Photo transistors
KODENSHI
ST-1KA銉籗T-1KB
DIMENSIONS
The ST-1KA and 1KB are high-sensitivity NPN
silicon phototransistors mounted in durable,
hermetically sealed TO-18 metal cans, which
provide years of reliable performance, even
under demanding conditions such as use out-
doors.
(Unit : mm)
FEATURES
鈥ide angular response
鈥urable
鈥igh reliability in demanding environments
鈥wo leads (Collector, Emitter) ST-1KA
鈥hree leads (Collector Emitter, Base) ST-1KB
APPLICATIONS
鈥ptical counters
鈥ptical detectors
鈥nfrared sensors
鈥iber optic communications
ST-1KA
ST-1KB
MAXIMUM RATINGS
Item
C-E voltage
E-C voltage
Collector current
Collector power dissipation
Operating temp.
Storage Temp.
Soldering temp.
*1
(Ta=25鈩?
Symbol
V
V
ECO
I
C
P
C
Topr.
Tstg.
Tsol.
CEO
Rating
40
4
50
150
-30~+100
-50~+150
260
Unit
V
V
mA
mW
鈩?/div>
鈩?/div>
鈩?/div>
*1.For MAX.5 seconds at the position of 2 mm from the package
ELECTRO-OPTICAL CHARACTERISTICS
Item
Collector dark current
Light current
C-E saturation voltage
Rise time
Switching speeds Fall time
Spectral sensitivity
Peak wavelength
Half anglee
(Ta=25鈩?
Symbol
I
CEO
I
L
V
CE
(sat)
tr
tf
位
位p
鈻澄?/div>
Conditions
V
CEO
=10V
V
CE
=10V, 200lx
*2
I
C
=2mA, 2,000lx
*2
V
CC
=10V, I
C
=5mA,
R
L
=100惟
Min.
0.5
Typ.
1
2.0
0.2
0.8
10
500~1,050
880
鹵50
Max.
200
5.0
0.4
Unit.
nA
mA
V
渭 ec.
s
渭 ec.
s
nm
nm
deg.
*2. Color temp.=2856K standard Tungsten lamp
- 1-
1
2
