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 Inductance ( H) Within 1 μ ［ ］ ※ 0.15±20% D.C.R. (m ) [Max.] (Typ.) (at 20 ) Saturation current (A) 2 (at20 ) 0.33(0.29) 55.0 Ω ℃ ※ ℃ Temperature rise current (A) 3 ※ 50.0 ※1. Inductance measuring condition: at 1MHz. ※2. Saturation current: The value of D.C. current when the inductance decreases to 80% of it’s nominal value. ※3. Temperature rise current: The value of D.C. current when the temperature rise is △t＝40℃(Ta＝20℃). Page 1 of 2 Revised: 1-Feb-13 SMD Power Inductor CDB78D73 Saturation Current & Temperature Rise Graph ℃ L (20 ) μ 1. CDB78D73NP-R15MC L ( H) 0.18 L (125 ) ℃ △T 260℃ T (℃) 300 250 △T (℃) 60 0.15 50 0.12 40 0.09 30 0.06 20 0.03 10 0.00 0 0 20 40 60 80 100 DC (A) Solder Reflow Condition T (℃) 300 250 Heat Endurance 230℃ 200 50 0 0 60 120 180 240 T (s) 40s ± ℃,60~120s 170 10 100 300 ℃ 230 150 60 100 245℃ PEAK 200 10 150 Temperature Chart 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.+852-2880-6688 FAX.+852-2565-9600 [email protected] Tel.+86-021-5836-3299 FAX.+86-021-5836-3266 [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] Tokyo Seoul Singapore San Jose Tel.+81-3-5202-7112 FAX.+81-3-5202-7105 [email protected] Tel.+82-2-6237-0777 FAX.+82-2-6237-0778 [email protected] Tel.+65-6296-3388 FAX.+65-6296-3390 [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: 1-Feb-13