
Features
l Quadrant (2 × 2) element format
l Low cross-talk: 2 % Max.
l Wide spectral response range: 190 to 1000 nm
l High-speed response: fc=20 MHz
l TO-5 metal package
Applications
l Laser beam axis alignment
l Position sensing
PHOTODIODE
Si PIN photodiode
Quadrant Si PIN photodiode
S4349
S4349 is a quadrant Si PIN photodiode having sensitivity in the UV to near IR spectral range. A quadrant element format allows position sensing
such as for laser beam axis alignment.
s General ratings
Parameter
Symbol
Value
Unit
Window material
-
Quartz glass
-
Active area
A
3.0/4 element
mm
Element gap
-
100
m
s Absolute maximum ratings
Parameter
Symbol
Value
Unit
Reverse voltage
VR Max.
20
V
Operating temperature
Topr
-20 to +60
°C
Storage temperature
Tstg
-55 to +80
°C
s Electrical and optical characteristics (Ta=25
°C, per 1 element)
Parameter
Symbol
Condition
Typ.
Max.
Unit
Spectral response range
λ
190 to 1000
-
nm
Peak sensitivity wavelength
λp
720
-
nm
Photo sensitivity
S
λ=λp
0.45
-
A/W
Dark current
ID
VR=5 V
0.01
0.2
nA
Temperature coefficient of ID
TCID
1.12
-
times/°C
Cut-off frequency
fc
VR=5 V, RL=50
λ=780 nm, -3 dB
20
-
MHz
Terminal capacitance
Ct
VR=5 V, f=1 MHz
25
-
pF
Noise equivalent power
NEP
VR=5 V,
λ=λp
4.0 × 10
-15
-
W/Hz
1/2
Cross-talk
CL
VR=5 V,
λ=780 nm
-2
%
1