Photo transistors
K O D E N S H I
S T - 1 ·K SAT - 1 K B
DIMENSIONS
(Unit : mm)
The ST- 1KA and 1KB are high- sensitivity NPN
s ilic on phototra ns is tors m ounte d in dura ble ,
hermetically s ealed TO- 18 metal cans , which
provide ye a rs of re lia ble pe rform a nc e , e ve n
under demanding conditions such as use out-
d o o r s .
FEATURES
• Wide angular response
• D u r a b l e
• High reliability in demanding environments
• Two leads (Collector, Emitter) ST- 1KA
• Three leads (Collector Emitter, Base) ST- 1KB
APPLICATIONS
• Optical counters
• Optical detectors
• Infrared sensors
• Fiber optic communications
ST-1KA
ST-1KB
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
4 0
V
E
V
C
O
E- C voltage
4
V
C
Collector current
I
5 0
m A
m W
℃
C
Collector power dissipation
Operating temp.
P
1 5 0
T o p r .
T s t g .
T s o l .
-
-
3 0 ~ + 1 0 0
5 0 ~ + 1 5 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
C
E O
Collector dark current
Light current
C- E saturation voltage
V
=
1 0 V
1
2 0 0
5 . 0
0 . 4
n A
m A
V
μs e c .
μs e c .
n m
I
*
2
C
E
L
V
= 10V, 200lx
I = 2mA, 2,000lx
0 . 5
2 . 0
0 . 2
0 . 8
1 0
5 0 0 ~ 1 , 0 5 0
8 8 0
I
*
2
C
C
V
E
( s a t )
C
V
C
C
Rise time
Fall time
= 10V, I = 5 m A ,
t r
t f
λ
λ p
θ
Switching speeds
L
R = 1 0Ω0
Spectral sensitivity
Peak wavelength
Half anglee
n m
d e g .
± 5 0
*2. Color temp.= 2856K standard Tungsten lamp
- 1-