ROHM SIR-568ST3F Technical data
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
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