Movement Detection

Pyrodetectors from Excelitas use the pyroelectric effect to recognize temperature variations by detecting changes in the infrared radiation received.

Excelitas was the first to introduce a family of detectors offering a digital signal output - the DigiPyro range is included in the table.

The devices shown below are suitable for for motion sensing and intrusion detection.

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Part Number	Application:	Special Feature:	Output Type:	Number of Elements:	Output channels:	Mounting Position:	Packaging:	Filter size XY mm:	Clear Filters
LHi968	Intrusion Alarm	White Light protection	Analog	Dual	Single	Wall	TO-5	5.2/4.2	INQUIRE
PYD1398	Intrusion Alarm	Internal RC network for higher RF immunity	Analog	Dual	Single	Wall	TO-5	5.2/4.2	INQUIRE
LHi1148	Intrusion Alarm	Opposite polarity channels for common mode RF and thermal effect reduction.	Analog	Four	Dual	Wall	TO-5	5.2/4.2	INQUIRE
PYQ1488	Intrusion Alarm	Diagonal element arrangement for movement detection without any preference of direction	Analog	Four	Dual	Ceiling	TO-5	4.6/3.4	INQUIRE
LHi778	Movement Detection	Small window size for cost saving	Analog	Dual	Single	Wall	TO-5	4.0/3.0	INQUIRE
LHi878	Movement Detection	Standard window size	Analog	Dual	Single	Wall	TO-5	4.6/3.4	INQUIRE
LHi874	Movement Detection	Low profile	Analog	Dual	Single	Wall	TO-39	4.6/3.4	INQUIRE
LHi944	Movement Detection	Low profile with Internal RC Network for higher RF immunity	Analog	Dual	Single	Wall	TO-39	5.2/4.2	INQUIRE
LHi1128	Movement Detection	Larger Hexagonal window	Analog	Four	Single	Ceiling	TO-5	5.9 on flats	INQUIRE
PYQ1398	Movement Detection	Internal RC network for higher RF immunity	Analog	Four	Single	Ceiling	TO-5	5.2/4.2	INQUIRE
PYD5131	Movement Detection	Miniaturised	Analog	Dual	Single	Wall	TO-46	2.5/2.5	INQUIRE
PYD5731	Movement Detection	Miniaturised Digital Output	Digital	Dual	Single	Wall	TO-46	2.5/2.5	INQUIRE
PYD1788	Movement Detection	Standard window	Digital	Dual	Single	Wall	TO-5	4.6/3.4	INQUIRE
PYD1798	Movement Detection	Large window	Digital	Dual	Single	Wall	TO-5	5.2/4.2	INQUIRE
PYQ2898	Movement Detection	Internal temperature reference	Digital	Four	Dual	Ceiling	TO-5	5.2/4.2	INQUIRE
PYQ5868	Movement Detection	Diagonal element arrangement for movement detection without any preference of direction	Digital	Four	Single	Ceiling	TO-5	5.9 on flats	INQUIRE
PYD1096	Movement Detection	Motion switch	Logic	Dual	Single	Wall	TO-5	5.2/4.2	INQUIRE
PYQ1098	Movement Detection	Motion switch	Logic	Four	Single	Wall	TO-5	5.2/4.2	INQUIRE