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. 187-6176
Mfr. Part No.EMC1833T-AE/RW
BrandMicrochip
$1.092
Each (On a Reel of 3000)
units
Temperature Digital - ±0.25°C Surface Mount 8 -40 °C -40 → +125 °C +125 °C 1.62 V 3.6 V WDFN 2mm 0.75mm
RS Stock No. 865-2312
Mfr. Part No.Si7020-A20-IM
$3.97
Each (In a Pack of 3)
units
Temperature & Humidity Digital Serial-I2C ±0.4 °C, ±4 %RH Surface Mount 6 -40 °C -40 → +125 °C +125 °C 1.9 V 3.6 V DFN 3mm 0.75mm
New
RS Stock No. 190-6794
Mfr. Part No.STTS751-0DP3F
$0.783
Each (On a Reel of 3000)
units
Temperature Digital SMBus ±2.5% Surface Mount 6 -40 °C -40 → +125 °C +125 °C 2.25 V 3.6 V UDFN 2.05mm 0.5mm
RS Stock No. 191-5037
Mfr. Part No.DS1731U+
$5.98
Each (In a Pack of 5)
units
Temperature Digital Serial-2 Wire ±1°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 2.7 V 5.5 V μSOP 3.1mm 0.95mm
RS Stock No. 190-4797
Mfr. Part No.MAX31826MUA+
$4.27
Each (In a Tube of 50)
units
Temperature Digital Serial-1 Wire ±0.5°C Surface Mount 8 -55 °C -55 → +125 °C +125 °C 3 V 3.7 V μMax 3.1mm 0.95mm
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Description:
Full interchangeability with no calibration required in standard conditions Instantaneous desaturation after long periods in saturation phase Compatible with automatized assembly processes, including Pb free and reflow processes Individual marking for traceabilityDFN type package Relative Humidity and Temperature ...