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Part Number
Size
R491
18
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Key Specifications
Drawing
Part Number
R491
Head on/Side on
SO
Size
18
Family
R491
ActiveDia./L
10mm
ActiveHeight
15mm
Min
185nm
Max
650nm
Peak
340nm
Cathode
Radiant Sens.
59mA/W
Window
UV Glass
Cathode
Type
Sb-Cs
Cathode Luminous Sensitivity
80
m
A/lm
I
D
0.5nA
AppliedVoltage
40V
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