Pyro Detector

This Pyrodetector Series represents Excelitas standard analog Pyrodetector offering. Our PYD 1388 (replacement to LHi 878) and PYD 1398 (replacement to LHi 968) Dual-Element Pyrodetectors feature two elements configured in a series connection with an FET in source-follower circuit. They are integrated into a robust TO-5 Metal Housing with an optical window

Features

- TO-5 metal housing for EMI shielding - High responsivity ceramic pyroelectric elements - Dual detector with 2 × 1 mm2 elements - 95°/100° field-of-view - Integrated FET in source follower configuration - Integrated EMI filtering stage

Specifications

- Responsivity: 4.2 kV/W (typical) - Noise: 20µVpp (typical) / 50µVpp (max) - Operation requirements: 2.0-10V - Housing with optical window: TO-5 - PYD 1388 Field-of-View (horiz/vert): 95°/87° - PYD 1398 Field-of-View (horiz/vert): 100°/100° - PYD 1388 with 1 EMI filtering stage - PYD 1398 with 2 EMI filtering stages

PYQ 1398, PYQ 1348 Single-Output Quad Pyros Excelitas' PYQ 1348 and PYQ 1398 Pyrodetectors provide four sensing elements in a geometric square placement. Electrically all elements are connected in series, forming one analog output signal. The two versions vary from each other by different window size and element spacings. This "Quad" Pyrodetector Series provides all four elements connected to one common output. All elements are electrically connected to one FET in source follower connection forming one analog output signal. Two different window options are provided: Rectangular window or square window size. Different geometrical placements are available on request. When being applied with suitable lens or mirror optics these detectors are used in ceiling mount devices. The PYQ 1348 is also available with smaller elements of 0.8x0.8 mm². Small elements are suitable for compact lenses and short detection distances.

Features

- TO-5 metal housing for EMI shielding - High-responsivity ceramic pyroelectric elements - Quad detector with 1 × 1 mm² (0.8 x 0.8 mm²) elements - 124° (140°) Field-of-view (PYQ 1348) - 103° Field-of-view (PYQ 1398) - Integrated FET in source follower configuration - Integrated EMI filtering stage Applications Mid (short)-distance motion detection (with lens) Energy saving applications Intrusion alarms Ceiling mounted applications

Specifications

- Responsivity: 6.5 (10.2) kV/W (typical) - Noise: 40 (60) µVpp (typical) / 100 (200) µVpp (max) - Operation requirements 2.0 -10 V - Housing with optical window: TO-5 - PYQ 1398 Field-of-view (horiz/vert): 103°/100° - PYQ 1348 Field-of-view (horiz/vert): 124°/124° (140°/140°)