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. 159-4685
Mfr. Part No.LM335Z
kr 4,37
Each
Units
Temperature Voltage Analogue ±5°C Through Hole 3 -40 °C -40 to +100 °C +100 °C 2.92 V 3.04 V TO-92 5mm 5.03mm
RS Stock No. 865-2283
Mfr. Part No.Si7006-A20-IM1
kr 19,407
Each (In a Pack of 3)
Units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±5%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS Stock No. 639-4020
Mfr. Part No.LM73CIMK-0/NOPB
kr 24,852
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±2.5°C Surface Mount 6 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V TSOT 2.97mm 0.87mm
RS Stock No. 912-9961
Mfr. Part No.ADT7420UCPZ-R2
kr 43,844
Each (On a Reel of 250)
Units
Temperature Open Drain Serial-I2C ±0.25°C Surface Mount 16 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V LFCSP 4.1mm 0.75mm
RS Stock No. 668-7329
Mfr. Part No.TCN75AVUA
BrandMicrochip
kr 6,436
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
kr 170,76
Each
Units
Humidity Sensor Analogue Analogue ±3.5%RH Through Hole 3 -40 °C -40 to +85 °C +85 °C 4 V 5.8 V SIP 21.66mm 2.03mm
RS Stock No. 876-5055
Mfr. Part No.SHT21P
BrandSensirion
kr 62,84
Each
Units
Temperature & Humidity PWM Digital PWM ±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. 427-341
Mfr. Part No.AD590JF
kr 306,88
Each
Units
Temperature Current - ±5°C Surface Mount 2 -55 °C -55 to +150 °C +150 °C 4 V 30 V FPAK 2.36mm 1.27mm
RS Stock No. 162-8605
Mfr. Part No.LM75BIMX-3/NOPB
kr 7,886
Each (On a Reel of 2500)
Units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 3 V 5.5 V SOIC 5mm 1.5mm
RS Stock No. 145-8952
Mfr. Part No.TCN75AVUA
BrandMicrochip
kr 4,875
Each (In a Tube of 100)
Units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 786-3378
Mfr. Part No.ADT7420UCPZ-R2
kr 75,58
Each
Units
Temperature Open Drain Serial-I2C ±0.25°C Surface Mount 16 -40 °C -40 to +150 °C +150 °C 2.7 V 5.5 V LFCSP 4.1mm 0.75mm
RS Stock No. 169-0083
Mfr. Part No.SI7006-A20-IM1
kr 16,029
Each (On a Tape of 100)
Units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±5%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS Stock No. 121-8585
Mfr. Part No.LM75BIM-3/NOPB
kr 16,679
Each (In a Tube of 95)
Units
- - - - - - - - - - - - - -
RS Stock No. 795-1526
Mfr. Part No.Si7005-B-GM
kr 60,34
Each
Units
Temperature & Humidity Digital Serial-I2C ±1 °C, ±4.5%RH Surface Mount 24 -40 °C -40 to +85 °C +85 °C 2.1 V 3.6 V QFN 4mm 0.95mm
RS Stock No. 686-4986
Mfr. Part No.STLM75DS2F
kr 7,806
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±3°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 668-7186
Mfr. Part No.MCP9509HT-E/OT
BrandMicrochip
kr 7,828
Each (In a Pack of 5)
Units
Temperature Switch Open Drain - ±0.5°C Surface Mount 5 -40 °C -40 to +125 °C +125 °C 2.7 V 5.5 V SOT-23 3.1mm 1.3mm
RS Stock No. 403-834
Mfr. Part No.MCP9801-M/SN
BrandMicrochip
kr 10,306
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±0.5°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 2.7 V 5.5 V SOIC 4.9mm 1.25mm
RS Stock No. 169-0090
Mfr. Part No.SI7022-A20-IM
kr 22,083
Each (On a Tape of 100)
Units
Temperature & Humidity PWM Digital PWM ±0.4 °C, ±4%RH Surface Mount 6 -40 °C -40 to +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
New
RS Stock No. 216-7803
Mfr. Part No.MAX31889ALT+T
kr 18,662
Each (On a Reel of 2500)
Units
Temperature Digital I2C 0.25% Surface Mount 6 - -40 → +125 °C, -20 → +105 °C - - - ?DFN - -
RS Stock No. 190-5310
Mfr. Part No.DS75LVU+
kr 17,025
Each (In a Pack of 10)
Units
Temperature Open Drain Serial-2 Wire ±2°C Surface Mount 8 -55 °C -55 to +125 °C +125 °C 1.7 V 3.7 V μSOP 3.1mm 0.95mm