Vishay Telefunken BPW21R Datasheet

Silicon PN Photodiode

Description

BPW21R is a planar Silicon PN photodiode in a
hermetically sealed short TO–5 case, especially de­signed for high precision linear applications.
Due to its extremely high dark resistance, the short
circuit photocurrent is linear over seven decades of il­lumination level.
On the other hand, there is a strictly logarithmic
correlation between open circuit voltage and illumina­tion 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

BPW21R

Vishay Telefunken

94 8394

D

Hermetically sealed TO–5 case

D

Flat glass window with built–in color correction fil­ter 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

Document Number 81519
Rev. 2, 20-May-99

www.vishay.de • FaxBack [phone]

1 (5)

BPW21R

Vishay Telefunken

Absolute Maximum Ratings

T

= 25_C

amb

Parameter Test Conditions Symbol Value Unit
Reverse Voltage V
Power Dissipation

T

amb

x 50 °C
Junction Temperature T
Operating Temperature Range T
Storage Temperature Range T
Soldering Temperature

t x 5 s

Thermal Resistance Junction/Ambient R

P

amb

stg

T

sd

thJA

R
V

j

Basic Characteristics

T

= 25_C

amb

Parameter Test Conditions Symbol Min Typ Max Unit
Forward Voltage IF = 50 mA V
Breakdown Voltage IR = 20 mA, E = 0 V
Reverse Dark Current VR = 5 V, E = 0 I
Diode Capacitance VR = 0 V, f = 1 MHz, E = 0 C

VR = 5 V, f = 1 MHz, E = 0 C
Dark Resistance VR = 10 mV R
Open Circuit Voltage EA = 1 klx V
Temp. Coefficient of V

o

EA = 1 klx TK
Short Circuit Current EA = 1 klx I
Temp. Coefficient of I

k

EA = 1 klx TK
Reverse Light Current EA = 1 klx, VR = 5 V I
Sensitivity VR = 5 V, EA = 10–2...105 lx S 9 nA/lx
Angle of Half Sensitivity ϕ ±50 deg
Wavelength of Peak Sensitivity
Range of Spectral Bandwidth
Rise Time VR = 0 V, RL = 1k W,

l

= 660 nm

Fall Time VR = 0 V, RL = 1k W,

l

= 660 nm

(BR)

l

l

0.5

t

t

F

10 V

ro

D
D
D

280 450 mV

o

Vo

k

ra

4.5 9

lk

4.5 9

p

400 pF

–0.05 %/K

565 nm

420...675 nm

r

f

10 V
300 mW
125

–55...+125
–55...+125

260

°
°
°
°

250 K/W

1.0 1.3 V

2 30 nA

1.2 nF

38 G

–2 mV/K

m

m

3.1

3.0

m

m

C
C
C
C

W

A

A

s

s

www.vishay.de • FaxBack [phone]
2 (5) Rev. 2, 20-May-99

Document Number 81519