Extended Detectors

Type LIE, LIM: Detectors with standard design
LME, LMM: Detectors with reduced microphonic effect
LRE, LRM: Detectors with micromechanical frame
LFP: Detectors with tunable Fabry‐Pérot filter
Housing TO18, TO46: 5.4 mm in diameter
TO5, TO39: 9.2 mm in diameter
TO8: 15.2 mm in diameter
The number following the hyphen indicates the number of pins.
Channel Number of measuring channels
Aperture (mm) Size of the circular or rectangular aperture through which radiation hits the sensitive elements.
Operating modes Size of the circular or rectangular aperture through which radiation hits the sensitive elements.
JFET/OpAmp Integrated signal condition like integrated junction field effect transistors (JFET) for detectors in voltage mode or integrated operational amplifiers (OpAmp) for detectors in current mode.
Thermal Compensation A pyroelectric detector is sensitive to changes in temperature. Changes in ambient temperature have an influence on the measurement signal and shifts the operating point. This effect reduces a thermal compensation. Therefore, each pyroelectric element gets an additional optically inactive element, which compensates for unwanted currents.
Low Micro Patented micromechanical chip attachment (LowMicro) by InfraTec to reduce the effects of interfering impact sounds.
Detectivity* As a key parameter, the specific detectivity D* characterizes the signal-to-noise ratio of infrared detectors.
InfraTec Detector Filter Special Detectors
Aperture (mm)
Operating modes
Thermal Compensation
Low Micro
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LIE-312TO391ø 5.0Voltage ModeJFETNoNo8.0LIE-312

1Hz ... 4kHz, metal black coating

LIE-312fTO391ø 5.0Voltage ModeJFETNoNo4.5LIE-312f

10Hz ... 4kHz, metal black coating

LIE-332fTO391ø 5.0Voltage ModeJFETNoNo2.8LIE-332f

10Hz ... 4kHz, metal black coating

*(500 K, 10 Hz, 1 Hz, 25 ºC, without window) [10E+8cmHz1/2/W]

Detector Search

InfraTec offers five different product groups including approximately 50 standard pyroelectric detectors. Choose your suitable infrared detectors with the help of our detailed detector search.

Overview of all standard infrared detectors
Sensor division InfraTec detectors overview