Target: human body induction
Model: RPTA-646
Detection principle: pyroelectric effect
Characteristics: Quad element, used for the design of ceiling products; direction detection can be realized with appropriate circuit.
Size: TO-5 9.1x4.5mm
Working conditions: Working voltage:3-15V
Receiving wavelength: 5-14um

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Pyroelectric Infrared Sensor detects the infrared radiation by using the temperature-dependent feature.
It suppresses the interference caused by temperature change, adopts the method of quad sensing elements complementary which improves the stability of the sensor.
This PIR sensor can be widely used in safety device, burglar alarm, automatic door, auto light control and intelligent toys.


  • Security, Intrusion alarm, Indoor access management;
  • Human body detection lighting;
  • Auto control door,smart home;
  • Smart office appliance;


  • High sensitivity and excellent signal to noise ratio
  • Excellent immunity to interference
  • Strong anti-white light ability
  • Adopting quad-element compensation structure, to resist external environmental interference


Model No. RPTA-646
Standard encapsulation: TO-5
Infrared receiving electrode 2×1mm,4 sensitive elements
Window size: 4.9×4.9mm
Receiving wave length: 5~14µm
Transmittance >75%
Output signal peak[Vp-p] ≥5500mV
Sensitivity ≥3200V/W
Detection rate (D*): 1.4 ×108cmHz1/2/W
Noise peak[Vp-p]: <110mV
Output balance degree: <10%
Source voltage: 0.3~1.1V
Current <25uA @Rs=47K
Working voltage: 3~15V
Working temperature: -30~70ºC
Storage temperature: -40~80ºC
    Incidence angle map:

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.