168 EE-SF5(-B) Photomicrosensor (Reflective)
Photomicrosensor (Reflective)
EE-SF5(-B)
■Dimensions
Note: All units are in millimeters unless otherwise indicated.
■Features
•Dust-tight construction.
•With a visible-light intercepting filter which allows objects to be
sensed without being greatly influenced by the light radiated from
fluorescent lamps.
•Mounted with M2 screws.
•Model with soldering terminals (EE-SF5).
•Model with PCB terminals (EE-SF5-B).
■Absolute Maximum Ratings (Ta = 25°C)
Note: 1. Refer to the temperature rating chart if the ambient temper-
ature exceeds 25°C.
2. The pulse width is 10 μs maximum with a frequency of
100 Hz.
3. Complete soldering within 10 seconds.
■Electrical and Optical Characteristics (Ta = 25°C)
Note: The letter “d” indicates the distance between the top surface of the sensor and the sensing object.
Internal Circuit
Terminal No. Name
A Anode
K Cathode
C Collector
E Emitter
Dimensions Tolerance
3 mm max. ±0.3
3 < mm ≤ 6 ±0.375
6 < mm ≤ 10 ±0.45
10 < mm ≤ 18 ±0.55
18 < mm ≤ 30 ±0.65
A
K
C
E
Matted
1.9 dia. 2.2±0.2 dia. hole
Four, 0.25
Four,
0.5
Four,
1.5
EE-SF5 EE-SF5-B
2.54±0.2
2.54
7.62±0.3
7.6±1
Unless otherwise specified, the
tolerances are as shown below.
Item Symbol Rated value
Emitter Forward current IF50 mA
(see note 1)
Pulse forward cur-
rent
IFP 1 A
(see note 2)
Reverse voltage VR4 V
Detector Collector–Emitter
voltage
VCEO 30 V
Emitter–Collector
voltage
VECO ---
Collector current IC20 mA
Collector dissipa-
tion
PC100 mW
(see note 1)
Ambient tem-
perature
Operating Topr –25°C to 80°C
Storage Tstg –30°C to 80°C
Soldering temperature Tsol 260°C
(see note 3)
Item Symbol Value Condition
Emitter Forward voltage VF1.2 V typ., 1.5 V max. IF = 30 mA
Reverse current IR0.01 μA typ., 10 μA max. VR = 4 V
Peak emission wavelength λP940 nm typ. IF = 20 mA
Detector Light current IL200 μA min., 2,000 μA max. IF = 20 mA, VCE = 10 V
White paper with a reflection ratio of
90%, d = 5 mm (see note)
Dark current ID2 nA typ., 200 nA max. VCE = 10 V, 0 lx
Leakage current ILEAK 2 μA max. IF = 20 mA, VCE = 10 V with no reflec-
tion
Collector–Emitter saturated volt-
age
VCE (sat) --- ---
Peak spectral sensitivity wave-
length
λP850 nm typ. VCE = 10 V
Rising time tr 30 μs typ. VCC = 5 V, RL = 1 kΩ, IL = 1 mA
Falling time tf 30 μs typ. VCC = 5 V, RL = 1 kΩ, IL = 1 mA
Be sure to read Precautions on page 25.
EE-SF5(-B) Photomicrosensor (Reflective) 169
■Engineering Data
Sensing
object
Forward Current vs. Collector
Dissipation Temperature Rating
Light Current vs. Forward Current
Characteristics (Typical)
Light Current vs. Collector−Emitter
Voltage Characteristics (Typical)
Relative Light Current vs.
Ambient Temperature
Characteristics (Typical)
Dark Current vs. Ambient
Temperature Characteristics
(Typical)
Response Time vs. Load
Resistance Characteristics
(Typical)
Sensing Distance Characteristics
(Typical)
Response Time Measurement
Circuit
Sensing Angle Characteristics
(Typical)
Input
Output
Input
Output
90 %
10 %
Distance d (mm)
Sensing Position Characteristics
(Typical)
Sensing Position Characteristics
(Typical)
Sensing Angle Characteristics
(Typical)
Sensing object:
White paper with a
reflection factor of
90%
Ta = 25°C
V
CE
= 10 V
d = 5 mm
Sensing object: White paper
with a reflection factor of 90%
d1 =
5 mm
Phototransistor side
LED side
(a) : d
1
= 3 mm
(b) : d
1
= 5 mm
d1
d = 5 mm
Distance d2 (mm)
Angle deviation θ (°)
V
CE
= 10 V
0lx
I
F
= 20 mA
V
CE
= 5 V
V
CC
= 5 V
Ta = 25°C
Relative light current IL (%)
Sensing object:
White paper with
a reflection factor
of 90%
I
F
= 20 mA
I
F
= 10 mA
I
F
= 30 mA
I
F
= 40 mA
Ta = 25°C
V
CE
= 10 V
Sensing object: White paper
with a reflection factor of 90%
Ta = 25°C
IF = 20 mA
V
CE
= 10 V
I
F
= 20 mA
V
CE
= 5 V
Ta = 25°C
Light current IL (μA)
Load resistance RL (kΩ)
Dark Current ID (nA)
Ambient temperature Ta (°C)
Forward current IF (mA)
Forward current IF (mA) Collector−Emitter voltage VCE (V)
Light current IL (μA)
Ambient temperature Ta (°C) Ambient temperature Ta (°C)
Response time tr, tf (μs)
Relative light current IL (%)
Relative light current IL (%) Light current IL (mA)
Relative light current IL (%)
Distance d2 (mm)
d = 5 mm
Ta = 25°C
Sensing object: White
paper with a reflection
factor of 90%
I
F
= 20 mA
V
CE
= 5 V
Ta = 25°C
d
1
= 5 mm
Sensing
object: White
paper with a
reflection
factor of 90%
Angle deviation θ (°)
Relative light current IL (%)
d = 5 mm
Sensing object: White paper
with a reflection factor of 90%
Ta = 25°C
IF = 20 mA
V
CE
= 10 V
Collector dissipation PC (mW)
