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Coilcraft CPS
Close up of MSD1514
3D Model Datasheet

MSD1514 Series

Shielded Coupled Power Inductors

RoHS compliant halogen free

Coilcraft's MSD1514 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:
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Count Unit price
1 $4.39
175 $3.86
700 $1.74
1400 $1.36
2800 $1.17
5250 $1.08

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
(Hover for schematics)
Inductance (µH) 2 Tolerance (%) DCR (Ω) 3 Isolation
Voltage (V) 		Leakage
Inductance (µH) 5 		Turns Ratio
typ max
MSD1514-252ME_ 2.5 20 0.010 0.012 500 0.20 1 : 1
MSD1514-472ME_ 4.7 20 0.012 0.014 500 0.20 1 : 1
MSD1514-103ME_ 10 20 0.015 0.018 500 0.40 1 : 1
MSD1514-123ME_ 12 20 0.018 0.022 500 0.40 1 : 1
MSD1514-153ME_ 15 20 0.024 0.028 500 0.42 1 : 1
MSD1514-223ME_ 22 20 0.031 0.036 500 0.45 1 : 1
MSD1514-273ME_ 27 20 0.034 0.039 500 0.45 1 : 1
MSD1514-333ME_ 33 20 0.045 0.052 500 0.45 1 : 1
MSD1514-473ME_ 47 20 0.065 0.075 500 0.55 1 : 1
MSD1514-683ME_ 68 20 0.078 0.090 500 0.55 1 : 1
MSD1514-104KE_ 100 10 0.12 0.13 500 0.55 1 : 1
MSD1514-224KE_ 220 10 0.26 0.29 500 0.70 1 : 1
MSD1514-334KE_ 330 10 0.33 0.37 500 0.80 1 : 1
MSD1514-474KE_ 470 10 0.50 0.55 500 1.2 1 : 1
MSD1514-105KE_ 1000 10 1.1 1.3 500 2.0 1 : 1

For SEPIC Applications

Part number 1
(Hover for schematics)
Inductance (µH) 2 Tolerance (%) DCR (Ω) 3 SRF typ (MHz) 4 Coupling coefficient Leakage
Inductance (µH) 5 		Isat (A) 6 Irms (A)
typ max 10% drop 20% drop 30% drop both windings 7 one winding 8
MSD1514-252ME_ 2.5 20 0.010 0.012 34.0 0.97 0.20 25.0 28.0 30.5 6.0 7.8
MSD1514-472ME_ 4.7 20 0.012 0.014 25.0 0.98 0.20 19.5 21.8 23.7 5.4 7.6
MSD1514-103ME_ 10 20 0.015 0.018 16.5 0.99 0.40 13.4 15.0 16.2 4.8 6.8
MSD1514-123ME_ 12 20 0.018 0.022 14.5 0.99 0.40 12.2 13.7 14.8 4.7 6.6
MSD1514-153ME_ 15 20 0.024 0.028 11.0 >0.99 0.42 10.9 12.2 13.3 4.1 5.8
MSD1514-223ME_ 22 20 0.031 0.036 10.0 >0.99 0.45 9.0 10.1 11.0 3.6 5.1
MSD1514-273ME_ 27 20 0.034 0.039 8.5 >0.99 0.45 8.1 9.1 9.9 3.5 4.7
MSD1514-333ME_ 33 20 0.045 0.052 7.2 >0.99 0.45 7.4 8.2 9.0 3.0 3.9
MSD1514-473ME_ 47 20 0.065 0.075 5.6 >0.99 0.55 6.2 6.9 7.5 2.6 3.5
MSD1514-683ME_ 68 20 0.078 0.090 5.2 >0.99 0.55 5.1 5.7 6.2 2.2 3.2
MSD1514-104KE_ 100 10 0.12 0.13 3.8 >0.99 0.55 4.2 4.8 5.2 2.0 2.5
MSD1514-224KE_ 220 10 0.26 0.29 2.3 >0.99 0.70 2.9 3.2 3.5 1.3 1.7
MSD1514-334KE_ 330 10 0.33 0.37 2.1 >0.99 0.80 2.3 2.6 2.8 1.2 1.6
MSD1514-474KE_ 470 10 0.50 0.55 1.7 >0.99 1.2 2.0 2.2 2.4 0.92 1.3
MSD1514-105KE_ 1000 10 1.1 1.3 1.1 >0.99 2.0 1.3 1.5 1.6 0.66 0.77
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MSD1583-105KEC
  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. Isat: DC current, at which the inductance drops the specified amount from its value without current. It is the sum of the current flowing in both windings.
  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.

Termination:

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

Packaging:

  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.
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):
See FIT/MTBF Calculations

Performance curves

Inductance vs Current

Inductance vs Current

Inductance vs Frequency

Inductance vs Frequency

Schematics

msd1514schem.gif

Physical characteristics

msd1514d-(1).gif
 

Tape and Reel specification

tapereel_pl-(25).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_ak-(7).gif
175 330 100 13 38,4 32,4 32 24 4 2 14.3 0,5

General specification

Core Material:
Ferrite
Weight:
9.0 – 11.8 g
Packaging:
175/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 14.3 mm pocket depth
Winding to Winding Isolation:
500 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 with pure water or alcohol only. More info.