BPW21R Datasheet, PDF (1/5 Pages) Vishay Siliconix – Silicon PN Photodiode

Silicon PN Photodiode
Description
BPW21R is a planar Silicon PN photodiode in a
hermetically sealed short TO–5 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.
Features
D Hermetically sealed TO–5 case
D Flat glass window with built–in color correction fil-
ter for visible radiation
D Cathode connected to case
D Wide viewing angle ϕ = ± 50 °
D Large radiant sensitive area (A=7.5 mm²)
D Suitable for visible radiation
D High sensitivity
D Low dark current
D High shunt resistance
D Excellent linearity
D For photodiode and photovoltaic cell operation
Applications
Sensor in exposure and color measuring purposes
BPW21R
Vishay Telefunken
Document Number 81519
Rev. 2, 20-May-99
www.vishay.de • FaxBack [phone]
1 (5)