Data Sheet SMLK34 series PSML2 4520（1808） 4.5×2.0mm（t=0.6mm） Specifications ・High heat radiation package from ROHM original flat frame structure. ・Warm white, True white. Color Type WB Specifications Chip Structure Part No. ■ SMLK34WBECW ■SMLK34WBEDW ■SMLK34WBEAW Absolute Maximum Ratings (Ta＝25℃) Electrical and Optical Characteristics (Ta＝25℃) Forward Voltage VF Chromaticity Coordinates Luminous Intensity IV Luminous Flux ΦV Power Forward Peak Forward Reverse Operating Storage Dissipation Current Current Voltage Temperature Temperature Typ. Min. Typ. IF(mA) Typ. IF(mA) (x, y) IF(mA) (mcd) PD(mW) IF(mA) IFP(mA) VR(V) Topr(℃) Tstg(℃) (lm) (V) IF(mA) (mcd) Emitting Color (0.30, 0.28) White InGaN ■SMLK34WBEBW 360 High color rendering index (5000K) High color rendering index (3000K) 90 300＊ - -40 to +100 -40 to +100 3.4 4000 5500 (0.34, 0.34) 60 (14) 60 (0.345, 0.351) 60 60 2200 3800 (0.44, 0.40) (9.5) ＊Duty1/10 1kHz ( ): Reference Dimensions Recommended Solder Pattern Viewing Angle 4.5 4 Anode Index 1.74 2 1.1 ① 1.98 ④ ② (deg) SCANNING ANGLE Directivity (deg) X−Y ③ 3.65 30° 0.6 10° 20° 30° 40° 0 50 1.4 10° 20° 30° 40° 50° 60° 70° 70° 80° 50 0° 60° 70° RELATIVE INTENSITY (%) (%) RELATIVE INTENSITY 10° 50° 60° 80° 20° 40° 50° 60° ④ (deg) SCANNING ANGLE Directivity (deg) X’−Y’ 30° 70° 2.75 0.9 0.2 ② 80° 80° 90° 100 90° 100 50 0 50 RELATIVEINTENSITY INTENSITY (%) (%) RELATIVE ③ Tolerance : ±0.2 （unit : mm） （unit :mm） Chromaticity Diagram IV-Øv 25 0.48 (4200K) (3500K) (2900K) 20 (5000K) 0.40 0.36 0.32 High Color Rendering (AW) Luminous Flux (lm) 0.44 CIE y 0° 40° 90° 100 15 10 High Color Rendering (BW) 0.28 5 Standard (CW) 0.24 Standard (DW) 0.30 0.34 0.38 0.42 0.46 0.50 0 0.54 0 CIE x www.rohm.com 10° 50° ① 0.26 20° © 2011 ROHM Co., Ltd. All rights reserved. 1 2 3 4 5 6 7 Luminous Intensity (cd) 1/3 2011.05 - Rev.B 90° 100 SMLK34 Series Electrical Characteristics Curves Forward Current-Forward Voltage Ta=25°C FORWARD CURRENT：IF (mA) 100 ■ ■SMLK34WBECW ■SMLK34WBEDW ■SMLK34WBEAW ■SMLK34WBEBW 10 1 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 FORWARD VOLTAGE：VF (V) Luminous Intensity-Atmosphere Temperature IF=60mA RELATIVE LUMINOUS INTENSITY (a.u) 1.6 ■ 1.4 ■SMLK34WBECW ■SMLK34WBEDW ■SMLK34WBEAW ■SMLK34WBEBW 1.2 1.0 0.8 0.6 0.4 -40 -20 0 20 40 60 80 100 ATMOSPHERE TEMPERATURE：Ta (°C) Luminous Intensity-Forward Current Ta=25°C RELATIVE LUMINOUS INTENSITY (a.u.) 2.0 ■ ■SMLK34WBECW ■SMLK34WBEDW ■SMLK34WBEAW ■SMLK34WBEBW ■ ■SMLK34WBECW ■SMLK34WBEDW ■SMLK34WBEAW ■SMLK34WBEBW 1.5 1.0 0.5 0.0 0 10 20 30 40 50 60 70 80 90 FORWARD CURRENT：IF (mA) MAXIMUM FORWARD CURRENT：IF (mA) Derating Rj-a≒125℃/W 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE：Ta (°C) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/3 2011.05 - Rev.B SMLK34 Series Rank Reference of Brightness White (WB) Luminous Package Intensity size (mcd) (mm) Height(mm) PSML2 4520 0.6 （Ta=25˚C, IF＝60mA） C D E F G H 2200 to 2700 2700 to 3300 3300 to 4000 4000 to 4800 4800 to 5800 5800 to 7000 SMLK34WBEAW SMLK34WBEBW SMLK34WBECW SMLK34WBEDW Part No. Construction Chromaticity rank S M L Series name K 3 4 W B E Package name 4 Chip Type Ultra High Brightness Type C W 1 1 F Center Color Resin Color Taping Specifications Brightness Rank∗ temperature Emitting Color WB White W MilkyWhite 1 Cathode at sprocket hole side A High color rendering: color temperature around 5000K B High color rendering: color temperature around 2800K C Color temperature around 8000K D Color temperature around 6000K P Color temperature around 3000K W Wide gamut type ∗ Concerning the Brightness rank • Please refer to the rank chart above for luminous intensity classification. • Part name is individual for each rank. • When shipped as sample, the part name will be a representative part name. General products are free of ranks. Please contact sales if rank appointment is needed. Packing Specification ROHM LED products are being shipped with desiccant (silica gel) concluded in moisture-proof bags. Pasting the moisture sensitive label on the outer surface of the moisture-proof bags or enclosing the humidity indication card inside the bag is available upon request. Please contact the nearest sales office or distributer if necessary. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/3 2011.05 - Rev.B Notice Notes Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A