LED55BF LED55CF LED56F
GaAs INFRARED EMITTING DIODE
PACKAGE DIMENSIONS
0.209 (5.31)
0.184 (4.67)
0.030 (0.76)
NOM
0.155 (3.94)
MAX
1.00 (25.4)
MIN
ANODE
(CASE)
0.100 (2.54)
0.050 (1.27)
SCHEMATIC
3
0.040 (1.02)
0.040 (1.02)
45°
1
3
Ø0.020 (0.51) 2X
ANODE
(Connected
To Case)
CATHODE
1
NOTES:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ± .010 (.25) on all non-nominal dimensions
unless otherwise specified.
DESCRIPTION
FEATURES
The LED55BF/LED55CF/LED56F series are 940nm LEDs in a wide angle,
TO-46
package.
• Good optical to mechanical alignment
• Mechanically and wavelength matched to the
TO-18
series phototransistor
• Hermetically sealed package
• High irradiance level
• RoHS compliant
Light in Motion LLC
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LED55BF LED 55CF LED56F
GaAs INFRARED EMITTING DIODE
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating Temperature
Storage Temperature
Soldering Temperature (Iron)
(3,4,5 and 6)
Soldering Temperature (Flow)
(3,4 and 6)
Continuous Forward Current
Forward Current (pw, 1µs; 200Hz)
Reverse Voltage
Power Dissipation (T
A
= 25°C)
(1)
Power Dissipation (T
C
= 25°C)
(2)
(T
A
= 25°C unless otherwise specified)
Symbol
T
OPR
T
STG
T
SOL-I
T
SOL-F
I
F
I
F
V
R
P
D
P
D
Rating
-65 to +125
-65 to +150
240 for 5 sec
260 for 10 sec
100
10
3
170
1.3
Unit
°C
°C
°C
°C
mA
A
V
mW
W
NOTE:
1. Derate power dissipation linearly 1.70 mW/°C above 25°C ambient.
2. Derate power dissipation linearly 13.0 mW/°C above 25°C case.
3. RMA flux is recommended.
4. Methanol or isopropyl alcohols are recommended as cleaning agents.
5. Soldering iron tip
1/16”
(1.6mm) minimum from housing.
6. As long as leads are not under any stress or spring tension
7. Total power output, P
O
, is the total power radiated by the device into a solid angle of 2
!
steradians.
ELECTRICAL / OPTICAL CHARACTERISTICS
PARAMETER
(T
A
=25°C) (All measurements made under pulse conditions)
SYMBOL
MIN
Peak Emission Wavelength
Emission Angle at 1/2 Power
Forward Voltage
Reverse Leakage Current
Total Power LED55BF
(7)
Total Power LED55CF
(7)
Total Power LED56F
(7)
Rise Time 0-90% of output
Fall Time 100-10% of output
TEST CONDITIONS
I
F
= 100 mA
I
F
= 100 mA
V
R
= 3 V
I
F
= 100 mA
I
F
= 100 mA
I
F
= 100 mA
"
PE
#
V
F
I
R
P
O
P
O
P
O
t
r
t
f
—
—
—
—
3.5
5.4
1.5
—
—
TYP
940
±40
—
—
—
—
—
1.0
1.0
MAX
—
—
1.7
10
—
—
—
—
—
UNITS
nm
Deg.
V
µA
mW
mW
mW
µs
µs
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LED55BF LED55CF LED56F
GaAs INFRARED EMITTING DIODE
TYPICAL PERFORMANCE CURVES
Figure 1. Power Output vs. Input Current
100
50
20
10
P
O
, NORMALIZED POWER OUTPUT
5
2
1.0
0.5
0.2
0.1
0.05
0.02
0.01
.001
.002
.005
.01
.02
.05
0.1
0.2
0.5
1.0
2
5
10
NORMALIZED TO
I
F
= 100 mA
T
A
= 25°C
PULSED
P
W
= 80
µsec
FORWARD
CURRENT
CONTINUOUS
FORWARD
CURRENT
I
F
, FORWARD CURRENT (A)
Figure 3. Forward Voltage vs. Forward Current
Figure 2. Power Output vs. Temperature
1.4
1.2
P
O
, NORMALIZED POWER OUTPUT
2.0
1.0
0.8
0.6
0.4
0.2
0
NORMALIZED TO
I
F
= 100 mA
T
A
= 25°C
I
F
, FORWARD CURRENT (A)
0
25
50
75
100
125
150
.01
T
A
, AMBIENT TEMPERATURE (°C)
0
1
2
3
4
5
6
7
8
9
10
1.0
0.8
0.6
0.4
0.2
0.1
.08
.06
.04
.02
-50
-25
10
8.0
6.0
4.0
V
F
, FORWARD VOLTAGE (V)
Figure 4. Forward Voltage vs. Forward Current
100
80
60
40
I
F
, FORWARD CURRENT (mA)
20
T
A
= 100°C
10
8
6
4
25°C
-55°C
RELATIVE OUTPUT (%)
100
Figure 5. Typical Radiation Pattern
80
60
40
2
1
20
.9
1.0
1.1
1.2
1.3
1.4
1.5
0
-80
-60
-40
-20
0
20
40
60
80
θ
- ANGULAR DISPLACEMENT FROM OPTICAL AXIS (DEGREES)
V
F
, FORWARD VOLTAGE (V)
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LED55BF LED55CF LED56F
GaAs INFRARED EMITTING DIODE
DISCLAIMER
LIGHT IN MOTION LLC RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. LIGHT IN MOTION DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT
DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS P ATENT RIGHTS, NOR THE
RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
LIGHT IN MOTION LLC’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROV AL OF THE PRESIDENT OF
LIGHT IN MOTION LLC. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical
implant into the body,or (b) support or sustain life,
and (c) whose failure to perform when properly
used in accordance with instructions for use provided
in labeling, can be reasonably expected to result in a
significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life
support device or system, or to af fect its safety or
effectiveness.
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