KODENSHI SG-257

Photointerrupters(Transmissive)
KODENSHI
SG-257
DIMENSIONS
(Unit : mm)
The SG–257 photointerrupter high– performance
standard type,combines high–output GaAs IRED with
high sensitive phototransistor.
FEATURES
•PWB direct mount type
•GAP :3.0mm
•Snap–in mount
•Horizontal slit
•Convenient for vertical lever operation
APPLICATIONS
•Mouses
•Rotary encoders
•Facsimiles
•Scanners
MAXIMUM RATINGS
Item
Power dissipation
Forward current
Input
Reverse voltage
Pulse forward current *1
Collector power dissipation
Collector current
Output
C-E voltage
E-C voltage
Operating temp.*2
Storage temp.*2
Soldering temp.*3
(Ta=25℃)
Symbol
Rating
Unit
PD
IF
VR
IFP
PC
IC
VCEO
VECO
Topr.
Tstg.
Tsol.
75
50
5
1
75
20
30
5
-20~+85
-30~+85
260
mW
mA
V
A
mW
mA
V
V
℃
℃
℃
*1. pulse width :tw≦100 μ
sec.period :T=10msec.
*2. No icebound or dew
*3. For MAX.5 seconds at the position of 1mm from the package
ELECTRO-OPTICAL CHARACTERISTICS
Item
Forward voltage
Reverse current
Peak wavelength
Output
Collector dark current
Light current
TransmissioLeakage
n
current
C-E saturation voltage
Rise time
Fall time
Input
Symbol
VF
IR
λp
ICEO
Ic
ICEOD
VCE(sat)
tr
tf
(Ta=25℃)
Conditions
IF =20mA
VR=5V
IF =20mA
VCE=10V
( on–shading)
IF=20mA, VCE=5V,N
IF=20mA, VCE=5V(,shading)
IF=20mA, IC=0.3mA
VCC=5V, IC=2mA,RL=100Ω
- 1-
Min.
Typ.
1.2
940
1
0.7
0.5
0.15
4
5
Max.
Unit.
1.4
10
V
μA
nm
nA
mA
μA
V
μsec.
μsec.
100
14
10
0.4
Photointerrupters(Transmissive)
SG-257
Collector power dissipation Vs.
Ambient temperature
Light current Vs.
Collector-Emitter voltage
Switching time Vs.
Load resistance
Forward current Vs.
Forward voltage
Light current Vs.
Forward current
Relative light current Vs.
Ambient temperature
Dark current Vs.
Ambient temperature
Relative light current Vs.
Moving distance
- 2-