °C -40 to +60 °C +60 °C 3 V 10 V - 11.4mm 59.5mm
RS Stock No. 893-7247
Mfr. Part No.HPP805A031
SGD90.18
Each
units
Humidity Sensor Voltage Analogue ±5%RH Through Hole 3 -40 °C -40 to +60 °C +60 °C 3 V 10 V - 11.4mm 59.5mm
RS Stock No. 169-1862
Mfr. Part No.SHT31-ARP-B
BrandSensirion
SGD3.245
Each (On a Reel of 2500)
units
Temperature & Humidity Voltage Analogue ±0.3 °C, ±2%RH Surface Mount 8 -40 °C -40 to +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 876-5067
Mfr. Part No.SHT31-ARP-B
BrandSensirion
SGD7.81
Each
units
Temperature & Humidity Voltage Analogue ±0.3 °C, ±2%RH Surface Mount 8 -40 °C -40 to +125 °C +125 °C 2.4 V 5.5 V DFN 2.6mm 1mm
RS Stock No. 781-1365
Mfr. Part No.HIH-6120-021-001
BrandHoneywell
SGD18.03
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. 786-5554
Mfr. Part No.SHT21
BrandSensirion
SGD12.66
Each
units
Temperature & Humidity Digital Serial-I2C ±0.3 °C, ±2%RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 169-1857
Mfr. Part No.SHT21
BrandSensirion
SGD6.143
Each (On a Reel of 400)
units
Temperature & Humidity Digital Serial-I2C ±0.3 °C, ±2%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 2.1 V 3.6 V DFN 3mm 1.1mm
RS Stock No. 412-882
Mfr. Part No.TMP01FSZ
SGD14.27
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. 540-2805
Mfr. Part No.DS18B20+
SGD7.04
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. 893-7082
Mfr. Part No.HPP801A031
SGD11.61
Each
units
Humidity Sensor Analogue Analogue ±2%RH Through Hole 2 -60 °C -60 to +140 °C +140 °C - 10 V ac - 10.2mm 6.2mm
RS Stock No. 170-4357
Mfr. Part No.HPP801A031
SGD4.862
Each (In a Box of 1200)
units
Humidity Sensor Analogue Analogue ±2%RH Through Hole 2 -60 °C -60 to +140 °C +140 °C - 10 V ac - 10.2mm 6.2mm
RS Stock No. 709-6014
Mfr. Part No.AD590LF
SGD114.79
Each
units
Temperature Current - ±1°C Through Hole 2 -55 °C -55 → +150 °C +150 °C 4 V 30 V FPAK 2.36mm 6.1mm
RS Stock No. 912-2847
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
SGD0.295
Each (In a Bag of 1000)
units
Temperature Voltage Analogue ±1°C Through Hole 3 -40 °C -40 to +125 °C +125 °C 2.3 V 5.5 V TO-92 4.71mm 4.62mm
RS Stock No. 403-620
Mfr. Part No.MCP9700-E/TO
BrandMicrochip
SGD0.389
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. 866-0247
Mfr. Part No.LM35DT/NOPB
SGD2.73
Each (In a Tube of 45)
units
Temperature Voltage Analogue ±0.9°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-220 15.5mm 4.7mm
RS Stock No. 535-9458
Mfr. Part No.LM35DT/NOPB
SGD5.022
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±0.6°C Through Hole 3 0 °C 0 → +100 °C +100 °C 4 V 30 V TO-220 10.16mm 8.89mm
RS Stock No. 893-7146
Mfr. Part No.HPP845E031R5
SGD7.07
Each
units
Temperature & Humidity Digital Serial-I2C ±2%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.5 V 3.6 V DFN 3mm 0.9mm
RS Stock No. 146-2372
Mfr. Part No.HPP845E031R5
SGD2.289
Each (On a Reel of 5000)
units
Temperature & Humidity Digital Serial-I2C ±2%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.5 V 3.6 V DFN 3mm 0.9mm