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Document 1644-1

NOITALOSIH
HIG

Coupled Inductors – MSD1038VHalogenFree• High isolation voltage, 2250 Vrms, one minute isolation(hipot) between primary and secondary windings• Ideal for use in a variety of circuits including flyback, multioutput buck, SEPIC, Ćuk and Zeta.
• High efficiency and excellent current handling• Provides Functional Insulation• AEC-Q200 qualifiedAEC

Q200 +125°C

Dimensions are ininchesmmUS +1-847-639-6400 sales@coilcraft.comUK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 1644-1

Revised 10/21/24© Coilcraft Inc. 2024
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 1644-2

Coupled Inductors – MSD1038V Series
HalogenFreeAEC

Q200 +125°C

        Irms (A)8
Coupling
Leakage			
coefficient	 Inductance5	 Isolation6	 Isat7
bothonetyptyp (µH)
(Vrms)(A)
windings winding			Part
Inductance2
number1
(µH)

DCR
SRF
max3	 
typ4
(Ohms)(MHz)

MSD1038V-103ME_
MSD1038V-223ME_
MSD1038V-333ME_
MSD1038V-473ME_
MSD1038V-683ME_

10 ±20%22 ±20%33 ±20%47 ±20%68 ±20%

0.108
0.240
0.340
0.460
0.690

26.0
16.5
13.0
11.0
9.0

≥0.95
≥0.96
≥0.96
≥0.96
≥0.96

0.5
0.7
0.8
0.9
1.0

2250
2250
2250
2250
2250

4.7
3.1
2.6
2.2
1.8

2.75
1.30
1.00
0.92
0.783.90
1.80
1.45
1.30
1.10

MSD1038V-104ME_
MSD1038V-124ME_
MSD1038V-154ME_

100 ±20%120 ±20%150 ±20%

0.950
1.150
1.350

7.5
6.8
6.0

≥0.96
≥0.96
≥0.96

1.2
1.3
1.5

2250
2250
2250

1.5
1.3
1.2

0.67
0.53
0.46

0.95
0.75
0.65

1. When ordering, please specify termination and packaging codes:
MSD1038V-154KEC
Termination: E = RoHS compliant matte tin over nickel over phos bronze.
Special order: Q = RoHS tin-silver-copper(95.5/4/0.5) or P = non-RoHS tin-lead (63/37).
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastictape. (250 parts per full reel). Quantities less thanfull reel available: in tape (not machine ready) orwith leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastictape. Factory order only, not stocked (1000 partsper full reel)
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.
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 2250 Vrms, one minute isolation (hipot) between windings.
7. 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.
8. Current that causes a 40°C temperature rise from 25°C ambient. This
information is for reference only and does not represent absolute
maximum ratings.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Typical L vs Current

Core material Ferrite
Weight: 1.2– 1.5 g
Environmental RoHS compliant, halogen freeTerminations RoHS compliant matte tin over nickel over phos
bronze. Other terminations available at additional cost.
Ambient temperature –40°C to +125°C with Irms current.
Maximum part temperature +165°C (ambient + temp rise).
Storage temperature Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C
Winding-to-winding isolation 2250 Vrms, one minute
Resistance to soldering heat Max three 40 second reflows at+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
Packaging 250/7″ reel; 1000/13″ reel Plastic tape: 24 mm wide,0.35 mm thick, 16 mm pocket spacing, 4.3 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.

Coupled Inductor Core and Winding Loss Calculator
This web-based utility allows you to enter frequency, peak-to-peak(ripple) current, and Irms current to predict temperature rise and overall
losses, including core loss. Go to online calculator.

Typical L vs Frequency

Specificationssales@coilcraft.com
subject to change without notice.
US +1-847-639-6400
Please check ourwebsite for latest information.
UK +44-1236-730595
sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 1644-2

Revised 10/21/24© Coilcraft Inc. 2024
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.