Detailed Product Description

The LHi 874 and LHi 878 pyroelectric infrared-detector series are the standard

dual element design recommended for all variants of motion control. They

include a dual element pyro-electric ceramic with FET in source follower

connection.

The LHi 874 is available as TO-39,  whereas LHi 878 detector is available  in

TO-5 housing with standard infrared filter. They both offer high responsivity

with excellent common mode performance (match). For both variants RF

improved options are available.