SMD Power Inductors. Features: Applications: Figure 1. Figure 2. Page <1> 20/06/11 V1.1

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1 Features: Ferrite based SMD inductor with lower core loss. Ideal for LCD driver, DSC/DVC, Notebook PC or High density board design. Operating temperature range -55 C to C. MCSDRH73B - Series High current output chokes, up to 8 amperes with about 30% roll off. Low profile 3.55 mm maximum height. Foot print : mm maximum. MCSDRH125B - Series Applications: Integrated DC/DC converter. Notebook computers. Excellent for power line DC-DC conversion application used in hard disk, notebook computers and other electronic equipment. High current output chokes, up to 24.2 amperes with about 30% roll off. Low profile 6 mm maximum height. Foot print : mm maximum. Figure 1 Top View Side View Bottom View Suggest PCB Layout Figure 2 Top View Side View Bottom View Suggest PCB Layout Dimensions : Millimetres Page <1> 20/06/11 V1.1

2 Mechanical Dimensions Type OCL ±20% MCSDRH73B (Figure 1) (mm) Electrical Characteristics (Maximum) I sat MCSDRH125B (Figure 2) (mm) A 7.3 ± ±0.5 - B 7.3 ± ±0.5 - C 3.55 (Maximum) 6 (Maximum) D 7 ±0.3-7 (Reference) E 3.9 (Reference) 5 (Reference) F 2 (Reference) 2.5 (Reference) L at I sat I rms L at I rms Part Number MCSDRH73B-1R0MHF MCSDRH73B-1R5MHF MCSDRH73B-2R2MHF MCSDRH73B-3R3MHF MCSDRH73B-4R7MHF MCSDRH73B-6R8MHF MCSDRH73B-8R2MHF MCSDRH73B-100MHF MCSDRH73B-150MHF MCSDRH73B-220MHF MCSDRH73B-330MHF MCSDRH73B-470MHF MCSDRH73B-680MHF MCSDRH73B-820MHF MCSDRH73B-101MHF MCSDRH73B-151MHF MCSDRH73B-221MHF MCSDRH73B-331MHF MCSDRH73B-471MHF MCSDRH73B-681MHF MCSDRH73B-821MHF MCSDRH73B-102MHF Page <2> 20/06/11 V1.1

3 Electrical Characteristics OCL ±20% (Maximum) I sat L at I sat I rms L at I rms Part Number MCSDRH125B-R82MHF MCSDRH125B-1R5MHF MCSDRH125B-2R2MHF MCSDRH125B-3R3MHF MCSDRH125B-4R7MHF MCSDRH125B-6R8MHF MCSDRH125B-8R2MHF MCSDRH125B-100MHF MCSDRH125B-150MHF MCSDRH125B-220MHF MCSDRH125B-330MHF MCSDRH125B-470MHF MCSDRH125B-680MHF MCSDRH125B-820MHF MCSDRH125B-101MHF MCSDRH125B-151MHF MCSDRH125B-221MHF MCSDRH125B-331MHF MCSDRH125B-471MHF MCSDRH125B-681MHF MCSDRH125B-821MHF MCSDRH125B-102MHF Note : 1. OCL (Open Circuit Inductance) and L at I rms and L at I sat and are measured at: 100 KHz, 0.25 V at 25ºC. 2. I sat : DC current that causes inductance to drop by approximately 30% from OCL; (T a = 25ºC). 3. I rms : DC current that causes an approximate temperature rise ( T) of 40 C; (T a = 25ºC). 4. Inductance Vs. DC bias curve, please see the next page to get more detail information. 5. Inductance tolerance: ±20%, Base type: Plastic. Page <3> 20/06/11 V1.1

4 Inductance vs. Current Page <4> 20/06/11 V1.1

5 Inductance vs. Current Disclaimer This data sheet and its contents (the "Information") belong to the Premier Farnell Group (the "Group") or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group's liability for death or personal injury resulting from its negligence. SPC Multicomp is the registered trademark of the Group. Premier Farnell plc Page <5> 20/06/11 V1.1