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MSD1048 Series

Shielded Coupled Power Inductors

RoHS compliant halogen free

Coilcraft's MSD1048 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.

  • Ideal for Flyback, SEPIC, Ćuk, Zeta and other applications
  • Magnetic shielding allows high-density mounting
  • Tight winding coupling
  • Industry standard footprint
See Selecting inductors for SEPIC
Buy Now:
Count Unit price
1 $1.35
200 $1.07
400 $0.93
1000 $0.72
2400 $0.62
5000 $0.57

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Specifications

Electrical specifications at 25°C.

For Flyback Applications

Part number 1 Inductance (µH) 2 Tolerance (%) DCR max (Ω) 3 Isolation
Voltage (V)
Leakage
Inductance (µH) 5
Turns Ratio
MSD1048-222NE_ 2.2 30 0.019 200 0.30 1 : 1
MSD1048-103ME_ 10 20 0.053 200 0.40 1 : 1
MSD1048-223ME_ 22 20 0.098 200 0.45 1 : 1
MSD1048-473ME_ 47 20 0.21 200 0.50 1 : 1
MSD1048-683ME_ 68 20 0.30 200 0.55 1 : 1
MSD1048-104ME_ 100 20 0.39 200 0.80 1 : 1
MSD1048-224KE_ 220 10 0.84 200 1.0 1 : 1

For SEPIC Applications

Part number 1 Inductance (µH) 2 Tolerance (%) DCR max (Ω) 3 SRF typ (MHz) 4 Coupling coefficient Leakage
Inductance (µH) 5
Isat (A) 6 Irms (A)
both windings 7 one winding 8
MSD1048-222NE_ 2.2 30 0.019 65.0 0.97 0.30 9.1 2.4 3.4
MSD1048-103ME_ 10 20 0.053 27.0 >0.99 0.40 4.3 1.5 2.1
MSD1048-223ME_ 22 20 0.098 17.0 >0.99 0.45 2.9 1.3 1.9
MSD1048-473ME_ 47 20 0.21 12.0 >0.99 0.50 2.0 1.1 1.6
MSD1048-683ME_ 68 20 0.30 9.0 >0.99 0.55 1.7 1.0 1.4
MSD1048-104ME_ 100 20 0.39 7.3 >0.99 0.80 1.3 0.85 1.2
MSD1048-224KE_ 220 10 0.84 4.8 >0.99 1.0 0.90 0.62 0.87
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MSD1048-224KED
  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.
  4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
  5. Leakage Inductance is for L1 and is measured with L2 shorted.
  6. DC current at 25°C that causes a 30% (typ) inductance drop from its value without current. It is the sum of the current flowing in both windings.
  7. 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. To predict temperature rise go to online calculator.
  8. Maximum 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. To predict temperature rise go to online calculator.

Termination:

  • E = RoHS compliant matte tin over nickel over phos bronze.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

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.
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +85°C with (40°C rise) Irms current.
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs Current

Inductance vs. Frequency

Schematics

msd1048schem.gif

Physical characteristics

msd1048d-(1).gif
 

 

Tape and Reel specification

tapereel_pl-(22).gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_o-(1).gif
800 178/330 60/100 13 18,4 12,4 24 16 4 2 5,1 0,35

General specification

Core Material:
Ferrite
Weight:
1.5– 1.8 g
Packaging:
800/13″ reel Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing, 5.1 mm pocket depth
Winding to Winding Isolation:
200 Vrms, one minute

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info