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MEMS Thermal Sensors

D6T MEMS Thermal Sensors

High Sensitivity Enables Detection
of Stationary Human Presence

  • OMRON's unique MEMS and ASIC technology achieve a high SNR.
  • Superior noise immunity with a digital output.
  • High-precision area temperature detection with low cross-talk
    field of view characteristics.

Updated Aug. 31, 2012

This web page provides an excerpt from a datasheet. Refer to Datasheet and other applicable documents for more information.

Element type Model
4×4 D6T-44L-06
1×8 D6T-8L-06
Ratings
Item Specification
Power supply voltage 4.5 to 5.5 VDC
Storage temperature range -10 to 60°C (with no icing or condensation)
Operating temperature range 0 to 50°C (with no icing or condensation)
Storage humidity range 85% max. (with no icing or condensation)
Operating humidity range 20% to 85% (with no icing or condensation)

Characteristics
Item D6T-44L-06 D6T-8L-06
View angle *1 X direction 44.2° 62.8°
Y direction 45.7° 6.0°
Object temperature output
accuracy *2
Accuracy 1 ±1.5°C max.
Measurement conditions: Vcc = 5.0 V
(1) Tx = 25°C, Ta = 25°C
(2) Tx = 45°C, Ta = 25°C
(3) Tx = 45°C, Ta = 45°C
Accuracy 2 ±3.0°C max.
Measurement conditions: Vcc = 5.0 V
(4) Tx = 25°C, Ta = 45°C
Current consumption 5 mA typical

Functions
Item Specification
Object temperature detection range *2 5 to 50°C
Reference temperature detection range *2 5 to 45°C
Output specifications Digital values that correspond to the object
temperature (Tx) and reference temperature (Ta)
are output from a serial communications port.
Output form Binary code (10 times the detected temperature
(°C))
Communications form I2C compliant
Temperature resolution (NETD) 0.14°C
*1. Refer to Field of View Characteristics.
*2. Refer to Object Temperature Detection Range.



Connections
 

Terminal Arrangement
Terminal Name Function Remarks
1 GND Ground  
2 VCC Positive power supply
voltage input
 
3 SDA Serial data I/O line Connect the open-drain SDA
terminal to a pull-up resistor.
4 SCL Serial clock input Connect the open-drain SCL
terminal to a pull-up resistor.
Note: The 1×8 type has pixels 0 to 7.

Field of View Characteristics
  D6T-44L-06
Field of View in X Direction

Field of View in Y Direction


Note: Definition of view angle: Using the maximum Sensor output as a reference,
the angular range where the Sensor output is 50% or higher when
the angle of the Sensor is changed is defined as the view angle.


  D6T-8L-06
Field of View in X Direction
Field of View in Y Direction

Note: Definition of view angle: Using the maximum Sensor output as a reference,
the angular range where the Sensor output is 50% or higher when
the angle of the Sensor is changed is defined as the view angle.
D6T-44L-06


Supporting and Mounting Area (Shaded Portion)
Top View


Bottom View

Note: Due to insulation distance limitations, do
not allow metal parts to come into contact
with the Sensor.
Note: Unless otherwise specified, a tolerance of ±0.3 mm applies to all dimensions.


D6T-8L-06


Supporting and Mounting Area (Shaded Portion)
Top View


Bottom View

Note: Due to insulation distance limitations, do
not allow metal parts to come into contact
with the Sensor.
Note: Unless otherwise specified, a tolerance of ±0.3 mm applies to all dimensions.

Precautions for Correct Use

●Installation

The Sensor may not achieve the characteristics given in this datasheet due to the ambient environment or installation location. Before using the Sensor, please acquire an adequate understanding and make a prior assessment of Sensor characteristics in your actual system.

●Operating Environment

· Do not use the Sensor in locations where dust, dirt, oil, andother foreign matter will adhere to the lens. This may preventcorrect temperature measurements.
· Do not use the Sensor in any of the following locations.
· Locations where the Sensor may come into contact withwater or oil
· Outdoors
· Locations subject to direct sunlight.
· Locations subject to corrosive gases (in particular, chloride,sulfide, or ammonia gases).
· Locations subject to extreme temperature changes
· Locations subject to icing or condensation.
· Locations subject to excessive vibration or shock.

●Noise Countermeasures

· The Sensor does not contain any protective circuits. Neversubject it to an electrical load that exceeds the absolute maximumratings for even an instance. The circuits may be damaged.Install protective circuits as required so that the absolutemaximum ratings are not exceeded.
· Keep as much space as possible between the Sensor anddevices that generates high frequencies (such as high-frequencywelders and high-frequency sewing machines) orsurges.
· Attach a surge protector or noise filter on nearby noise-generatingdevices (in particular, motors, transformers, solenoids,magnetic coils, or devices that have an inductance component).
· In order to prevent inductive noise, separate the connector ofthe Sensor from power lines carrying high voltages or largecurrents. Using a shielded line is also effective.
· If a switching requlator is used, check that malfunctions will notoccur due to switching noise from the power supply.

●Handling

· This Sensor is a precision device. Do not drop it or subject it toexcessive shock or force. Doing so may damage the Sensor orchange its characteristics. Never subject the connector tounnecessary force. Do not use a Sensor that has beendropped.
· Take countermeasures against static electricity before youhandle the Sensor.
· Turn OFF the power supply to the system before you install theSensor. Working with the Sensor while the power supply isturned ON may cause malfunctions.
· Secure the Sensor firmly so that the optical axis does notmove.
· Install the Sensor on a flat surface. If the installation surface isnot even, the Sensor may be deformed, preventing correctmeasurements.
· Do not install the Sensor with screws. Screws may cause theresist to peel from the board. Secure the Sensor in a way thatwill not cause the resist to peel.
· Always check operation after you install the Sensor.
· Use the specified connector (GHR-04 from JST) and connect itsecurely so that it will not come off. If you solder directly to theconnector terminals, the Sensor may be damaged.
· Make sure to wire the polarity of the terminals correctly. Incorrectpolarity may damage the Sensor.
· Never attempt to disassemble the Sensor.

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