Shielded Coupled Power Inductors
MSD1048 Series
- Shielded coupled inductors for Flyback, SEPIC, Ćuk, Zeta and other applications
- See Selecting inductors for SEPIC and SEPIC Inductor Selector tool
- Also suitable for use as common mode chokes
- Excellent coupling coefficient: K > 0.97
- Saturation current rating up to 9.1 Amps! Low DC resistance provides high efficiency
- 200 Vrms, one minute winding-to-winding isolation
- RoHS-compliant. 260°C compatible. Matte tin over nickel over phos bronze terminations
- COTS Plus tin-silver-copper and tin-lead terminations available
SPECIFICATIONS
L vs Frequency
L vs CurrentCore loss 
Schematics
Dimensions 
Tape and reel specifications 
3D model
| Part number1 Click to get parts |
Inductance2 (µH) |
DCR max3 (Ohms) |
SRF typ4 (MHz) |
Coupling coefficient typ |
Leakage L typ5 (µH) |
Isat6 (A) |
Irms (A) | |
|---|---|---|---|---|---|---|---|---|
| both windings7 |
one winding8 |
|||||||
| MSD1048-222NE_ | 2.2 ±30% | 0.019 | 65 | 0.97 | 0.30 | 9.1 | 2.4 | 3.4 |
| MSD1048-103ME_ | 10 ±20% | 0.053 | 27 | >0.99 | 0.40 | 4.3 | 1.5 | 2.1 |
| MSD1048-223ME_ | 22 ±20% | 0.098 | 17 | >0.99 | 0.45 | 2.9 | 1.3 | 1.9 |
| MSD1048-473ME_ | 47 ±20% | 0.208 | 12 | >0.99 | 0.50 | 2.0 | 1.1 | 1.6 |
| MSD1048-683ME_ | 68 ±20% | 0.297 | 9.0 | >0.99 | 0.55 | 1.7 | 1.0 | 1.4 |
| MSD1048-104ME_ | 100 ±20% | 0.387 | 7.3 | >0.99 | 0.80 | 1.3 | 0.85 | 1.2 |
| MSD1048-224KE_ | 220 ±10% | 0.840 | 4.8 | >0.99 | 1.0 | 0.90 | 0.62 | 0.87 |
| 1 | When ordering, please specify termination and packaging codes: e.g. MSD1048-224KED | |
| Termination: | E = RoHS compliant matte tin over nickel over phos bronze Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). |
|
| Packaging: | D = 13" reel, machine-ready EIA-481 embossed plastic tape (800 parts per full reel). B = Less than full reel In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. |
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| 2 | Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. | |
| 3 | DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator. | |
| 4 | SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. Details | |
| 5 | Leakage Inductance is for L1 and is measured with L2 shorted. | |
| 6 | Isat: DC current, at which the inductance drops 30% (typ) from its value without current. It is the sum of the current flowing in both windings. Details | |
| 7 | Irms, both windings: Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Determine temperature rise. | |
| 8 | Irms, one winding:
Current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Determine temperature rise. |
|
| 9 | Ambient temperature range: | −40°C to +85°C with Irms current. |
| 10 | Storage temperature range: | Component: −40°C to +125°C Tape and reel packaging: −40°C to +80°C |
| 11 | Maximum part temperature: +125°C (Ambient + temperature rise) | |
| 12 | Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. | |
| 13 | Electrical specifications at 25°C. | |
| Refer to Soldering Coilcraft Components before soldering. | ||
| PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info. | ||
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