Product Details
LHI778 Infrared Thermoelectric Sensor For Human - body Movement
Detectors
Product Features:
- It has a TO - 5 metal housing and different window sizes are
available6. The LHI778 is designed to meet low - cost requirements
and is equipped with a small - sized optical window.
- It is a dual - element detector, which includes a dual - element
pyro - electric ceramic element with a FET in source - follower
connection.
- It provides high responsivity, excellent common - mode performance
(match), and has low noise in both steady - state and temperature -
change conditions.
- It has improved EMI protection and reduced white - light immunity
(WLI).
Technical Parameters:
- Minimum Responsivity (Rmin): 3.3
- Typical Responsivity (Rtyp): 4.2
- Maximum Match (Mmax): 10
- Maximum Noise (Nmax): 50
- Typical Noise (Ntyp): 20
- Detectivity (D*): 20
- Horizontal Field of View: 71°
- Vertical Field of View: 71°
- Source Voltage (Operating Voltage): 0.2 - 1.5V
Application Scope:
It is suitable for human - body movement detectors, passive
infrared anti - theft alarms, automatic light switches, intrusion
alarms,
high - end motion sensors, etc.
Packaging and Certification:
- Packaging: Usually in tray packaging.
- Certification: CE, RoHS.
Parameter | Value | Unit |
---|
Element Size | 2×1 | mm² |
Sub - strate Material | Silicon | - |
Responsivity | ≥3300 | V/W |
Output Balance | <10 | % |
Noise | ≤50 | μVpp |
Detectivity (D*) | ≥5×10⁷ | cmHz½/W |
Source Voltage | 0.2 - 1.5 | V |
Operating Voltage | 2 - 15 | V |
Output Impedance | ≤10 | kΩ |
Operating Current | 8.5 - 24 | μA |
Operating Temperature | - 40 - +85 | ℃ |
Company Profile
Yijiajie Electronics is a full range of silicon pressure sensors
from the United States, FREESCALE/, GE, MEAS, SMI, and a full range
of sensing and control products from the United States pressure,
temperature and humidity, gas flow, current, Hall effect, etc.,
Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

