QT QED121

QED121/122/123
PLASTIC INFRARED LIGHT EMITTING DIODE
PACKAGE DIMENSIONS
0.195 (4.95)
FEATURES
• != 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
50
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 = 100 mA
Emission Angle
IF = 100 mA
Forward Voltage
Reverse Current
!PE
—
880
—
nm
"
—
±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
20
—
40
mW/sr
Radiant Intensity QED122
IF = 100 mA, tp = 20 ms
IE
50
—
100
mW/sr
Radiant Intensity QED123
IF = 100 mA, tp = 20 ms
IE
80
—
—
mW/sr
tr
—
800
—
ns
tf
—
800
—
ns
Rise Time
Fall Time
1 of 2
IF = 100 mA
MAX
UNITS
100021B
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 #
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 = 50 mA
IF = 100 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
! (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
2 of 2
80
60
40
20
0
20
40
60
80
100
100021B