SURFACE MOUNT LED LAMPS Low Current Type (IF≦10mA) Back-fire chip LEDs(Reverse package) SML-811 Series Yellow Package Size （mm） Orange Red AlGaInP on GaAs 590nm 611nm 630nm SML-811WT SML-811DT SML-811UT 3412 (1305) 3.4×1.24 t=1.1 ■ Absolute Maximum Ratings（Ta=25℃） ■ External Dimensions（Unit：mm） Peak Forward Reverse Operating Stotage forward current voltage temperature temperature current IF VR Topr Tstg ＊IFP （mW） （mA） （V） （°C） （°C） （mA） 3.4 1.2 Power Emitting dissipation color PD SML-811WT Yellow SML-811DT Orange SML-811UT Red 1.25 R1.25 .3 62 25 5 100 -40 to +85 R0 Resist 4- -40 to +100 0.28 1.1 Part No. ＊ IFP measured under duty ≦1/ 10,pulse width ≦0.1ms. Cathode mark ■ Electrical Optical Characteristics（Ta=25℃） Resin Color Part No. Forward voltage VF Typ. (V) SML-811WT SML-811DT SML-811UT Reverse current IR IF (mA) Max. (µA) VR (V) 10 100 5 Transparent 1.95 Clear Light wavelength Brightness IV Peak Half-wave ∆λ λp Typ. (nm) Typ. (nm) 590 15 611 16 630 18 Terminal 1.8 IF (mA) 10 Min. ( mcd) Typ. IF (mcd) (mA) 9 18 11.2 22.4 Tolerance:±0.1 ■ Directivity 10 SCANNING ANGLE(deg) X’ 0° Y’ 30° 30° 60° 60° 90° 100 50 0 90° 100 50 Relative brightness (%) (Typ.) ■ Recommemded Pad Layout ■ Packaging Spacifications（Unit：mm） Tape Spacifications：T86〈3,000pcs／reel〉 Reel Spacifications 1.25 Lavel Position Feeding direction 4 φ13 1.2 φ60 φ180 11.4 3.5 5.5 3.7 The recommended thickness of the screen mask for soldering is between 100 and 200μm. The hole size of the screen mask should be same as the recommended land pattern or smaller. 0.5 φ2.4 1.5 （Unit：mm） 8 1.75 φ1.5 4.2 Hole 2 SURFACE MOUNT LED LAMPS ■ Electrical Characteristic Curves Forward Current - Forward Voltage SML-811WT Ta＝25℃ SML-811DT SML-811UT 10.0 2.50 1.2 1.0 0.8 0.6 0.4 −30−20−10 0 10 20 30 40 50 60 70 80 90 100 3.00 FORWARD VOLTAGE : VF (V) CASE TEMPERATURE : Tc (℃) Relative Luminous Intensity - Forward Current SML-811WT f＝1kHz DC 400 SML-811DT SML-811UT SML-811UT 300 DF＝50％ 200 20％ 10 100 4 15％ 100 10％ 0 5％ 0 10 20 30 40 50 1 1 60 Derating SML-811WT 30 SML-811DT SML-811UT 20 10 0 0 10 20 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE : Ta (℃) 1000 PULSE DURATION : Tw (μs) PEAK FORWARD CURRENT : (mA) MAXIMUM FORWARD CURRENT : IF Max. (mA) SML-811WT 10 SML-811DT IFP Max／IF Max 500 RELATIVE LUMINOUS INTENSITY Ratio of Maximum Tolerable Peak Current - Pulse Duration 200Hz 100Hz 2.00 SML-811UT 2kHz 1kHz 1.50 SML-811DT 1.4 10kHz 1.0 1.00 SML-811WT 1.6 RELATIVE LUMINOUS INTENSITY 100.0 FORWARD CURRENT : IF (mA) Relative Luminous Intensity - Case Temperature 10000 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1