Excelitas Low-Profile, Dual-Element Pyrodetector Series (PYD 1384 / PYD 1394)
Excelitas PYD 1384/PYD 1394schematic
PART/ PYD 1384 (LHi 874); PYD 1394 (LHi 944)

PYD 1384, PYD 1394 Dual-Element Pyros

The Excelitas PYD 1384 (replacement to LHi 874) / PYD 1394 (replacement to LHi 944) Pyrodetector Series is the Low-Profile variant of the PYD 1388/PYD 1398 Standard Analog Pyrodetectors. The Low-Profile, Dual-Element Pyrodetectors feature two sensing elements in series connection and FET in source-follower circuit, connected into the low profile TO-39 Metal Housing with optical window a source follower circuit

Both Dual-Element, Low-Profile Pyrodetectors feature two sensing elements in opposed series connection and a source follower circuit. The PYD 1384 Pyrodetector represents the standard base model of the Low-Profile Series. 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, their low-profile design permits two Pyros to be space-efficiently integrated together so as to enable a 180° field-of-view.

ProductPhoto_IR_PYD-1394-schematic.png
  • Responsivity: 4.2 kV/W (typical)
  • Noise: 20 µVpp (typical) / 50 µVpp (max)
  • Operation requirements: 2.0-10 V
  • Housing with optical window: TO-39
  • PYD 1384, Field-of-view (horiz/vert): 95°/87°
  • PYD 1394, Field-of-view (horiz/vert): 110°/110°
  • Responsivity: 4.2 kV/W (typical)
  • Noise: 20 µVpp (typical) / 50 µVpp (max)
  • Operation requirements: 2.0-10 V
  • Housing with optical window: TO-39
  • PYD 1384, Field-of-view (horiz/vert): 95°/87°
  • PYD 1394, Field-of-view (horiz/vert): 110°/110°
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