SIR-568ST3F
Sensors
Infrared light emitting diode, top view type
SIR-568ST3F
The SIR-568ST3F has the response speed and luminous output necessary for image transmission in audio-visual
applications. It can support almost al l types of optical tran smission through air , including audio and data transmission. The
luminous output is 13mW and the cutoff frequency is 50MHz.
zApplications
Transmission of images from a video cassette recorder
to a television.
Transmission o f audio signals betw een audio devi ces.
High speed data transmission.
zFeatures
1) High luminous output 13mW.
2) Fast response is possible 50MHz cutoff frequency.
zAbsolute maximum ratings (Ta = 25°C)
Parameter Symbol
Forward current
Reverse voltage
Power dissipation
Pulse forward current
Operating temperature
Storage temperature
Pulse width = 0.1 msec, duty ratio 1%
∗
I
F
V
P
I
FP
Topr
Tstg
R
D
∗
Rev.A 1/3
zDimensions (Unit : mm)
φ5.0±0.2
4−0.6
2− 0.5
1
Limits
100
4.0
230
0.5
−25 to +85
−40 to +85
Unit
mA
mW
°C
°C
Notes:
1. Unspecified tolerance
±
0.2 .
shall be
2. Dimension in parenthesis are
show for reference.
8.7±0.3
1
Max.1
Min.24
2.5±1
2
(2.5)
φ6±0.3
1
Anode
2
Cathode
V
A
SIR-568ST3F
Sensors
zElectrical and optical characteristics (Ta = 25°C)
Parameter Symbol
Optical output
Emitting strength
Forward voltage
Reverse current
Peak light emitting wavelength
Spectral line half width
Half-viewing angle
Response time
Rise time
Fall time
Cut-off frequency
O
P
I
E
V
F
I
R
λ
P
∆λ
θ
1/2
tr −−I
tf −
fc −−I
zElectrical and optical characteristic curves
120
100
(mA)
F
80
60
40
20
FORWARD CURRENT : I
0
−25 0 20 40 60 80 100
AMBINET TEMPERATURE : Ta (°C)
Fig.1 Forward current falloff
50
(mA)
40
30
20
10
FORWARD CURRENT : IF
Fig.2 Forward current vs. forward voltage
500
Ta=25°C
tw=100µsec
T=10msec
100
(mW / sr)
E
(%)
E
300
100
Min.
Typ. Max.
13
−
38
18
1.6
−
−
−
850
−
40
−
±13
−
8.0
6.0 − I
50
0
0.2
0.40 0.6 0.8 1.0 1.2 1.4 2.01.6 1.8
FORWARD VOLTAGE : VF
2.1
10
Unit
mW I
V
µA
nm
nm
deg
ns
ns
MHz
0°C
25°C
50°C
75°C
F
=50mA
I
F
=50mA
F
I
=50mA
V
R
=2V
I
F
=20mA
I
F
=20mA
F
I
=50mA
F
=50mA
F
=50mA
F
=30mA DC+20mA p-p
1.0
0.5
RELATIVE OPTICAL OUTPUT : Po (%)
−
mW/sr
−
−
−
−
−25°C
(V)
−2
Conditions
Ta=25°C
I
F
=20mA
0
780 840 900
OPTICAL WAVELENGTH : λ (
nm)
Fig.3 Wavelength characteristics
0
10
EMITTING STRENGTH : I
1
10 100 1000
FORWARD CURRENT (mA)
Fig.4 Emitting strength vs.
forward current
50
RELATIVE EMITTING STRENGTH : I
10
0−25 25 50 75 100
AMBINET TEMPERATURE : Ta (°C)
Fig.5 Relative emitting strength vs.
ambient temperature
−4
GAIN : (dB)
−6
1 2 4 10 20 40 100
FREQUENCY : f (MHz)
Fig.6 Frequency characteristics
Rev.A 2/3
SIR-568ST3F
Sensors
70°
60°
50°
40°
30°
20°
10°
100
80
60
40
80°
90°
RELATIVE EMITTING STRENGTH (%)
10°0°0°100 80 60 40 20 20° 30° 40° 50° 60° 70° 80° 90°
ANGULAR DISPLACEMENT : θ (
Fig.7 Directional pattern
20
RELATIVE EMITTING STRENGTH (%)
0
deg)
Rev.A 3/3
Appendix
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
Notes
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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