Power Inductor & 2 in 1 Transformer < SMD Type: CLS Series> Under Development Type: CLS4D28B ◆ Description ・4 Terminal pins’ type gives a flexible design as inductors or transformers. ・Can also be used as a coupled inductor, two single inductors connected in parallel, as 1:1 transformer or as an autotransformer when connected in series. ・Core material: Ferrite. ・Custom design is available. ◆ Feature ・Max. Operating frequency: 1MHz. ・2 in 1 Coils for high efficiency up-down DC-DC converters.(SEPIC, Zeta, Cuk converter). ・Storage temperature range: -40℃~+105℃. ・Operating temperature range: -40℃~+105℃ (including coil’s self-heat). ・Product weight: 230mg(Ref.). ・Ideally used in the power supply for DSC､Note PC､DVC and W-LED backlighting. ◆ Dimensions (mm) 0.2 1.8 0.1 0.1 MAX. 3.0 0.1 5.0 1.6 0.2 4.8 4.6 ◆ Schematics (Bottom) 2 3 1 4 ◆ Land Pattern (mm) 0.9 2.0 1.2 S MAX. 6.0 ・RoHS Compliance. 2.4 “ S ” indicates polarity. Please refer to the sales offices on our website for a representative near you www.sumida.com 1/4 Power Inductor & 2 in 1 Transformer < SMD Type: CLS Series> Type: CLS4D28B ◆ Specification D.C.R. Part No. Stamp Inductance [Max.] (ｍΩ) ［Within］ (at 20℃)※1 Saturation Current（A） ※2 In parallel (2-1) (4-3) at 20℃ Temperature Rise current (A) ※3 In series at 100℃ at 20℃ In parallel at 100℃ In series CLS4D28B-2R2N□ A 2.2µH±30% 48(37) 58(44) 1.60 1.28 0.88 0.72 2.88 1.44 CLS4D28B-3R5N□ B 3.5µH±30% 74(57) 89(69) 1.34 1.40 0.64 0.50 2.26 1.14 CLS4D28B-5R2N□ C 5.2µH±30% 100(77) 123(95) 1.02 0.86 0.52 0.42 1.89 0.95 CLS4D28B-6R8N□ D 6.8µH±30% 132(102) 162(125) 0.92 0.74 0.44 0.38 1.66 0.78 CLS4D28B-1ØØN□ E 10µH±30% 152(117) 190(146) 0.80 0.68 0.38 0.34 1.54 0.72 CLS4D28B -15Ø N□ F 15µH±30% 260(200) 318(244) 0.62 0.54 0.32 0.26 1.05 0.54 CLS4D28B -22ØN□ G 22µH±30% 320(246) 405(311) 0.50 0.46 0.26 0.22 1.03 0.45 CLS4D28B -33ØN□ H 33µH±30% 535(413) 470(514) 0.42 0.34 0.22 0.18 0.77 0.37 CLS4D28B -47ØN□ J 47µH±30% 650(500) 820(631) 0.37 0.33 0.18 0.14 0.72 0.31 ※ Description of Part Name CLS4D28B -2R2N□ B Box C Carrier Tape ※1. ( ) typical value. ※2. Saturation Current: The DC current at which the inductance decreases to 90% of it’s nominal value. ※3.Temperature rise current: The DC current at which the temperature rise is △t＝40℃.(Ta＝20℃). ◆ Typical SEPIC Schematic Vin Vout L1 C1 L2 D C2 Please refer to the sales offices on our website for a representative near you www.sumida.com 2/4 Power Inductor & 2 in 1 Transformer < SMD Type: CLS Series> Type: CLS4D28B ◆ Typical L Vs Current Parallel mode L vs Idc ( at 20℃ ) ( REF.） 100 Ｌ（ µΗ ) 47µΗ 33µΗ 22µΗ 15µΗ 10 10µΗ 6.8µΗ 5.2µΗ 3.5µΗ 2.2µΗ 1 0.01 0 100 0.1 0 1 Ｉdc（A） Series mode L vs Idc ( at 20℃ ) ( REF.） 10 Ｌ（ µΗ ) 47µΗ 33µΗ 22µΗ 15µΗ 10 10µΗ 6.8µΗ 5.2µΗ 3.5µΗ 2.2µΗ 1 0.01 0 0.1 0 Ｉdc（A） 1 10 Please refer to the sales offices on our website for a representative near you www.sumida.com 3/4 Power Inductor & 2 in 1 Transformer < SMD Type: CLS Series> Type: CLS4D28B ◆ Recommendation Reflow Condition T( ℃) Heat Endurance Test 300 T( ℃) 260℃ 250 300 230℃ 200 10 200 60 150 100 100 50 0 50 0 60 180 120 240 245 ℃ PE AK 230 ℃ 250 150 0 Temperature Chart 300 T( s) 40s 170±10 ℃、60 ~ 120s 0 60 120 180 240 300 T(s) ◆ Packaging with Embossed Tape and reel Qty.: 2000pcs/reel 5.2 6.2 5.5±0.08 Ba r co de la be l Bar code label Sprocket SprocketHoles Holes 2.0±0.1 1.75±0.1 12.0±0.2 (4.75) 8.0±0.1 1.5 +0.1 -0 3.3 Ref. 4.0±0.1 Leading LeadingEdge Edge Please refer to the sales offices on our website for a representative near you www.sumida.com 4/4