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1 Ev r r d Features/ Single color/ 3.1 High bright output/ Low power consumption/ High reliability and long life/ Descriptions/ Dice material/ AlGaInP Emitting Color/ Super Bright Green/ Device Outline/ mm Oval Type / mm Lens Type Red Diffused / Directivity/ Relative Luminous Ta=25 C IF=2mA X DIRECTIVITY ieve 6 3 Radiation Angle Y 9.8±.5 1.1± ±.1 1.5±.5 CATHODE 3.9 Y 6 Part No.: L3931LRD 25.4Min ±.1 NOTE/: 1. All dimensions are millimeters/ mm. 2. Tolerance is +/-.2mm unless otherwise noted/.2mm X.8Max.5± No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com

2 Ev r r d Absolute maximum ratings/ Ta = 25 Parameter Reverse Voltage Forward Current Power Dissipation Pulse Current Operating Temperature Storage Temperature Symbol Test Condition Values Min. Max. Unit VR IR = 3 A 5 -- V IF ma Pd mw Ipeak Duty=.1mS 1kHz ma Topr Tstr Electrical and optical characteristics/ Ta = 25 Parameter Forward Voltage Reverse Current Dominate Wavelength Peak Wavelength Spectral Line half-width Luminous Intensity Viewing Angle Symbol Part No.: L3931LRD Test Condition Values Min. Typ. Max. Unit VF IF = 2mA V IR VR = 5V A d IF = 2mA nm p IF=2mA nm IF = 2mA nm IV IF = 2mA mcd ieve 2 1/2 IF = 2mA / Deg No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com

3 Ev r r d Typical electrical/optical characteristic curves/ Forward Current(mA) Forward Current(mA) Fig1. Vs Forward Voltage(V) Fig3. Vs Fig2. Vs Fig4. Vs Relative Luminous Intensity Ambient Temperature TA ( ) Fig5. VS Luminous Intensity Relative Value at IF=2mA Relative Luminous Intensity IF-Forward Current (ma) Ambient Temperature TA ( ) Wavelength (nm) Part No.: L3931LRD ieve No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com 5 SPECIFICATION

4 Ev r r d Label Form Specification/ P/N Rank / / Qty Date Lot No P/N: Customer's Production Number/ QTY: Packing Quantity/ Ranks: Iv / Vf / WD pcs QC Iv Iv Rank/ Vf Vf Rank/ WD Color Group/ QC: Quality Control chapter/ Date: mm / dd / yy mm Month/dd Date/yy Year/ Lot No: Production batch Number/ Lead Forming/ 1. Any lead forming or bending must be done before soldering. Everred Tech Ltd. 2. When forming leads, there must be a minimum of 2mm clearance between the base of the LED lens and the lead bend. 2 ieve No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com SPECIFICATION

5 Ev r r d 3. Avoid bending the leads at the same point more than once. 4. During assembly onto PCB, the lead pitch of the LED must match the pitch of the mounting holes on the PCB during component placement. Soldering Condition/ Careful attention should be paid during soldering. When soldering, leave more then 2mm from solder joint to case, and soldering beyond the base of the tie bar is recommended. LED 2mm Avoiding applying any stress to the lead frame while the LEDs are at high temperature particularly when soldering. LED Recommended soldering conditions/: Hand Soldering Temp.at tip of iron 3 Max.(3WMax.) 3 3 Soldering time 3 sec Max. 3 Distance 2mm Min.(From solder joint to case) 2 Preheat temp. Bath temp. Bath time. Distance DIP Soldering 1 Max. (6 sec Max.) Max sec Max. 3 2mm Min 2. ieve No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com

6 Ev r r d Cleaning/ 1. Do not clean LEDs with water, Alcohol are recommended solvents for cleaning. When using other solvents, it should be confirmed beforehand whether the solvents will dissolve the resin or not. 2. LEDs may be damaged by ultrasonic-washed. Before cleaning, a pre-test should be done to confirm whether any damage to the LEDs will occur. LED Storage/ 1. Environmental temperature: , Recommended: Environmental humidity: 3%---7%, Recommended: 4%---6% 3%---7% 4%---6% Static Electricity/ 1. Static Electricity or power surge will damage the LED. It is recommended that a wrist band or an anti-electrostatic glove be used when handling the LEDs. LED 2. All production machinery and test instruments must be electrically grounded. ieve No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com

7 Ev r r d 3. Maintain a humidity level of 5% or higher in production areas. 5% 4. Use anti-static packaging for transport and storage. Notes/ 1. This datasheet will be update regularly, if there comes out any changes, pls confirmed by the latest datasheet., 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. Everred 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. ieve No 438 Tianyaoqiao Road, 23 Shanghai, China. Tel: Fax: sales@ieverred.com