FAIRCHILD QED122

QED121/122/123
PLASTIC INFRARED
LIGHT EMITTING DIODE
PACKAGE DIMENSIONS
0.195 (4.95)
FEATURES
• D= 880 nm
REFERENCE
SURFACE
• Chip material = AlGaAs
0.305 (7.75)
• Package type: T-1 3/4 (5mm lens diameter)
• Matched Photosensor: QSD122/123/124
• Narrow Emission Angle, 18°
0.040 (1.02)
NOM
• High Output Power
0.800 (20.3)
MIN
• Package material and color: Clear, peach tinted, plastic
0.050 (1.25)
CATHODE
0.100 (2.54)
NOM
1. Derate power dissipation linearly 2.67
mW/°C above 25°C.
2. RMA flux is recommended.
3. Methanol or isopropyl alcohols are
recommended as cleaning agents.
4. Soldering iron 1/16” (1.6mm) minimum
from housing.
0.240 (6.10)
0.215 (5.45)
NOTES:
0.020 (0.51)
SQ. (2X)
SCHEMATIC
ANODE
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ± .010 (.25) on all non-nominal dimensions
unless otherwise specified.
ABSOLUTE MAXIMUM RATINGS
CATHODE
(TA = 25°C unless otherwise specified)
Parameter
Symbol
Rating
Unit
Operating Temperature
TOPR
-40 to +100
°C
Storage Temperature
TSTG
-40 to +100
°C
(Iron)(2,3,4)
Soldering Temperature
TSOL-I
240 for 5 sec
°C
Soldering Temperature (Flow)(2,3)
TSOL-F
260 for 10 sec
°C
Continuous Forward Current
IF
100
mA
Reverse Voltage
VR
5
V
PD
200
mW
Power
Dissipation(1)
ELECTRICAL / OPTICAL CHARACTERISTICS
PARAMETER
(TA =25°C)
TEST CONDITIONS
SYMBOL
MIN
TYP
Peak Emission Wavelength
IF = 20 mA
Emission Angle
IF = 100 mA
Forward Voltage
Reverse Current
DPE
—
880
—
nm
0
—
±9
—
Deg.
IF = 100 mA, tp = 20 ms
VF
—
—
1.7
V
VR = 5 V
IR
—
—
10
µA
Radiant Intensity QED121
IF = 100 mA, tp = 20 ms
IE
16
—
40
mW/sr
Radiant Intensity QED122
IF = 100 mA, tp = 20 ms
IE
32
—
100
mW/sr
Radiant Intensity QED123
IF = 100 mA, tp = 20 ms
IE
50
—
—
mW/sr
tr
—
800
—
ns
tf
—
800
—
ns
Rise Time
Fall Time
IF = 100 mA
 2001 Fairchild Semiconductor Corporation
DS300336
4/19/01
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MAX
UNITS
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QED121/122/123
PLASTIC INFRARED
LIGHT EMITTING DIODE
TYPICAL PERFORMANCE CURVES
NORMALIZED COLLECTOR CURRENT
NORMALIZED RADIANT INTENSITY
10
Normalized to:
IF= 100 mA, TA = 25˚C
Pulse Width = 100 µs
1
0.1
0.01
0.001
1
10
100
1
Normalized to:
Pulse Width = 100 µs
Duty Cycle = 0.1%
VCC = 5 V
RL = 100 1
TA = 25˚C
IF = 100 mA
0.8
0.6
IF = 20 mA
0.4
0.2
0
1000
0
1
IF - INPUT CURRENT (mA)
2
3
4
5
6
LENS TIP SEPERATION (INCHES)
Fig. 1 Normalized Radiant Intensity vs. Input Current
Fig. 2 Coupling Characteristics of QED12X and QSD12X
NORMALIZED RADIANT INTENSITY
1.0
VF - FORWARD VOLTAGE (V)
2.5
IF = 100 mA
IF = 50 mA
2
1.5
1
IF = 10 mA
0.5
IF = 20 mA
Pulse Width = 100 µs
Duty Cycle = 0.1%
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
775
90 100
800
825
850
TA - TEMPERATURE (˚C)
875
900
925
950
D (nm)
Fig. 3 Forward Voltage vs. Temperature
Fig. 4 Normalized Radiant Intensity vs. Wavelength
Fig. 5 Radiation Pattern
20
10
0˚
-10
-20
30
-30
40
-40
50
-50
60
-60
70
-70
80
-80
90
-90
100
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80
60
40
20
0
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20
40
60
80
100
4/19/01
DS300336
QED121/122/123
PLASTIC INFRARED
LIGHT EMITTING DIODE
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE
TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD 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 PATENT RIGHTS, NOR THE
RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. 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.
DS300336
4/19/01
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 affect its safety or
effectiveness.
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