Rainbow Electronics SIR-568ST3F User Manual
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 all types of optical transmission through air, including audio and data transmission. The
luminous output is 13mW and the cutoff frequency is 50MHz.
!!!!Applications
Transmission of images from a video cassette recorder
to a television.
Transmission of audio signals between audio devices.
High speed data transmission.
!!!!Features
1) High luminous output 13mW.
2) Fast response is possible 50MHz cutoff frequency.
!!!!Absolute 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
∗
!!!!External dimensions (Units : mm)
φ5.0±0.2
1
4−0.6
Max.1
2− 0.5
2.5±1
2
1
(2.5)
φ6±0.3
Limits
100
4.0
230
1.0
−25∼+85
−40∼+85
Unit
mA
V
mW
A
°C
°C
Notes:
1. Unspecified tolerance
shall be
±
0.2 .
2. Dimension in parenthesis are
show for reference.
8.7±0.3
Min.24
1
Anode
2
Cathode
1/3
Sensors
!!!!Electrical 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
!!!!
Electrical 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
O
P
I
E
V
F
I
R
λ
P
∆λ
θ
1/2
tr −−I
tf −
fc −−I
50
(mA)
F
40
30
20
10
FORWARD CURRENT : I
0
0.2
Fig.2 Forward current vs. forward voltage
Min.
Typ. Max.
13
18
−
38
1.6
−
−
850
−
40
−
±13
−
−
−
2.1
−
10
−
−
−
8.0
6.0 − I
50
0.40 0.6 0.8 1.0 1.2 1.4 2.01.6 1.8
FORWARD VOLTAGE : V
F
(V)
Unit
mW I
mW/sr
V
µA
nm
nm
deg
ns
ns
MHz
−25°C
0°C
25°C
50°C
75°C
SIR-568ST3F
Conditions
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 (%)
0
780 840 900
OPTICAL WAVELENGTH : λ (
Fig.3 Wavelength characteristics
Ta=25°C
F
=20mA
I
nm)
500
Ta=25°C
tw=100µsec
T=10msec
mW / sr)
100
(
E
10
EMITTING STRENGTH : I
1
10 100 1000
FORWARD CURRENT (
Fig.4 Emitting strength vs.
forward current
mA)
(%)
E
300
100
50
RELATIVE EMITTING STRENGTH : I
10
AMBINET TEMPERATURE : Ta (°C)
Fig.5 Relative emitting strength vs.
ambient temperature
0−25 25 50 75 100
0
−2
−4
GAIN : (dB)
−6
1 2 4 10 20 40 100
FREQUENCY : f (MHz)
Fig.6 Frequency characteristics
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