Temperature Sensors

Temperature Sensors are the device which measures the amount of heat energy or coldness that is generated by an object or system. It allows sensing/detecting any physical change to that temperature producing either an analogue or digital output.


A temperature sensor consists of two basic physical types: Contact temperature sensor types and Non-contact temperature sensor types. Contact types of temperature sensor are required to be in physical contact with the object being sensed and use conduction to monitor changes in temperature. Non-contact types of temperature sensor use convection and radiation to monitor changes in temperature.


A variety of devices are available to measure temperature, the most common of which are thermocouples, thermisters, resistance temperature detectors (RTD), and infrared types. Thermocouples are the most versatile, inexpensive, and have a wide range (up to 1200 deg C typical). These consist of two dissimilar metal wires joined at the ends to create the sensing junction. When used in conjunction with a reference junction, the temperature difference between the reference junction and the actual temperature shows up as a voltage potential.


Thermisters are semiconductor devices whose resistance changes as the temperature changes. They are good for very high sensitivity measurements in a limited range of up to 100 deg C. The relationship between the temperature and the resistance is nonlinear. The RTDs use the phenomenon that the resistance of a metal changes with temperature. They are linear over a wide range and most stable and have better accuracy and resolution than thermocouples. RTDs use precision wire, usually made of platinum, as the sense element.


Infrared type sensors use the radiation heat to sense the temperature from a distance. These noncontact sensors can also be used to sense a field of vision to generate a thermal map of a surface.


Return to main Sensors page

Videos

ADT7320 and ADT7420: High Accuracy Digital Temp Sensors

MAX31850/1 1-Wire Thermocouple-to-Digital Converter

Body Temperature Measurement: Send and Receive With Wearable NFC

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
LM335AZ
LM335AZ - Temperature Sensor IC, Voltage, ± 1°C, -40 °C, +100 °C, TO-92, 3 Pins

89K1311

Temperature Sensor IC, Voltage, ± 1°C, -40 °C, +100 °C, TO-92, 3 Pins

STMICROELECTRONICS

TEMPERATURE SENSOR, 1C, TO-92-3; IC Output Type:Voltage; Sensing Accuracy Range:± 1°C; Sensing Temperature Min:-40°C; Sensing Temperature Max:+100°C; Sensor Case Style:TO-92; No. of Pins:3Pins; Supply Voltage Min:5V; Product Range:- RoHS Compliant: Yes

You previously purchased this product. View in Order History

199 in stock + Check Stock & Lead Times

199 deliver in 1-3 days from our US warehouse

Each

Available in quantity shown

1+ $2.13 10+ $1.82 100+ $1.40 500+ $1.24 1000+ $1.08 2500+ $0.871 10000+ $0.845 More Pricing...

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
AMG8833
AMG8833 - Temperature Sensor IC, Infrared, Digital, ± 2.5°C, 0 °C, 80 °C, Module, 14 Pins

05AC7504

Temperature Sensor IC, Infrared, Digital, ± 2.5°C, 0 °C, 80 °C, Module, 14 Pins

PANASONIC

TEMPERATURE SENSOR, IR, 2.5DEG C, MODULE; IC Output Type:Digital; Sensing Accuracy Range:± 2.5°C; Sensing Temperature Min:0°C; Sensing Temperature Max:80°C; Sensor Case Style:Module; No. of Pins:14Pins; Supply Voltage Min:3V RoHS Compliant: Yes

You previously purchased this product. View in Order History
  • 152 available for 1 - 3 business days delivery
  • 160 deliver in 2-4 business days - UK Stock
+ Check Stock & Lead Times

152 deliver in 1-3 days from our US warehouse

160 deliver in 2-4 business days - UK Stock

More stock available week commencing 6/24/24

Each

1+ $35.04 5+ $33.75 10+ $32.55 25+ $31.04 50+ $29.91 100+ $29.48 More Pricing...

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1