Photo transistors
K O D E N S H I
S T - 3 0 9
DIMENSIONS
(Unit : mm)
The ST- 309 is a doble type high- s ens itivity Silicon
phototransistor. This phototransistor is compact size
FEATURES
• Side- viwering plastic package
• Bult- in 2ch phototransistors
APPLICATIONS
• Optical mouses
• E n c o d e r s
MAXIMUM RATINGS
( T a = ℃2)5
I t e m
S y m b o Rl a t i n g U n i t
C
V
E
O
C- E voltage
3 0
V
E
V
C
O
E- C voltage
4
V
C
Collector current
I
3 0
m A
m W
℃
C
Collector power dissipation
Operating temp.
P
-
T o p r .
T s t g .
T s o l .
-
2 5 ~ + 8 5
3 0 ~ + 1 0 0
2 6 0
Storage Temp.
-
℃
*
1
Soldering temp.
℃
*1. For MAX.5 seconds at the position of 2 mm from the package
ELECTRO-OPTICAL CHARACTERISTICS
( T a = ℃2 )5
I t e m
S y m b o l
C o n d i t i o n s
M i n . T y p .
M a x .
U n i t .
C
E O
Collecor dark current
Light current
Light current ratio
C
E
O
V
V
=
1 0 V
0 . 5
1 1 5
1 . 2
μA
μA
─
μs e c .
μs e c .
n m
I
*
V
2
C
E
C
E
L
1
= 5V, E
4 0
0 . 8
I
C
I
E
L
2C
E
L
1
/ I
C
V
C
C
Rise time
Fall time
= 10V, I = 5 m A ,
8
9
t r
t f
λ
λ p
Δ θ
Switching speeds
L
R = 1 0Ω0
Spectral sensitivity
Peak wavelength
Half angle
1 0 %
4 0 0 1 1 0 0
8 0 0
± 6 0
n m
d e g .
CEL
*2. I of PTr1
*3. Setup Iuminous intensity by standard devices.
- 1-