- 1-
S D - 4 0 2
Position Sensitive Diodes
K O D E N S H I
The SD-402 is position sensors for automatic focusing
of camera. It has 22 milimeter area.
F E A T U R E S
·Laser beam focusing/positioning is best performed
·High performance
A P P L I C A T I O N S
·Optical disk
D I M E N S I O N S
(Unit : mm)
R a t i n g
S y m b o l
I t e m
MAXIMUM RATINGS
Reverse voltage
Power dissipation
Operating temp.
Storage temp.
V
R
P
D
T o p r .
T s t g .
1 5
3 0
- 2 0 ~ + 8 5
- 2 5 ~ + 9 0
V
m W
U n i t
( T a = 2 5)
7 0 0 ~ 1 , 1 0 0
( T a = 2 5)
ELECTRO-OPTICAL CHARACTERISTICS
I
R
= 1 0A
V
R
= 1 V
V
R
=1V, E
V
= 1 0 0 0 l x
* 5
V
R
=1V, f=1MHz
V
R
=1V, Va=0.5V
V
R
= 1 V
I t e m
T y p .
1 2 0
9 4 0
3 0
2 0 0
0 . 0 3 6
Reverse voltage
Dark current
Light current
Spectral sensitivity
Peak wavelength
C a p a c i t a n c e
R e s i s t a n c e
Signal slope
Light current difference
V
R
I d
I
L
* 1
p
C t
R
S
* 2
* 3
I
L
/ I
L
* 4
1 5
1 0 0
1 4 0
1 0
2 6 0
±2
V
n A
A
n m
n m
p F
K
-
%
S y m b o l
C o n d i t i o n s
M i n .
M a x .
U n i t .
*1. I
L
= I
L 1
+ I
L 2
( I
L 1
=Light current of A1,I
L 2
=Light current of A2)
*2. Va=Voltage of Anode A1,A2
*3.
= 1 ( I
L 1
- I
L 2
) / ( I
L 1
+ I
L 2
) 1
*4. L = I
L 1
- I
L 2
*5. Color temp.=2856K standard Tungsten lamp
- 2-
S D - 4 0 2
Position Sensitive Diode
Power dissipation Vs.
Ambient temperature
Light current Vs.
Illuminance
Relative sensitivity Vs.
Wavelength
Relative light current Vs.
Ambient temperature
Relative resistance between
electrodes Vs. Ambient temperature
Dark current Vs.
Ambient temperature
Relative light current Vs.
Position
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