NEW PRODUCT
SIT208
Photo Interrupter
Dimensions
The SIT208 is a photointerrupter high-
performance standard type, combines
high-output GaAs IRED with high
sensitive phototransistor.
3rd ANG PROJ
(Unit: mm)
①
Cathode
④
Emitter
Features
·PCB
direct mount type
·GAP:2.0mm
·Ultra
small size
·High
resolution(slit 0.3mm)
A
②
Anode
③
Collector
Section A-A
Application
·
Camera
·
Encoders
·
Digital cameras
·
Digital video cameras
3
A
General Tolerance(±0.2)
Maximum Ratings
Item
Power dissipation
Input
Forward current
Reverse voltage
Pulse forward current
*1
(Ta=25℃）
Symbol Ratings
P
D
I
F
V
R
I
FP
P
C
I
C
V
CEO
V
ECO
*2
*2
*3
Unit
mW
mA
V
A
75
50
5
0.5
Collector power dissipation
Output
Collector current
Collector-Emiter voltage
Emiter-Collector voltage
Operating temperature
Storage tempertature
Soldering tempertature
* 2 No icebound or dew
75
20
30
5
-20½+85
-30½+100
mW
mA
V
V
°
C
°
C
°
C
Topr.
Tstg.
Tsol.
260
* 1 pulse width:tw≤100μs
周期：T=10ms
* 3 For MAX.5 seconds at the position of 1mm from the resin edge
The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this
product, would you please refer to the latest specifications.
Photo Interrupter
SIT208
Elector-Optical Characteristics
Item
Forward voltage
Input
Output
Reverse current
Peak wavelength
Dark current
Light current
Transfer
characte
ristics
Leak current
C-E saturation voltage
Rise time
Fall time
Symbol
V
F
I
R
λ
P
I
CEO
I
CEL
I
F
=20mA
V
R
=5V
I
F
=20mA
V
CE
=10V,E
V
=0lx
Conditions
Min
-
-
-
-
-
-
-
-
Typ
1.2
-
940
1
-
0.5
0.15
10
10
(Ta=25℃)
Max
1.4
10
-
100
1.8
10
0.4
-
-
Unit
V
μA
nm
nA
mA
μA
V
μs
μs
I
F
=20mA,V
CE
=5V,Non-shading 0.25
I
CEOD
I
F
=20mA,V
CE
=5V,Shading
V
CE(sat)
I
F
=10mA,I
C
=0.03mA
tr
tf
I
C
=1mA,V
CC
=5V,R
L
=100Ω
(mW)
Power dissipation V
S
.
Ambient temperature
(mA)
Forward current V
s
.
Forward voltage
Ta=25
℃
(mA )
Light current V
s
.
Forward current
V
CE
=5V
T
a
=25
℃
100
100
Power dissipation P
C
2
Forward current I
F
50
50
Light current I
CEL
(V)
1
0
0
25
50
75
100
125 (
℃
)
0
0
0.5
1.0
1.5
2.0
0
0
10
20
30
40
50 (mA)
Ambient temperature Ta
Forward voltage V
F
Forward current I
F
(mA )
2
Light current V
s
.
Collector-Emitter voltage
Ta=25
℃
(% )
Relative light current V
s
.
Ambient temperature
V
CE
=5V
I
F
=20mA
(nA )
10
2
Dark currrent V
s
.
Ambient temperature
V
CE
=10V
Relative light current I
CEL
Light current I
CEL
I
F
=40mA
Dark current I
CEO
I
F
=50mA
100
10
1
1
I
F
=30mA
10
0
50
I
F
=20mA
10
-1
I
F
=10mA
0
0
2
4
6
8
10
12
(V)
0
-25
0
25
50
75
100
(
℃
)
10
-2
-25
0
25
50
75
100
(
℃
)
Collector-Emitter voltage V
CE
Ambient temperature Ta
Ambient temperature Ta
The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this
product, would you please refer to the latest specifications.
Photo Interrupter
SIT208
Switching time Vs.
Load resistance
※1
I
C
=1
m
A
(
μs
)
3
Relative light current Vs.
※2
Moving distance
(% )
(X)
V
CE
=5V
I
F
=20mA
Ta=25
℃
(% )
(Y)
V
CE
=5V
I
F
=20mA
Ta=25
℃
Relative output current I
CEL
10
Switching time tr,tf
tr
100
100
10
2
10
1
tf
50
50
1
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
(K
Ω
)
Load resistance R
L
-2 -1
0
1
2 (mm)
-2 -1
0
1
2 (mm)
Moving distance(mm)
*1 Switching time measurement circuit
Input
Vcc
Output
R
L
Input
Output
90%
10%
tr
tf
td
td : Delay Time
tr : Rise Time
tf : Fall Time
*2 Method of measuring position detection characteristic
X
Center of slit
Y
Center of slit
-
0
+
The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this
product, would you please refer to the latest specifications.
Photo Interrupter
SIT208
Packing Specification
1.Fixed quantity (max 200pcs) of the products are packed into plastic bag
2.Ten bags of the products are put into #1 box
3.Ten #1 boxes are put into #2 box(max 20000pcs)
4.Two #2 boxes are put into #3 box(max 40000pcs)
5.Packing slit is pasted on #3 box
SIT208 (max 200pcs)
plastic bag *10
#1 box*10
#2
SIT207 (max
#2 box*2
plastic
#3 box(max 12000 pcs) bag *6
#3 box
packing slit
packing slit
The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this
product, would you please refer to the latest specifications.
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