The MSD1278-563MLD is a shielded coupled inductor from the MSD1278 series, designed for flyback, SEPIC, buck, and Zeta converters. It has a rated inductance of 56 μh per winding with ±20% tolerance and a DCR of 0.190 Ω per winding. Coupling coefficient is 0.99, isolation is 500 Vrms, and saturation current is 4.5 A. Irms is 1.41 A for both windings and 2.00 A for one winding. The part is AEC-Q200 Grade 3 qualified and operates from -40°C to +85°C ambient. Dimensions are 12.3 mm × 12.3 mm × 8.05 mm. It uses RoHS compliant matte tin over nickel over phosphor bronze terminations and is supplied on a 13″ reel with 500 units per reel.
Coilcraft's MSD1278 Series of 1:1 coupled power inductors feature magnetic shielding for compact packaging and tight winding-to-winding coupling. They are ideal for Flyback, SEPIC, Ćuk, Zeta and other applications.
See Selecting inductors for SEPIC
Our MSD1278 Series common mode chokes provide both common-mode and differential-mode filtering in a single device. They are ideal for use in both power line and signal line applications, providing 500 Vrms, one minute winding-to-winding isolation.
Refer to Designing Common Mode Filters for design guidance.
Our MSD1278 Series common mode chokes provide both common-mode and differential-mode filtering in a single device. They are ideal for use in both power line and signal line applications, providing 500 Vrms, one minute winding-to-winding isolation.
Refer to Designing Common Mode Filters for design guidance.
| Coilcraft, Inc. | Coilcraft, Inc. | Coilcraft, Inc. | |
|---|---|---|---|
| Product Category | Inductors, Coils, and Chokes | Inductors, Coils, and Chokes | Inductors, Coils, and Chokes |
| Product Number | MSD1278-563 MSD1278-563MLD | MSD1278-563 MSD1278-563MLD | MSD1278-563 MSD1278-563MLD |
| Product Name | MSD1278 Series Shielded Coupled Power Inductors | MSD1278 Series Common Mode Chokes | MSD1278 Series Common Mode Chokes |
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) |
| Core Material | Ferrite; Ferrite | Ferrite; Ferrite | Ferrite; Ferrite |
| Application | Power Choke | Common Mode Choke; Power Choke; RF Choke | Common Mode Choke; RF Choke |
| Inductance Range | 56 microH | 45 microH | 45 microH |
| DCR | 0.1900 ohms | 0.1900 ohms | 0.1900 ohms |
