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PYS4198 Datasheet

Single-Element Pyro Detectors

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Pyroelectric detectors for GAS MONITORING
Single-Element Pyro Detectors
For Gas Monitoring
LHi 807, PYS 4198 – High-Sensitivity Pyros
Applications
Gas Sensing and Monitoring
Features and Benefits
TO-5 metal housing
Selection of narrow band Filters
Thermal Compensation
Product Description
The LHi 807 TC series has become a standard solution for gas-sensing applications.
It is available with a range of narrow band filters, as specified on page 4 of this
brochure, for various gas species. The LHi 807 is usually supplied with temperature
compensation by a separate “blind” sensing element.
Similar features and benefits are included with the PYS 4198, which has a large
element size of 2x2 to offer more signal for non-focused optical systems. It is offered
with the thermal compensation element to compensate for thermal effects caused
by temperature changes of the housing.
LHI 807 TC and PYS 4198 TC
Parameter
Responsivity, min.
Responsivity, typ.
Match, max.
Noise, max.
Noise, typ.
spec. Detectivity
Field of View, horizontal
Field of View, vertical
Source Voltage
Height
Optical Element Location
Filter Size
Symbol
Rmin
R
Mmax
Nmax
N
D*
FoV
h
he /ho
X/Y
24
LHI 807 TC
2.2
3.5
-
50
15
17
135°
122°
0,2 … 1,5
4.2
3,2 / 0,75
5,2 / 4,2
PYS 4198 TC
1.2
2.0
-
50
10
130°
105°
0,2 … 1,5
4.2
2,9 / 1,1
5,2 / 4,2
Unit
kV/W
kV/W
%
µVpp
µVpp
107cm*√Hz/W
V
mm
mm
mm
Remarks
f = 1 Hz
f = 1 Hz
0,4…10Hz/20°C
0,4…10Hz/20°C
1Hz/ 1Hz BW
unobstructed
unobstructed
47 KO, 20°C
www.excelitas.com


Part Number PYS4198
Description Single-Element Pyro Detectors
Maker Excelitas
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