PYROELECTRIC DUAL ELEMENT DETECTORS FOR Pyroelectric detectors for Intrusion alarm INTRUSION ALARM LHi 968, PYD 1398 - High-End Pyro Applications * Intrusion alarm * High-end motion sensors Features and Benefits * TO-5 metal housing * Improved EMI protection Product Description The LHi 968 series with standard Dual Element configuration is performance-proven in high-end applications. The LHi 968 design provides for a reduced sensitivity to EMI and excellent White Light Immunity (WLI). The PYD 1398 has higher RF immunity and is optionally available with grading for lower white light sensitivity. * Improved WLI All dimensions in mm LHi 968, PYD 1398 - High-End Pyro Parameter Responsivity, min. Responsivity, typ. Match, max. Noise, max. Noise, typ. Spec. detectivity Field of view, horizontal Field of view, vertical Source voltage Operating voltage EMI performance WLI Height Optical element location Filter size Symbol LHI 968 PYD 1398 Unit Remark Rmin Rtyp Mmax Nmax Ntyp D* FoV FoV 3.3 4.0 10 50 20 19 100 100 0.2 - 1.5 2.0 ... 12 *** *** 4.2 2.6 / 0.95 5.2 / 4.2 3.3 4.0 10 50 20 19 100 100 0.2 - 1.5 2.0 ... 12 **** **** 4.2 2.6 / 0.95 5.2 / 4.2 kV/W kV/W % Vpp Vpp 107 cm*Hz/W f = 1 Hz f = 1 Hz h he / ho X/Y V V 0.4...10 Hz / 20 C 0.4...10 Hz / 20 C 1 Hz / 1 Hz BW / 20 C Unobstructed Unobstructed 47 k / 20 C / 5 V 47 k / 20 C mm mm mm *** Improved, **** Excellent 12 0211-741.jb18 XLTS_CAT Infrared Sensing.indd 12 www.excelitas.com 3/22/11 10:47 AM