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. 540-2805
Mfr. Part No.DS18B20+
PHP160.13
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. 533-5878
Mfr. Part No.LM35CAZ/NOPB
PHP326.95
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. 121-8696
Mfr. Part No.LM35CAZ/NOPB
PHP167.487
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. 786-5554
Mfr. Part No.SHT21
BrandSensirion
PHP338.34
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. 412-882
Mfr. Part No.TMP01FSZ
PHP436.98
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. 169-1857
Mfr. Part No.SHT21
BrandSensirion
PHP189.677
Each (On a Reel of 400)
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. 912-7303
Mfr. Part No.TMP01FSZ
PHP376.269
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. 103-8134
Mfr. Part No.KTY81/121,112
BrandNXP
PHP48.165
Each (In a Bag of 500)
units
Temperature - - - - - -55 °C - +150 °C - - - 5.2mm 4.8mm
RS Stock No. 803-0719
Mfr. Part No.KTY81/121,112
BrandNXP
PHP84.868
Each (In a Pack of 10)
units
Temperature - - - - - -55 °C - +150 °C - - - 5.2mm 4.8mm
RS Stock No. 811-5595
Mfr. Part No.LM35DZ/LFT1
PHP53.998
Each (In a Pack of 10)
units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C 0 → 100 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 121-9338
Mfr. Part No.LM35DZ/LFT1
PHP35.54
Each (On a Reel of 2000)
units
Temperature Voltage Analogue ±2°C Through Hole 3 0 °C -55 → +150 °C +100 °C 4 V 30 V TO-92 5.21mm 5.34mm
RS Stock No. 177-5953
Mfr. Part No.HIH-4000-001
BrandHoneywell
PHP661.976
Each (In a Tube of 50)
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. 528-3171
Mfr. Part No.HIH-4000-001
BrandHoneywell
PHP816.43
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. 102-5687
Mfr. Part No.LM19CIZ/NOPB
PHP19.305
Each (On a Reel of 1800)
units
Temperature Voltage Analogue ±3.8°C Through Hole 3 -55 °C -55 → +130 °C +130 °C 2.4 V 5.5 V TO-92 5.2mm 5.2mm
RS Stock No. 121-7999
Mfr. Part No.HYT939
PHP3,153.44
Each
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) K, ±1.8 (Humidity) % Through Hole 2 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V - 9.8mm 5.2mm
RS Stock No. 535-8758
Mfr. Part No.LM19CIZ/NOPB
PHP46.884
Each (In a Pack of 5)
units
Temperature Voltage Analogue ±3.8°C Through Hole 3 -55 °C -55 → +130 °C +130 °C 2.4 V 5.5 V TO-92 5.2mm 5.2mm
RS Stock No. 169-9922
Mfr. Part No.HYT939
PHP2,773.498
Each (In a Tray of 50)
units
Temperature & Humidity Digital Serial-I2C ±0.2 (Temperature) K, ±1.8 (Humidity) % Through Hole 2 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V - 9.8mm 5.2mm
RS Stock No. 427-351
Mfr. Part No.TMP36GT9Z
PHP71.638
Each (In a Pack of 5)
units
Temperature Emitter Follower Voltage ±3°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
RS Stock No. 866-0247
Mfr. Part No.LM35DT/NOPB
PHP96.599
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. 912-8794
Mfr. Part No.TMP36GT9Z
PHP50.64
Each (In a Bag of 100)
units
Temperature Emitter Follower Voltage ±3°C Through Hole 3 -40 °C -40 → +125 °C +125 °C 2.7 V 5.5 V TO-92 5.21mm 5.33mm
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