Downloads
- PYD_1384 Dual-element Pyrodetector Excelitas Datasheet
- PYD_1388 Dual-element Pyrodetector Excelitas Datasheet
- PYD_1394 Dual-element Pyrodetector Excelitas Datasheet
- PYD_1378 Dual-element Pyrodetector PIR Excelitas Datasheet
- PYD Series Dual-element Pyrodetectors PIR Excelitas Datasheet
- IR Basics, Pyrodetecors & Gas Monitoring Excelitas White Paper
- PYD_1398 Dual-element Large_FoV Pyrodetector Excelitas Datasheet
Product information "PYD Series Dual-element Pyrodetectors PIR"
Analog Output; Responsivity 4.2 kV/W Typ.; Max. Match 10%; Max. Noise 50 µVpp; FoV Horizontal 71°-110°; FoV Vertical 71°-110°; Operating Voltage 2.0-10 VDC
Excelitas PYD Series of dual-element pyrodetectors are well established as the performance standard in motion detection.
This series’ design features two sensing elements connected to each other in reverse polarity (opposed series connection) with a FET in-source follower circuit to provide an AC-signal with motion and common mode rejection for non-moving radiation. Users can specify various window sizes to meet desired fields-of-view.
Integrated into a TO-5 metal housing with a small optical window, the Excelitas PYD 1378 dual-element pyrodetector (replacement to the LHi 778) delivers exceptional economy and value for high-volume motion detection applications without sacrificing performance.
PYD 1388 (replacement to LHi 878) and PYD 1398 (replacement to LHi 968) dual-element pyrodetectors represent Excelitas’ standard analog pyrodetector offering. They are integrated into a robust TO-5 metal housing with an optical window. The PYD 1388 is the base model, while the PYD 1398 is equipped with additional features such as a larger window to reduce white light sensitivity and a gate resistor for better low-temperature performance.
Both sensors are available in two EMI versions. The standard version features one RC-filter at drain and source pin. For applications in heavy EMI conditions (5G and antennas close to the sensor), a version with an additional RC-filtering stage is available to further reduce interference effects of electromagnetic disturbances.
PYD 1384 (replacement to LHi 874) and PYD 1394 (replacement to LHi 944) dual-element pyrodetectors are the low-profile variants of the PYD 1388/1398 standard analog PIRs in a low-profile TO-39 metal housing with optical window. The PYD 1384 is the standard base model of the low-profile series, while the PYD 1394 is equipped with a larger window that provides a wider field-of-view.
An additional drain resistor and output capacitor further reduce interference effects of electromagnetic disturbances for EMI sensitive applications. Ideally suited for motion detection, the low-profile design permits two pyros to be space-efficiently integrated together to enable a 180° field-of-view.
Applications: Optimal for Cost-effective Designs; Long-distance Human Motion Detection (With Lens); Energy-saving Applications; Intrusion Alarms; Horizontal Mounting Applications
Please note that Excelitas products are available from us only in Denmark, Finland, Iceland, Norway, and Sweden.
Excelitas’ thermal infrared sensors like thermopiles or pyroelectric IR detectors (PIR) are used for motion detection, presence monitoring, temperature measurement and gas detection. Excelitas’ broad portfolio of sensors, detectors and emitters also includes phototransistors, photodiodes, PIN photodiodes, avalanche photodiodes (APD), ambient light sensors, single photon detectors and many more.
The products can be found in a vast array of applications across automotive, consumer products, defense and aerospace, industrial, medical, safety and security and sciences sectors.
Please note that Excelitas products are available from us only in Denmark, Finland, Iceland, Norway, and Sweden.