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QED121, QED122, QED123
Plastic Infrared Light Emitting Diode
FeaturesPACKAGE DIMENSIONS
Description
■ λ = 880nm
The QED121, QED122 and QED123 are 880nm
AlGaAs LEDs encapsulated in a clear peach tinted,
plastic T-1 3/4 package.
■ Chip material = AlGaAs
■ Package type: T-1 3/4 (5mm lens diameter)
■ Matched photosensor: QSD122/QSD123/QSD124
■ Narrow emission angle, 16°
■ High output power
■ Package material and color: clear, peach tinted, plastic
Package Dimensions
0.195 (4.95)
REFERENCE
SURFACE
0.305 (7.75)
0.040 (1.02)
NOM
0.800 (20.3)
MIN
CATHODE
0.050
(1.25)
0.100 (2.54)
NOM
0.240 (6.10)
0.215 (5.45)
Schematic
ANODE
CATHODE
0.020 (0.51)
SQ. (2X)
Notes:
1. Dimensions of all drawings are in inches (mm).
2. Tolerance is ±0.010 (0.25) on all non-nominal dimensions
unless otherwise specified.
©2001 Fairchild Semiconductor Corporation
QED121, QED122, QED123 Rev. 1.0.1
www.fairchildsemi.com
QED121, QED122, QED123 — Plastic Infrared Light Emitting Diode
August 2008
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
Parameter
Rating
Units
TOPR
Operating Temperature
-40 to +100
°C
TSTG
Storage Temperature
-40 to +100
°C
TSOL-I
Soldering Temperature (Iron)(2)(3)(4)
240 for 5 sec
°C
260 for 10 sec
°C
100
mA
TSOL-F
IF
Soldering Temperature
(Flow)(2)(3)
Continuous Forward Current
VR
Reverse Voltage
PD
Power Dissipation(1)
5
V
200
mW
Notes:
1. Derate power dissipation linearly 2.67mW/°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.
Electrical / Optical Characteristics (TA = 25°C)
Symbol
Parameter
λPE
Peak Emission Wavelength
TCλ
Temperature Coefficient
Test Conditions
IF = 20mA
2Θ1/2
Emission Angle
IF = 100mA
VF
Forward Voltage
IF = 100mA, tp = 20ms
TCVF
Min.
Typ.
Max.
890
nm
0.2
nm / °C
16
°
1.7
Temperature Coefficient
Units
-6
V
mV / °C
IR
Reverse Current
VR = 5V
10
µA
IE
Radiant Intensity QED121
IF = 100mA, tp = 20ms
16
40
mW/sr
IE
Radiant Intensity QED122
IF = 100mA, tp = 20ms
32
100
mW/sr
IE
Radiant Intensity QED123
IF = 100mA, tp = 20ms
50
TCIE
Temperature Coefficient
tr
Rise Time
tf
Fall Time
Cj
Junction Capacitance
©2001 Fairchild Semiconductor Corporation
QED121, QED122, QED123 Rev. 1.0.1
IF = 100mA
VR = 0V
70
mW/sr
-0.3
% / °C
900
ns
800
ns
11
pF
www.fairchildsemi.com
2
QED121, QED122, QED123 — Plastic Infrared Light Emitting Diode
Absolute Maximum Ratings (TA = 25°C unless otherwise specified)
Figure 1. Normalized Intensity vs. Wavelength
Figure 2. Peak Wavelength vs. Ambient Temperature
1.0
λPE – PEAK EMISSION WAVELENGTH
910
NORMALIZED INTENSITY
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
700
750
800
850
900
950
1,000
IF = 20mA DC
908
906
904
902
900
898
896
894
1,050
0
10
20
λ (nm)
Ie – NORMALIZED RADIANT INTENSITY
Ie – NORMALIZED RADIANT INTENSITY
1
0.1
10
60
100
80
70
90
100
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-15
1000
Normalized to:
IF = 20mA Pulsed
tPW = 20mS
Duty Cycle = 4%
TA = 25°C
0
15
30
45
60
75
90
105
TA – AMBIENT TEMPERTURE (°C)
IF – FORWARD CURRENT (mA)
Figure 6. Forward Voltage vs. Ambient Temperature
Figure 5. Forward Voltage vs. Forward Current
5.0
2.1
IF Pulsed
tPW = 20mS
Duty Cycle = 4%
TA = 25°C
VF – FORWARD VOLTAGE (V)
VF – FORWARD VOLTAGE (V)
50
1.3
Normalized to:
IF = 100mA Pulsed
tPW = 20mS
Duty Cycle = 4%
TA = 25°C
3.0
2.0
1.0
0.0
10
40
Figure 4. Normalized Radient Intensity vs. Ambient Temperature
Figure 3. Normalized Radiant Intensity vs. Forward Current
10
4.0
30
TA – AMBIENT TEMPERTURE (°C)
100
1.8
1.7
1.6
0
15
30
45
60
75
90
105
TA – AMBIENT TEMPERTURE (°C)
IF – FORWARD CURRENT (mA)
©2001 Fairchild Semiconductor Corporation
QED121, QED122, QED123 Rev. 1.0.1
1.9
1.5
-15
1000
IF = 20mA Pulsed
tPW = 20mS
Duty Cycle = 4%
2.0
www.fairchildsemi.com
3
QED121, QED122, QED123 — Plastic Infrared Light Emitting Diode
Typical Performance Curves
Figure 8. Coupling Characteristics of QED12X and QSD12X
110°
100°
90°
80°
70°
120°
60°
130°
50°
140°
40°
150°
30°
160°
20°
170°
180°
1.0
IC (ON) – NORMALIZED COLLECTOR CURRENT
Figure 7. Radiation Diagram
10°
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
0°
1.0
1.0
Normalized to:
d = 0 inch
Pulse Width = 100µs
Duty Cycle = 0.1%
VCC = 5V
RL = 100Ω
TA = 25°C
0.8
0.6
IF = 100mA
0.4
IF = 20mA
0.2
0.0
0
1
2
3
4
5
6
LENS TIP SEPARATION (inches)
©2001 Fairchild Semiconductor Corporation
QED121, QED122, QED123 Rev. 1.0.1
www.fairchildsemi.com
4
QED121, QED122, QED123 — Plastic Infrared Light Emitting Diode
Typical Performance Curves (Continued)
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CorePOWER™
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CTL™
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EcoSPARK®
EfficentMax™
EZSWITCH™ *
™
®
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PowerTrench®
Programmable Active Droop™
®
QFET
QS™
Quiet Series™
RapidConfigure™
™
Saving our world, 1mW/W/kW at a time™
SmartMax™
SMART START™
SPM®
STEALTH™
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SupreMOS™
SyncFET™
PDP SPM™
Power-SPM™
®
The Power Franchise
TinyBoost™
TinyBuck™
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TinyPower™
TinyPWM™
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VCX™
VisualMax™
®
* EZSWITCH™ and FlashWriter® are trademarks of System General Corporation, used under license by Fairchild Semiconductor.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES 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. THESE
SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN,
WHICH COVERS THESE PRODUCTS.
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 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 the 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.
ANTI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,
under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts.
Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications,
and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of
counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are
listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have
full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information.
Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide
any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our
customers to do their part in stopping this practice by buying direct or from authorized distributors.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Advance Information
Formative / In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change in
any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes
at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor. The
datasheet is for reference information only.
Rev. I36
©2001 Fairchild Semiconductor Corporation
QED121, QED122, QED123 Rev. 1.0.1
www.fairchildsemi.com
5
QED121, QED122, QED123 — Plastic Infrared Light Emitting Diode
TRADEMARKS
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not
intended to be an exhaustive list of all such trademarks.
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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