SMD Power Inductor CDB78D73 Description • Ferrite core construction. • Magnetically shielded. • L W H: 10.0 8.0 7.5 mm Max. • Product weight: 11.4g (Ref.) • Moisture Sensitivity Level: 1 • RoHS compliance. RoHS × × Environmental Data • Operating temperature range: -40 +105 (including coil’s self temperature rise) • Storage temperature range: -40 +105 • Solder reflow temperature: 260 peak. ℃～ ℃ ℃～ ℃ ℃ Dimension - [mm] 7.8 +0.2 -0.3 7.3±0.2 a 4 2 . . 0 + 0 2.0 8 . 4 8. 9 b Land pattern and Schematics - [mm] × × 3 . 0 ± 5 . 2 Packaging • Carrier tape and reel packaging. • 13.0”diameter reel • 500pcs per reel Applications • Ideally used in the multiple chopper type DCDC converters for servers and various decentralized power supplier. 4 . 4 0 . 3 2.5 Electrical Characteristics Part No. Stamp CDB78D73NP-R15MC R15 CDB78D73NP-R20MC R20 Inductance ( H) Within 1 μ ［ ］ ※ 0.15±20% 0.20±20% D.C.R. (m ) (at 20 ) Max.(Typ.) Ω ℃ Saturation current (A) (at20 ) Max.(Typ.) ℃ ※2 Temperature rise current (A) 3 ※ 0.33(0.29) 55.0(68.0) 50.0 0.33(0.29) 41.0(51.0) 50.0 ※1 Measuring frequency Inductance at 1MHz ※2 Saturation current: The value of DC current when the inductance decreases to 80% of it's initial value. ※3 Temperature rise current: The actual value of DC current when the temperature rise is △T＝40℃(Ta＝20℃). Page 1 of 2 Revised: 10-Aug-15 SMD Power Inductor CDB78D73 Saturation Current & Temperature Rise Graph ℃ L (20 ) μ 1. CDB78D73NP-R15MC L ( H) 0.18 ℃ △T L (125 ) △T (℃) μ L ( H) 2. CDB78D73NP-R20MC △T (℃) 60 0.24 0.15 50 0.20 50 0.12 40 0.16 40 0.09 30 0.12 30 0.06 20 0.08 20 0.03 10 0.04 10 0 0.00 0 0.00 0 20 40 60 80 100 60 0 10 20 30 40 50 60 DC (A) DC (A) Solder Reflow Condition T (℃) 300 250 Heat Endurance 260℃ 230℃ 200 0 60 120 180 240 245℃ PEAK T (s) 40s ± ℃,60~120s 170 10 100 300 ℃ 230 150 60 100 Temperature Chart 200 10 150 50 0 T (℃) 300 250 50 0 0 60 120 180 240 300 T (s) Please refer to the sales offices on our website - http://www.sumida.com Hong Kong Shanghai Shenzhen Taipei Tel.+852-2880-6781 FAX.+852-2565-9600 [email protected] Tel.+86-21-5836-3299 FAX.+86-21-5836-3266 [email protected] Tel.+86-755-8291-0228 FAX.+86-755-8291-0338 [email protected] Tel.+886-2-8751-2737 FAX.+886-2-8751-2738 [email protected] Saitama(Japan) Seoul Singapore San Jose Tel.+81-48-691-7300 FAX.+81-48-691-7340 [email protected] Tel.+82-2-6237-0777 FAX.+82-2-6237-0778 [email protected] Tel.+65-6296-3388 FAX.+65-6841-4426 [email protected] Tel.+1-408-321-9660 FAX.+1-408-321-9308 [email protected] Chicago Obernzell Neumarkt Tel.+1-847-545-6700 FAX. +1-847-545-6720 [email protected] Tel.+49-8591-937-0 FAX. +49-8591-937-103 [email protected] Tel.+49-9181-4509-110 FAX. +49-9181-4509-310 [email protected] Page 2 of 2 Revised: 10-Aug-15