Product Details Portlet

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.
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High Accuracy, Smaller Footprint, East to Work With

OMRON's unique MEMS technology allows combining thermopile elements and ASICs into one package resulting to ultra-compact footprint.

  • MEMS Thermal (IR*1 sensor) measures the surface temperature of objects without touching them when the thermopile element absorbs the amount of radiant energy from the object.

    Low noise

    Achieving the highest level of SNR*2 in the world*3

    Easy connection

    Converts sensor signal to digital temperature output allowing easy use of microcontroller

    Compact
    size

    Space-saving design, well-suited for embedded applications

  • D6T MEMS Thermal Sensors
  • *1. IR: Infrared Ray
  • *2. SNR: Signal-to-Noise Ratio. Compares the level of a signal to the level of background noise
  • *3. As of December 2017, according to OMRON research

Cross-section view of D6T sensor

  • Cross-section view
  • MEMS thermopile / Detection principle

Sensing

  • Human Detection

    D6T series sensors can detect human presence by sensing changes in human body temperature with respect to the surrounding temperature.
    Application fields
    • Air conditioners
    • lighting systems
    • security systems
    • nursing care and monitoring equipment

    D6T series sensors can detect the slightest temperature changes that can be used in variety of applications including energy-efficient home appliances and security systems. The sensors can also be used in the application fields of HEMS (Home Energy Management System) and BEMS (Building Energy Management System).

  • Human Detection

Installation condition

Recommended type: D6T-44L-06 (4×4−element / viewing angle: X=44.2 Y=45.7° / Object temperature range: 0 – 50°C)

Installation condition
  • Object Detection

    D6T sensors can detect objects by pinpointing the target object temperature.
    Application fields
    • Industrial equipment
    • non-contact thermometers
    • refrigerators
    • microwave ovens
    • IH cooking heaters
    • data centers

    D6T sensors let you measure temperature without the need to physically touch the object. This allows measuring temperature where it was not possible for contact thermal sensors due to space shortage. The sensors can be used in a wide range of applications including FEMS (Factory Energy Management System).

  • MEMSサーモパイル / 検出原理

Comparison with Pyroelectric Sensor

Both the pyroelectric sensor and non-contact MEMS thermal sensor can detect even the slightest amount of radiant energy from objects such as infrared radiation and convert them into temperature readings. However, unlike pyroelectric sensor that relies on motion detection, non-contact MEMS thermal sensor is able to detect the presence of stationary humans (or objects).

MEMS thermal sensor (thermopile)

Converts temperature readings by “continuously detecting the temperature of radiant energy” in its field of view.
MEMS thermal sensor (thermopile)
Able to detect both stationary and motion state of humans (objects).

Pyroelectric sensor

Converts temperature readings only when detecting “temperature changes in the radiant energy” in its field of view.
Pyroelectric sensor
Unable to detect stationary human (object) presence

Ordering Information

ModelElement typeShape
D6T-44L-064×4D6T-44L-06
D6T-8L-091×8D6T-8L-09
D6T-1A-011×1D6T-1A
D6T-1A-02

Ratings

ItemD6T-44L-06D6T-8L-09D6T-1A-01D6T-1A-02
Power supply voltage4.5 to 5.5 VDC
Storage temperature range*−10 to 60°C−20 to 80°C−40 to 80°C
Operating temperature range*0 to 50°C0 to 60°C
Storage humidity range*85% max.95% max.
Operating humidity range*20% to 85%20% to 95%
  • * with no icing or condensation

Characteristics

ItemD6T-44L-06D6T-8L-09D6T-1A-01D6T-1A-02
View angle*¹X direction44.2°54.5°58.0°26.5°
Y direction45.7°5.5°
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
Item5 mA typical3.5 mA typical

Functions

ItemD6T-44L-06D6T-8L-09D6T-1A-01D6T-1A-02
Object temperature detection range*25 to 50°C−40 to 80°C
Reference temperature detection range*25 to 45°C
Output specificationsDigital values that correspond to the object temperature [Tx] and
reference temperature [Ta] are output from a serial communications port.
Output formBinary code (10 times the detected temperature [°C])
Communications formI²C compliant
Temperature resolution (NETD)*30.06°C0.03°C0.02°C0.06°C

Object Temperature Detection Range

  • D6T-44L-06, D6T-8L-09, D6T-1A-01
    Object Temperature Detection Range : D6T-44L-06, D6T-8L-09, D6T-1A-01
  • D6T-1A-02
    Object Temperature Detection Range : D6T-1A-02

Connections

  • Thermal Sensor Configuration Diagram

    Thermal Sensor Configuration Diagram
  • Terminal Arrangement

    NameTerminalFunctionRemarks
    GND1Ground
    VCC2Positive power supply
    voltage input
    SDA3Serial data I/O lineConnect the open-drain SDA
    terminal to a pull-up resistor.
    SCL4Serial clock inputConnect the open-drain SCL
    terminal to a pull-up resistor.

Field of View Characteristics

  • * 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

  • Field of view in X Direction
    Field of view in X Direction
  • Field of view in Y Direction
    Field of view in Y Direction
  • Detection Area for Each Pixel
    Detection Area for Each Pixel

D6T-8L-09

  • Field of view in X Direction
    Field of view in X Direction
  • Field of view in Y Direction
    Field of view in Y Direction
  • Detection Area for Each Pixel
    Detection Area for Each Pixel

D6T-1A-01

  • Field of view in X Direction
    Field of view in X Direction
  • Field of view in Y Direction
    Field of view in Y Direction
  • Detection Area for Each Pixel
    Detection Area for Each Pixel

D6T-1A-02

  • Field of view in X Direction
    Field of view in X Direction
  • Field of view in Y Direction
    Field of view in Y Direction
  • Detection Area for Each Pixel
    Detection Area for Each Pixel

Dimensions

(Unit: mm)

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

D6T-44L-06

  • D6T-44L-06
  • Supporting and Mounting Area
    (Shaded Portion)
    Top View
    Top View
    Bottom View
    Bottom View

D6T-8L-09

  • D6T-8L-09
  • Supporting and Mounting Area
    (Shaded Portion)
    Top View
    Top View
    Bottom View
    Bottom View

D6T-1A-01 / D6T-1A-02

  • D6T-1A-01 / D6T-1A-02
  • Supporting and Mounting Area
    (Shaded Portion)
    Top View
    Top View
    Bottom View
    Bottom View

D6T-HARNESS-02
(Optional - sold separately)

D6T-HARNESS-02

Safety Precautions

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, and other foreign matter will adhere to the lens. This may prevent correct temperature measurements.
  • Do not use the Sensor in any of the following locations.

    • Locations where the Sensor may come into contact with water 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. Never subject it to an electrical load that exceeds the absolute maximum ratings for even an instance. The circuits may be damaged. Install protective circuits as required so that the absolute maximum ratings are not exceeded.
  • Keep as much space as possible between the Sensor and devices that generates high frequencies (such as high-frequency welders and high-frequency sewing machines) or surges.
  • Attach a surge protector or noise filter on nearby noise-generating devices (in particular, motors, transformers, solenoids, magnetic coils, or devices that have an inductance component).
  • In order to prevent inductive noise, separate the connector of the Sensor from power lines carrying high voltages or large currents. Using a shielded line is also effective.
  • If a switching requlator is used, check that malfunctions will not occur due to switching noise from the power supply.
Handling
  • This Sensor is a precision device. Do not drop it or subject it to excessive shock or force. Doing so may damage the Sensor or change its characteristics. Never subject the connector to unnecessary force. Do not use a Sensor that has been dropped.
  • Take countermeasures against static electricity before you handle the Sensor.
  • Turn OFF the power supply to the system before you install the Sensor. Working with the Sensor while the power supply is turned ON may cause malfunctions.
  • Secure the Sensor firmly so that the optical axis does not move.
  • Install the Sensor on a flat surface. If the installation surface is not even, the Sensor may be deformed, preventing correct measurements.
  • Do not install the Sensor with screws. Screws may cause the resist to peel from the board. Secure the Sensor in a way that will not cause the resist to peel.
  • Always check operation after you install the Sensor.
  • Use the specified connector (GHR-04 from JST) and connect it securely so that it will not come off. If you solder directly to the connector terminals, the Sensor may be damaged.
  • Make sure to wire the polarity of the terminals correctly. Incorrect polarity may damage the Sensor.
  • Never attempt to disassemble the Sensor.
  • Do not use the cable harness to the other product.