EE-SY169/169A
Phototransistor Output with
Convergent Lens for Precise
Sensing
Sensing accuracy as high as
±0.6
mm
Model with a red LED assures smooth
sensing of dyestuffs (EE-SY169)
Ideal to be built into printers and copy
machines for sensing paper edges
Ordering Information
Appearance
Sensing method
Reflective,
convergent lens
Sensing
distance
4 mm
Sensing object
White paper with
reflection factor
of 90%
Output
configuration
Phototransistor
Weight
Approx.
1.0 g
Part number
EE-SY169
Red LED
EE-SY169A
IR LED
Specifications
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°C (77°F))
Item
Input
Forward current
Pulse forward current
Reverse voltage
Output
Collector-emitter voltage
Collector current
Collector dissipation
Ambient temperature
Operating
Storage
Symbol
I
F
I
FP
V
R
V
CEO
I
C
P
C
Topr
Tstg
Rated value
EE-SY169
40 mA*
300 mA**
3V
30 V
20 mA
100 mW
0°C to 70°C**
(32°F to 158°F)
-20°C to 80°C
(-4°F to 176°F)
EE-SY169A
50 mA*
1 A**
3V
30 V
20 mA
100 mW
0°C to 70°C**
(32°F to 158°F)
-20°C to 80°C
(-4°F to 176°F)
*Refer to Engineering Data if the ambient temperature is not within the normal room temperature range.
**This value was measured with a pulse width of 10
µs
and a repeating frequency of 100 Hz.
EE-SY169/169A
EE-SY169/169A
CHARACTERISTICS (T
A
= 25°C (77°F))
Item
Emitter
Forward voltage
Reverse current
Peak emission wavelength
Receiver
Dark current
Peak spectral sensitivity
wavelength
Combination
Light current
Leakage current
Rising time***
Falling time***
Symbol
y
V
F
I
R
EE-SY169
Value
2.3 V max.
10
µA
max.
660 nm typ.
200 nA max.
850 nm typ.
160 to 2,000
µA
2
µA
max.
30
µs
typ.
30
µs
typ.
Condition
I
F
= 20 mA
V
R
= 3 V
I
F
= 20 mA
V
CE
= 5 V, 0
x
V
CE
= 5 V
I
F
= 20 mA*
V
CE
= 5 V
I
F
= 20 mA**
V
CE
= 5 V
V
CC
= 5 V
R
L
= 1 kΩ
I
L
= 1 mA
EE-SY169A
Value
1.5 V max.
10
µA
max.
920 nm typ.
200 nA max.
850 nm typ.
160 to 2,000
µA
2
µA
max.
30
µs
typ.
30
µs
typ.
Condition
I
F
= 30 mA
V
R
= 4 V
I
F
= 20 mA
V
CE
= 5 V, 0
x
V
CE
= 5 V
I
F
= 20 mA*
V
CE
= 10 V
I
F
= 20 mA**
V
CE
= 10 V
V
CC
= 5 V
R
L
= 1 kΩ
I
L
= 1 mA
λ
p(L)
I
D
λ
p(P)
I
L
I
LEAK
tr
tf
*The sensing object is white paper with a reflection factor of 90% at a sensing distance of 4.0 mm.
**The sensing object reflects no light.
***The following illustrations show the rising time, tr, and the falling time, tf.
Sensing object
Input
0
90%
10%
t
tr
tf
Output
Input
R
L
V
CC
t
Output 0
Engineering Data
Note: The operating conditions of the photomicrosensor must be within the absolute maximum rating ranges.
TEMPERATURE CHARACTERISTICS
EE-SY169
P
c
EE-SY169A
Forward current I
F
(mA)
Collector dissipation P
C
(mW)
P
c
Forward current I
F
(mA)
Collector dissipation P
C
(mW)
I
F
I
F
Ambient temperature T
A
(°C)
Ambient temperature T
A
(°C)
EE-SY169/169A
EE-SY169/169A
INPUT CHARACTERISTICS (TYPICAL)
EE-SY169
EE-SY169A
Forward current I
F
(mA)
Forward current I
F
(mA)
T
A
= --30°C
T
A
= +25°C
T
A
= +70°C
Forward voltage V
F
(V)
Forward voltage V
F
(V)
INPUT/OUTPUT CHARACTERISTICS (TYPICAL)
EE-SY169
EE-SY169A
Light current I
L
(
µ
A)
Light current I
L
(
µ
A)
3.5 mm
4.0 mm
4.5 mm
3.5 mm
4.0 mm
4.5 mm
Sensing distance L (paper with
a reflection factor of 90%)
V
CE
= 5 V
Sensing distance L (paper with
a reflection factor of 90%)
V
CE
= 5 V
Forward current I
F
(mA)
Forward current I
F
(mA)
OUTPUT CHARACTERISTICS (TYPICAL)
EE-SY169
EE-SY169A
Light current I
L
(
µ
A)
Light current I
L
(
µ
A)
Collector-emitter voltage V
CE
(V)
Collector-emitter voltage V
CE
(V)
Sensing distance L (paper with
a reflection factor of 90%)
3.5 mm
4.0 mm
4.5 mm
Sensing distance L (paper with
a reflection factor of 90%)
3.5 mm
4.0 mm
4.5 mm
EE-SY169/169A
EE-SY169/169A
LIGHT CURRENT TEMPERATURE DEPENDENCY (TYPICAL)
EE-SY169
EE-SY169A
Change rate of I
L
(%)
Change rate of I
L
(%)
Ambient temperature T
A
(°C)
Sensing distance L = 4.0 mm (paper
with a reflection factor of 90%)
I
F
= 20 mA
V
CE
= 5 V
Ambient temperature T
A
(°C)
Sensing distance L = 4.0 mm (paper with a
reflection factor of 90%)
I
F
= 20 mA
V
CE
= 5 V
SENSING POSITION CHARACTERISTICS (TYPICAL)
EE-SY169
Relative light current I
L
(%)
EE-SY169A
Relative light current I
L
(%)
Distance d
2
(mm)
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 5 V
Sensing object: White paper
with a reflection factor of 90%
3.5 mm
4.0 mm
4.5 mm
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 5 V
Distance d
2
(mm)
3.5 mm
4.0 mm
4.5 mm
Sensing object: White paper
with a reflection factor of 90%
EE-SY169/169A
EE-SY169
Relative light current I
L
(%)
EE-SY169/169A
EE-SY169A
Relative light current I
L
(%)
Distance d
2
(mm)
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 5 V
Sensing object: White paper
with a reflection factor of 90%
3.5 mm
4.0 mm
4.5 mm
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 5 V
Distance d
2
(mm)
3.5 mm
4.0 mm
4.5 mm
Sensing object: White paper
with a reflection factor of 90%
LEAKAGE CURRENT CHARACTERISTICS (TYPICAL)
EE-SY169
V
CE
= 5 V
EE-SY169A
V
CE
= 5 V
Current leakage I
LEAK
(nA)
Current leakage I
LEAK
(nA)
Forward current I
F
(mA)
Forward current I
F
(mA)
SENSING DISTANCE CHARACTERISTICS (TYPICAL)
EE-SY169
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 10 V
Sensing object:
White paper with a
reflection factor of
90%
EE-SY169A
T
A
= 25
°C
I
F
= 20 mA
V
CE
= 10 V
Sensing object: White
paper with a reflec-
tion factor of 90%
Light current I
L
(
µ
A)
Light current I
L
(
µ
A)
Distance d (mm)
Distance d (mm)
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