FEATURES
= 940 nm
Chip material =GaAs with AlGaAs window
Package type: T-1 3/4 (5mm lens diameter)
Matched Photosensor: QSD122/123/124
Medium Emission Angle, 40
High Output Power
Package material and color: Clear, untinted, plastic
Ideal for remote control applications
ANODE
CATHODE
SCHEMATIC
0.195 (4.95)
0.040 (1.02)
NOM
0.100 (2.54)
NOM
0.050 (1.25)
0.800 (20.3)
MIN
0.305 (7.75)
0.240 (6.10)
0.215 (5.45)
0.020 (0.51)
SQ. (2X)
REFERENCE
SURFACE
CATHODE
QED233
QED234
2001 Fairchild Semiconductor Corporation
DS300338
10/31/01
1 OF 4
www.fairchildsemi.com
NOTES:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of .010 (.25) on all non-nominal dimensions
unless otherwise specified.
DESCRIPTION
The QED233 / QED234 is a 940 nm GaAs / AlGaAs LED encapsulated in a clear untinted, plastic T-1 3/4 package.
PLASTIC INFRARED
LIGHT EMITTING DIODE
PACKAGE DIMENSIONS
1. Derate power dissipation linearly 2.67 mW/C above 25C.
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.
5. Pulse conditions; tp = 100 s, T = 10 ms.
PARAMETER
TEST CONDITIONS
DEVICE
SYMBOL
MIN
TYP
MAX
UNITS
Peak Emission Wavelength
I
F
= 20 mA
ALL
PE
--
940
--
nm
Spectral Bandwidth
I
F
= 20 mA
ALL
--
50
--
nm
Temp. Coefficient of
PE
I
F
= 100 mA
ALL
TC
--
0.2
--
nm/K
Emission Angle
I
F
= 100 mA
ALL
2
1/2
--
40
--
Deg.
Forward Voltage
I
F
= 100 mA, tp = 20 ms
ALL
V
F
--
--
1.6
V
Temp. Coefficient of V
F
I
F
= 100 mA
ALL
TC
V
--
-1.5
--
mV/K
Reverse Current
V
R
= 5 V
ALL
I
R
--
--
10
A
Radiant Intensity
I
F
= 100 mA, tp = 20 ms
QED233
I
E
10
--
50
mW/sr
QED234
27
--
--
Temp. Coefficient of I
E
I
F
= 20 mA
ALL
TC
I
--
-0.6
--
%/K
Rise Time
I
F
= 100 mA
ALL
t
r
--
1000
--
ns
Fall Time
ALL
t
f
--
1000
--
ELECTRICAL / OPTICAL CHARACTERISTICS
(T
A
=25C)
Parameter
Symbol
Rating
Unit
Operating Temperature
T
OPR
-40 to +100
C
Storage Temperature
T
STG
-40 to +100
C
Soldering Temperature (Iron)
(2,3,4)
T
SOL-I
240 for 5 sec
C
Soldering Temperature (Flow)
(2,3)
T
SOL-F
260 for 10 sec
C
Continuous Forward Current
I
F
100
mA
Reverse Voltage
V
R
5
V
Power Dissipation
(1)
P
D
200
mW
Peak Forward Current
I
FP
1.5
A
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25C unless otherwise specified)
QED233
QED234
PLASTIC INFRARED
LIGHT EMITTING DIODE
www.fairchildsemi.com
2 OF 4
10/31/01 DS300338
TYPICAL PERFORMANCE CURVES TBD
QED233
QED234
PLASTIC INFRARED
LIGHT EMITTING DIODE
Fig. 2 Forward Voltage Vs. Ambient Temperature
Fig. 1 Normalized Radiant Intensity vs. Forward Current
T
A
- AMBIENT TEMPERATURE ( C)
I
F
- FORWARD CURRENT (mA)
V
F
- FOR
W
ARD
V
O
L
T
A
GE (V)
I
e
- NORMALIZED RADIANT INTENSITY
-40
-20
0
20
40
60
80
100
0.0
0.5
1.0
1.5
2.0
I
F
=100mA
I
F
=10mA
I
F
= 50mA
I
F
=20mA
I
F
Pulsed
t
pw
= 100 s
Duty Cycle = 0.1%
Fig. 4 Radiation Diagram
Fig. 3 Normalized Radiant Intensity vs. Wavelength
NORMALIZED INTENSITY
(nm)
800
850
900
950
1000
1050
0
0.2
0.4
0.6
0.8
1.0
1000 1500
100
10
1
0.01
0.1
1
10
I
F
-
FOR
W
ARD CURRENT (mA)
Fig. 5 Forward Current vs. Forward Voltage
V
F
- FORWARD VOLTAGE (V)
1
2
3
4
1
10
100
1000
T
A
= 25C
Normalized to:
I
F
= 100 mA
T
A
= 25C
t
pw
= 100 s
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.2
0.4
0.6
0.8
1.0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
DS300338
10/31/01
3 OF 4
www.fairchildsemi.com
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.
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.
www.fairchildsemi.com
4 OF 4
10/31/01 DS300338
QED233
QED234
PLASTIC INFRARED
LIGHT EMITTING DIODE
PDF 
ZIP