
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
SMD B
12-21/T3D-APQHY/2C
Features
․Package in 8mm tape on 7〞diameter reel.
․Compatible with automatic placement equipment.
․Compatible with infrared and vapor phase reflow solder process.
․Mono-color type.
․Pb-free.
․The product itself will remain within RoHS compliant version.
․Compliance with EU REACH.
․Compliance Halogen Free .(Br <900 ppm ,Cl <900 ppm , Br+Cl < 1500 ppm).
Description
․The 12-21 SMD LED is much smaller than lead frame type components, thus enable smaller board size, higher packing
density, reduced storage space and finally smaller equipment to be obtained.
․Besides, lightweight makes them ideal for miniature applications. etc.
Applications
․Backlighting in dashboard and switch.
․Telecommunication: indicator and backlighting in telephone and fax.
․Flat backlight for LCD, switch and symbol.
․General use.

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Peak Forward Current
(Duty 1/10 @1KHz)
Reflow Soldering : 260 ℃ for 10 sec.
Hand Soldering : 350 ℃ for 3 sec.
Device Selection Guide
Absolute Maximum Ratings (Ta=25℃)

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Electro-Optical Characteristics (Ta=25℃)
Note:
1. Tolerance of Luminous Intensity: ±11%
2. Tolerance of Forward Voltage: ±0.1V

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Bin Range of Luminous Intensity
Bin Range Of Forward Voltage
Note:
1. Tolerance of Luminous Intensity: ±11%
2. Tolerance of Forward Voltage: ±0.1V

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Chromaticity Coordinates Specifications for Bin Grading
Notes:
1.The C.I.E. 1931 chromaticity diagram ( Tolerance ±0.01 ).
2.The products are sensitive to static electricity and care must be fully taken when
handling products.

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
CIE Chromaticity Diagram

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Typical Electro-Optical Characteristics Curves

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Package Dimension
Note: Tolerances unless mentioned ±0.1mm. Unit = mm

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
‧CPN: Customer’s Product Number
‧P/N: Product Number
‧QTY: Packing Quantity
‧CAT: Luminous Intensity Rank
‧HUE: Chromaticity Coordinates & Dom. Wavelength Rank
‧REF: Forward Voltage Rank
‧LOT No: Lot Number
Moisture Resistant Packing Materials
Label Explanation
Reel Dimensions
Note: The tolerances unless mentioned is ±0.1mm ,Unit = mm

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Label
Desiccant Label
Aluminum moisture-proof bag
Carrier Tape Dimensions: Loaded quantity 2000 PCS per reel
Note: The tolerances unless mentioned is ±0.1mm ,Unit = mm
Moisture Resistant Packaging

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Pre-heating
150~200°C
60~120sec.
Above 217°C
60~150sec.
260°C Max.
10sec. Max.
6°C/sec.Max.
Above255°C
30sec.Max.
3°C/sec.Max.
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 After opening the package: The LED's floor life is 1 year under 30℃ or less and 60% RH or less.
If unused LEDs remain, it should be stored in moisture proof packages.
2.4 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 : 60±5℃ 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.
4.Soldering Iron
Each terminal is to go to the tip of soldering iron temperature less than 350℃ 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.

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
Application Restrictions
High reliability applications such as military/aerospace, automotive safety/security systems,
and medical equipment may require different product. If you have any concerns, please contact
Everlight before using this product in your application. This specification guarantees the quality
and performance of the product as an individual component. Do not use this product beyond the
specification described in this document.

DATASHEET
SMD B
12-21/T3D-APQHY/2C
Copyright © 2010, Everlight All Rights Reserved. Release Date : Dec.11.2016.Issue No:DSE-0012203 Rev.3
1. EVERLIGHT reserves the right(s) on the adjustment of product material mix for the specification.
2. The product meets EVERLIGHT published specification for a period of twelve (12) months from date of
shipment.
3. The graphs shown in this datasheet are representing typical data only and do not show guaranteed values.
4. 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 the use of
the product which does not comply with the absolute maximum ratings and the instructions included in these
specification sheets.
5. These specification sheets include materials protected under copyright of EVERLIGHT. Reproduction in any
form is prohibited without obtaining EVERLIGHT’s prior consent.
6. This product is not intended to be used for military, aircraft, automotive, medical, life sustaining or life saving
applications or any other application which can result in human injury or death. Please contact authorized
Everlight sales agent for special application request.
DISCLAIMER