Pyroelectric Infrared Sensors for Reflow Soldering

Part Number Information
Part #: Price/Availability:
IRS-B Buy Now

SMD type Pyroelectric infrared sensors, IRS series, exhibit high sensitivity and reliable performance made possible by Murata's ceramic technology and packaging technology developed over many years. IRS-B series is approximately 50% smaller in volume and 10% thinner than our previous surface mount model. Compared with common lead-type models, it is significantly smaller with a lower profile approximately 20% less in volume and 50% less in thickness than the former.


  • Reflow surface-mounting support
  • Smallest and ultra-thin throughout the trade (4.7×4.7×2.4mm)
  • High sensitivity
  • Achieves superior electromagnetic noise resistance characteristics


  • Human detection
  • TV
  • Air conditioning
  • Digital photo-frame
  • Personal computers
  • Automatic switches for lighting equipment
  • WEB cameras (IP cameras)
  • Automatic warm water cleaning toilet seats
  • Security devices
  • Other automatic switches (ex. :LCD monitors, Air purifiers, Ventilation fans)
  • Home electronics for Eco