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. 173-2745
Mfr. Part No.SI7020-A20-GM1
kr 23,645
Each (On a Tape of 100)
Units
Temperature & Humidity Digital Serial-I2C ±0.4 °C, ±4 %RH Surface Mount 6 -40 °C -40 → +85 °C +85 °C 1.9 V 3.6 V DFN 3mm 0.75mm
RS Stock No. 170-4328
Mfr. Part No.MCP9701T-E/TT
BrandMicrochip
kr 1,70
Each (On a Reel of 3000)
Units
- - - - - - - - - - - - - -
RS Stock No. 874-4562
Mfr. Part No.HIH-4000-004
BrandHoneywell
kr 215,75
Each
Units
Humidity Sensor Analogue Analogue ±3.5%RH Through Hole 3 -40 °C -40 → +85 °C +85 °C 4 V dc 5.8 V dc SIP 4.17mm 8.59mm
RS Stock No. 912-7066
Mfr. Part No.AD592CNZ
kr 177,004
Each (In a Bag of 100)
Units
Temperature Current - ±0.3°C Through Hole 3 -25 °C -25 → +105 °C +105 °C 4 V 30 V TO-92 5.21mm 5.33mm
RS Stock No. 786-5554
Mfr. Part No.SHT21
BrandSensirion
kr 68,79
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. 548-4295
Mfr. Part No.HIH-4000-003
BrandHoneywell
kr 189,13
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. 110-6598
Mfr. Part No.HTS221TR
kr 28,365
Each (In a Pack of 2)
Units
Temperature & Humidity Digital Analogue ± 0.5 (Temperature) °C, ± 3.5 (Humidity) % Surface Mount 6 -40 °C -40 → +120 °C +120 °C 1.7 V 3.6 V HLGA 2mm 0.9mm
RS Stock No. 786-3378
Mfr. Part No.ADT7420UCPZ-R2
kr 74,97
Each
Units
Temperature Open Drain Serial-I2C ±0.25°C Surface Mount 16 -40 °C -40 → +150 °C +150 °C 2.7 V 5.5 V LFCSP 4.1mm 0.75mm
RS Stock No. 159-4685
Mfr. Part No.LM335Z
kr 4,29
Each
Units
Temperature Voltage Analogue ±5°C Through Hole 3 -40 °C -40 → +100 °C +100 °C 2.92 V 3.04 V TO-92 5mm 5.03mm
RS Stock No. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
kr 162,21
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. 169-1858
Mfr. Part No.SHT21P
BrandSensirion
kr 35,682
Each (On a Reel of 400)
Units
Temperature & Humidity PWM Digital PWM ±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. 168-6042
Mfr. Part No.LM335Z
kr 1,434
Each (In a Bag of 2500)
Units
Temperature Voltage Analogue ±5°C Through Hole 3 -40 °C -40 → +100 °C +100 °C 2.92 V 3.04 V TO-92 5mm 5.03mm
RS Stock No. 146-0127
Mfr. Part No.TC74A0-5.0VAT
BrandMicrochip
kr 10,375
Each (In a Tube of 50)
Units
Temperature Digital Serial-I2C, SMBus ±2°C Through Hole 5 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-220 10.67mm 9.02mm
RS Stock No. 668-7313
Mfr. Part No.TC74A0-5.0VAT
BrandMicrochip
kr 12,382
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±2°C Through Hole 5 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-220 10.67mm 9.02mm
RS Stock No. 166-0935
Mfr. Part No.HTS221TR
kr 15,319
Each (On a Reel of 8000)
Units
Temperature & Humidity Digital Analogue ± 0.5 (Temperature) °C, ± 3.5 (Humidity) % Surface Mount 6 -40 °C -40 → +120 °C +120 °C 1.7 V 3.6 V HLGA 2mm 0.9mm
RS Stock No. 169-9923
Mfr. Part No.MK33-W
kr 293,948
Each (In a Tray of 50)
Units
- - - - Through Hole 2 +40 °C 40 → +190 °C +190 °C - 12 V - 10.8mm 0.8mm
RS Stock No. 668-7329
Mfr. Part No.TCN75AVUA
BrandMicrochip
kr 6,34
Each (In a Pack of 5)
Units
Temperature Digital Serial-I2C, SMBus ±1°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V MSOP 3mm 0.85mm
RS Stock No. 912-2856
Mfr. Part No.MCP9701A-E/TO
BrandMicrochip
kr 2,175
Each (In a Bag of 1000)
Units
Temperature Voltage Analogue ±1°C Through Hole 3 -10 °C -40 → +125 °C +125 °C 3.1 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 824-6967
Mfr. Part No.LM75BIMX-3/NOPB
kr 19,94
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 SOIC 5mm 1.5mm
RS Stock No. 427-341
Mfr. Part No.AD590JF
kr 303,59
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
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