BPW21R
Vishay Telefunken
Silicon PN Photodiode
Description
BPW21R is a planar Silicon PN photodiode in a
hermetically sealed short TO鈥? case, especially de-
signed for high precision linear applications.
Due to its extremely high dark resistance, the short
circuit photocurrent is linear over seven decades of il-
lumination level.
On the other hand, there is a strictly logarithmic
correlation between open circuit voltage and illumina-
tion over the same range.
The device is equipped with a flat glass window with
built in color correction filter, giving an approximation
to the spectral response of the human eye.
94 8394
Features
D
Hermetically sealed TO鈥? case
D
Flat glass window with built鈥搃n color correction fil-
ter for visible radiation
D
D
D
D
D
D
D
D
D
Cathode connected to case
Wide viewing angle
蠒
=
鹵
50
擄
Large radiant sensitive area (A=7.5 mm
2
)
Suitable for visible radiation
High sensitivity
Low dark current
High shunt resistance
Excellent linearity
For photodiode and photovoltaic cell operation
Applications
Sensor in exposure and color measuring purposes
Document Number 81519
Rev. 2, 20-May-99
www.vishay.de
鈥?/div>
FaxBack +1-408-970-5600
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