Sign In | Join Free | My webtextiles.com
webtextiles.com
Products
Search by Category
Home > Alarm >

Dual Element Passive Infrared Motion Sensor / PIR Motion Sensor LHI778 With TO-5 Housing

Categories Passive Electronic Components
Brand Name: ANYO
Model Number: LHI778
Place of Origin: CHINA
MOQ: 5000pcs
Price: Negotiation
Payment Terms: L/C, T/T
Supply Ability: 50000pcs per day
Delivery Time: 8-10 work days
Packaging Details: Customized carton
Other Name: PIR sensor
Element size: 2*1 mm2
Responsivity: 3300~4000V/W
Match: 1~10%
Operating voltage: 2~15V
Noise: 20~50μVpp
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
  • Product Details
  • Company Profile

Dual Element Passive Infrared Motion Sensor / PIR Motion Sensor LHI778 With TO-5 Housing

Dual element passive PIR motion sensor LHI778 with TO-5 housing


Description:

PIR sensors are more complicated than many of the other sensors explained (like photocells, FSRs and tilt switches) because there are multiple variables that affect the sensors input and output.

The PIR sensor itself has two slots in it, each slot is made of a special material that is sensitive to IR. The lens used here is not really doing much and so we see that the two slots can 'see' out past some distance (basically the sensitivity of the sensor). When the sensor is idle, both slots detect the same amount of IR, the ambient amount radiated from the room or walls or outdoors. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor, which causes a positive differential change between the two halves. When the warm body leaves the sensing area, the reverse happens, whereby the sensor generates a negative differential change. These change pulses are what is detected.


The IR sensor itself is housed in a hermetically sealed metal can to improve noise/temperature/humidity immunity. There is a window made of IR-transmissive material (typically coated silicon since that is very easy to come by) that protects the sensing element. Behind the window are the two balanced sensors.


The LHi 778 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 element with Fet in source follower connection.
LHi 778 detector is available in TO-5 housing with standard infrared filter. It provides high responsivity with excellent common mode performance (match) and low noise at steady state and temperature changes.


Parameters:

Min.TypicalMax.UnitsCondition
Element size2*1mm22 elements
Responsivity33004000V/W100℃, 1Hz
Match110%
Noise2050μVpp25℃, 0,3...10Hz
Offset voltage0.21.55VRs=47kΩ, 25℃
NEP7.5*1028*10

W✓Hz

1Hz Bw, 100℃,1Hz
D*5*1019*10cm✓Hz/W1HzBw, 100℃,1Hz
Output impedance51047kΩ Load Res.
Operating voltage215VRs=47kΩ, 25℃
Operating temperature-4085non permanent
Storage temperature-4085non permanent

Dimension:(mm)


Frequency response:

Buy Dual Element Passive Infrared Motion Sensor / PIR Motion Sensor LHI778 With TO-5 Housing at wholesale prices
Send your message to this supplier
 
*From:
*To: Ningbo Anyo Import & Export Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0