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 Technical Data Sheet 1.9mm Round Subminiature Axial Infrared LED
IR91-21C
Features
Small double-end package High reliability Low forward voltage Good spectral matching to Si photodetector Pb free The product itself will remain within RoHS compliant version.
Descriptions
IR91-21C is an infrared emitting diode in miniature SMD package which is molded in a water clear plastic with spherical top view lens. The device is spectrally matched with silicon photodiode and phototransistor.
Applications
PCB mounted infrared sensor Infrared emitting for miniature light barrier Floppy disk drive Optoelectronic switch Smoke detector
Device Selection Guide
LED Part No. IR Chip Material GaAlAs Lens Color Water Clear
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 1 of 9
Prepared byJaine Tsai
IR91-21C
Package Dimensions
1.9 0.2 2.5 0.1
0.5 0.1
7.0 min. R0.8 0.1
1.1 0.1
1.4 0.1
7.0 min.
0.65 0.1 0.15 0.05
1.3 0.1 1.4 0.1
0.4 0.1 0.75 0.1
Notes: 1.All dimensions are in millimeters 2.Tolerances unless dimensions 0.1mm
Absolute Maximum Ratings (Ta=25)
Parameter Continuous Forward Current Peak Forward Current Reverse Voltage Operating Temperature Storage Temperature Soldering Temperature Power Dissipation at(or below) 25Free Air Temperature Symbol IF IFP VR Topr Tstg Tsol Pd Rating 65 1.0 5 -40 ~ +85 -40 ~ +85 260 130 Units mA A V mW
Notes: *1:IFP Conditions--Pulse Width100s and Duty1%. *2:Soldering time5 seconds.
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
2.7 0.1
2.0 0.2
Rev 3
Page: 2 of 9
Prepared byJaine Tsai
IR91-21C
Electro-Optical Characteristics (Ta=25)
Parameter Radiant Intensity Peak Wavelength Spectral Bandwidth Symbol Ee p Condition IF=20mA IF=100mA
Pulse Width100s ,Duty1%
Min. 3.0 ---------
Typ. 5.0 25 940 45 1.2 1.4 2.6 -25
Max. ---1.5 1.8 4.0 10 --
Units mW /sr nm nm
IF=20mA IF=20mA IF=20mA IF=100mA
Pulse Width100s ,Duty1%
Forward Voltage
VF
V
IF=1A Reverse Current View Angle IR 21/2 VR=5V IF=20mA
A deg
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 3 of 9
Prepared byJaine Tsai
IR91-21C
Typical Electro-Optical Characteristics Curves
Fig.1 Forward Current vs. Ambient Temperature Fig.2 Spectral Distribution
140 120 100 80 60 40 20
0
100 80 60 40 20 0
IF=20mA Ta=25 C
-25
0
20
40
60
80
100
880 900 920 940 960 980 1000 1020 1040
Fig.3 Peak Emission Wavelength Ambient Temperature
Fig.4 Forward Current vs. Forward Voltage
980
10
4
960
10
3
940
10 2
920
1 10
900 -25
0
25
50
75
100
0
1
2
3
4
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 4 of 9
Prepared byJaine Tsai
IR91-21C
Typical Electro-Optical Characteristics Curves
Fig.5 Relative Intensity vs. Forward Current Fig.6 Relative Radiant Intensity vs. Angular Displacement
1000
Ie-Radiant Intensity(mW/sr)
-20
-10
0
10
20 30
100
1.0 0.9
40 50 60 70 80 0.6 0.4 0.2 0 0.2 0.4 0.6
10
0.8 0.7
0 1 2 3
1
10
10
10
10
10 4
IF-Forward Current (mA)
Fig.7 Relative Intensity vs. Ambient Temperature(C) Fig.8 Forward Voltage vs. Ambient Temperature(C)
7
1.3
5
IF=20mA
1.2
IF=20mA
3
1.1
1
25 50 75 100 120
1
25 50 75 100 120
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 5 of 9
Prepared byJaine Tsai
IR91-21C
Precautions For Use
1. Over-current-proof Customer must apply resistors for protection , otherwise slight voltage shift will cause big current change ( Burn out will happen ). 2. Storage 2.1 Do not open moisture proof bag before the products are ready to use. 2.2 Before opening the package, the LEDs should be kept at 30 or less and 90%RH or less. 2.3 The LEDs should be used within a year. 2.4 After opening the package, the LEDs should be kept at 30 or less and 70%RH or less. 2.5 The LEDs should be used within 168 hours (7 days) after opening the package. 2.6 If the moisture absorbent material (silica gel) has faded away or the LEDs have exceeded the storage time, baking treatment should be performed using the following conditions. Baking treatment : 605 for 24 hours. 3. Soldering Condition 3.1 Pb-free solder temperature profile
3.2 Reflow soldering should not be done more than two times. 3.3 When soldering, do not put stress on the LEDs during heating. 3.4 After soldering, do not warp the circuit board.
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 6 of 9
Prepared byJaine Tsai
IR91-21C
4.Soldering Iron Each terminal is to go to the tip of soldering iron temperature less than 280 for 3 seconds within once in less than the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering of each terminal. Be careful because the damage of the product is often started at the time of the hand solder. 5.Repairing Repair should not be done after the LEDs have been soldered. When repairing is unavoidable, a double-head soldering iron should be used (as below figure). It should be confirmed beforehand whether the characteristics of the LEDs will or will not be damaged by repairing.
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 7 of 9
Prepared byJaine Tsai
IR91-21C
Reliability Test Item And Condition The reliability of products shall be satisfied with items listed below. Confidence level90% LTPD10% NO. Item Test Conditions Test Hours/ Sample Cycles Sizes 22pcs 22pcs IRUx2 EeLx0.8 VFUx1.2 UUpper Specification Limit LLower Specification Limit Failure Judgement Criteria Ac/Re
1 REFLOW Soldering TEMP.2605 6Mins 5secs 15mins 50Cycles 2 Temperature Cycle H : +100 5mins L : -40 15mins 3 Thermal Shock H :+100 L :-10 4 High Temperature Storage 5 Low Temperature Storage 5mins 50Cycles 10secs 5mins 1000hrs 1000hrs 1000hrs 1000hrs
0/1 0/1
22pcs
0/1
TEMP.+100 TEMP.-40
22pcs 22pcs 22pcs 22pcs
0/1 0/1 0/1 0/1
6 DC Operating Life IF=20mA 7 High Temperature/ 85 / 85% R.H High Humidity
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 8 of 9
Prepared byJaine Tsai
IR91-21C
Packing Quantity Specification
1.1000PCS/1Bag20Bags/1Box 2.10Boxes/1Carton
Label Form Specification
CPN: Customer's Production Number P/N : Production Number QTY: Packing Quantity CAT: Ranks HUE: Peak Wavelength REF: Reference LOT No: Lot Number MADE IN TAIWAN: Production Place
RoHS
IR91-21C
Notes
1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for above specification. 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don't reproduce or cause anyone to reproduce them without EVERLIGHT's consent.
EVERLIGHT ELECTRONICS CO., LTD. Office: No 25, Lane 76, Sec 3, Chung Yang Rd, Tucheng, Taipei 236, Taiwan, R.O.C Tel: 886-2-2267-2000, 2267-9936 Fax: 886-2267-6244, 2267-6189, 2267-6306 http:\\www.everlight.com
Everlight Electronics Co., Ltd. Device NoDIR-091-027
http:\\www.everlight.com Prepared date07-20-2005
Rev 3
Page: 9 of 9
Prepared byJaine Tsai


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