BPW20R
Vishay Telefunken
1 (5)Rev. 2, 20-May-99
www.vishay.de • FaxBack +1-408-970-5600Document Number 81517
Silicon PN Photodiode
Description
BPW20R 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 cir-
cuit photocurrent is linear over seven decades of
illumination level.
On the other hand, there is a strictly logarithmic
correlation between open circuit voltage and illumina-
tion over the same range.
Equipped with a clear, flat glass window, the spectral
responsitivity reaches from blue to near infrared.
94 8482
Features
C0068 Hermetically sealed TO–5 case
C0068 Flat glass window
C0068 Cathode connected to case
C0068 Wide viewing angle ϕ = ± 50 C0176
C0068 Large radiant sensitive area (A=7.5 mm
2
)
C0068 Suitable for visible and near infrared radiation
C0068 High sensitivity
C0068 UV enhanced
C0068 Low dark current
C0068 High shunt resistance
C0068 Excellent linearity
C0068 For photodiode and photovoltaic cell operation
Applications
Sensor for light measuring techniques in cameras, photometers, color analyzers, exposure meters (e.g. solari-
ums) and other medical and industrial measuring and control applications.
Absolute Maximum Ratings
T
amb
= 25C0095C
Parameter Test Conditions Symbol Value Unit
Reverse Voltage V
R
10 V
Power Dissipation T
amb
C0120 50 C0176C P
V
300 mW
Junction Temperature T
j
125 C0176C
Operating Temperature Range T
amb
–55...+125 C0176C
Storage Temperature Range T
stg
–55...+125 C0176C
Soldering Temperature t C0120 5 s T
sd
260 C0176C
Thermal Resistance Junction/Ambient R
thJA
250 K/W