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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

MSD1514 Series

Shielded Coupled Power Inductors

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

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Part number

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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.

Tolerance

M = 20%

Termination

E = Matte tin over nickel

Packaging

D = 13" machine-ready reel

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Designer's Kit:

Kit	Values	Price
C463	41 (3 of each)	$160.00

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
Part number 1 (Hover for schematics)	Inductance (µH) 2	Tolerance (%)	typ	max	Isolation Voltage (V)	Leakage Inductance (µH) 5	Turns Ratio
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)
Part number 1 (Hover for schematics)	Inductance (µH) 2	Tolerance (%)	typ	max	SRF typ (MHz) 4	Coupling coefficient	Leakage Inductance (µH) 5	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

When ordering, please specify termination and packaging codes: e.g. MSD1583-105KEC
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
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.
SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
Leakage Inductance is for L1 and is measured with L2 shorted.
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.
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.
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 Frequency

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
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.

MSD1514 Series

Shielded Coupled Power Inductors