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. 165-9068
Mfr. Part No.DS1620+
MYR38.136
Each (In a Tube of 50)
units
Temperature Switch Digital SPI ±2°C Through Hole 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V PDIP 9.91mm 4.45mm
RS Stock No. 146-2585
Mfr. Part No.SHT25
BrandSensirion
MYR35.796
Each (On a Reel of 400)
units
Temperature & Humidity Digital Serial-I2C ±1.8%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. 172-2356
Mfr. Part No.LINPICCOBASIC A420-G
MYR285.69
Each (In a Tray of 50)
units
- Analogue Analogue <±3 %, <±5% Surface Mount - -25 °C -25 to +85 °C +85 °C 8 V 10 V - 47mm 2.8mm
RS Stock No. 123-7352
Mfr. Part No.SHT35-DIS-B2.5kS
BrandSensirion
MYR34.50
Each
units
Temperature & Humidity Digital Serial-I2C ±0.2 °C, ±1.5%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. 169-9937
Mfr. Part No.TSIC 301 TO92
MYR27.878
Each (In a Bag of 50)
units
Temperature Analogue Analogue ±0.3°C Through Hole 3 -50 °C -50 to +150 °C +150 °C 3 V 5.5 V TO-92 4.77mm 4.01mm
RS Stock No. 681-0406
Mfr. Part No.STCN75DS2F
MYR3.702
Each (In a Pack of 5)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 874-4666
Mfr. Part No.HIH6131-021-001
BrandHoneywell
MYR59.38
Each
units
Temperature & Humidity Digital Serial-I2C ±4%RH Surface Mount 8 -25 °C -25 to +85 °C +85 °C 2.3 V 5.5 V SOIC 4.9mm 1.905mm
RS Stock No. 124-6463
Mfr. Part No.BD1020HFV-TR
BrandROHM
MYR2.184
Each (In a Pack of 15)
units
Temperature Voltage Analogue ±2.5°C Surface Mount 5 -30 °C -30 to +100 °C +100 °C 2.4 V 5.5 V HVSOP 1.6mm 0.58mm
RS Stock No. 111-2255
Mfr. Part No.AD7814ARTZ-500RL7
MYR8.263
Each (On a Reel of 500)
units
Temperature Digital SPI ±2°C Surface Mount 6 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V SOT-23 2.9mm 1.15mm
RS Stock No. 427-341
Mfr. Part No.AD590JF
MYR145.77
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. 169-8308
Mfr. Part No.DS75S+
MYR7.749
Each (In a Tube of 100)
units
Temperature Switch Open Drain Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 165-2246
Mfr. Part No.TC74A5-3.3VCTTR
BrandMicrochip
MYR3.111
Each (On a Reel of 3000)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 5 -40 °C -40 to +125 °C +125 °C 2.7 V 5.5 V SOT-23 3mm 1.3mm
RS Stock No. 504-5654
Mfr. Part No.LM75BIMM-3/NOPB
MYR9.986
Each (In a Pack of 5)
units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 5.5 V MSOP 3mm 0.86mm
RS Stock No. 169-9920
Mfr. Part No.HYT221
MYR139.22
Each (In a Tray of 50)
units
Temperature & Humidity Digital Serial-I2C ±0.2 K, ±1.8% Through Hole 4 -40 °C -40 to +125 °C +125 °C 2.7 V 5.5 V - 10.2mm 15.3mm
RS Stock No. 121-8021
Mfr. Part No.Tsic 301 TO92
MYR31.33
Each
units
Temperature Analogue Analogue ±0.3°C Through Hole 3 -50 °C -50 to +150 °C +150 °C 3 V 5.5 V TO-92 4.77mm 4.01mm
RS Stock No. 709-6014
Mfr. Part No.AD590LF
MYR539.78
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. 203-6941
Mfr. Part No.HIH8120-021-001
BrandHoneywell
MYR48.13
Each
units
Temperature & Humidity Digital Serial-I2C ±2% Through Hole 4 - -40 to 125 °C - - - SIP - -
RS Stock No. 540-2899
Mfr. Part No.DS75S+
MYR9.01
Each
units
Temperature Switch Open Drain Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 169-1841
Mfr. Part No.SHTW2
BrandSensirion
MYR4.929
Each (On a Reel of 1000)
units
Temperature & Humidity Digital Serial-I2C ±0.4 °C, ±3%RH Surface Mount 4 -40 °C -40 to +125 °C +125 °C 1.62 V 1.98 V Flip Chip 1.34mm 0.42mm
RS Stock No. 876-5064
Mfr. Part No.SHT21S
BrandSensirion
MYR29.90
Each
units
Temperature & Humidity Analogue SDM ±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