MSD1514

Document 1308-1
Coupled Inductors MSD1514
• Excellent coupling coefficient (k ≥ 0.97)
•Ideal for use in a variety of circuits including flyback, multioutput buck, SEPIC, Zeta, and Ćuk.
• High inductance, high efficiency and excellent current handling.
• In SEPIC topologies, the required inductance for each winding
is half the value needed for two separate inductors, allowing
selection of a part with lower DCR and higher current handling.
+
+
D
L1
C
L2
VOUT
C
VIN
–
SW
–
Core material Ferrite
Core and winding loss Go to online calculator
Environmental RoHS compliant, halogen free
Terminations RoHS compliant matte tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight: 9.0 – 11.8 g
Ambient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise).
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation (hipot) 500 Vrms
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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 175/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick,
24 mm pocket spacing, 14.3 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Typical Flyback Converter
D
L2
+
VOUT
C
AUX
–
+
+
VIN
L1
D
SW
VOUT
C
–
–
Typical Buck Converter with auxiliary output
D
+
L1
VIN
C
L2
Q
–
+
C1
C
–
Typical SEPIC schematic
+
+
–
L2
C1
Q
VIN
VOUT
L1
C
D
Typical Zeta schematic
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
C
VOUT
–
Document 1308-1 Revised 05/06/16
© Coilcraft Inc. 2016
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 1308-2
MSD1514 Coupled Inductors
SRFCouplingLeakage Isat (A)5 Irms (A)
Inductance2 DCR (Ohms)3 typ4 coefficientinductance 10%
20% 30%both one
Part number1
(µH)
typ max (MHz) typ
typ (µH) drop dropdrop windings6 winding7
MSD1514-252ME_
2.5 ±20%
0.010 0.012
34.0
0.97
0.20
25.0
28.0 30.5
5.1
7.8
MSD1514-472ME_
4.7 ±20%
0.012 0.014
25.0
0.98
0.20
19.5
21.8 23.7
4.5
7.6
MSD1514-103ME_
10 ±20%
0.015 0.018
16.5
0.99
0.40
13.4
15.0 16.2
4.0
6.8
MSD1514-123ME_
12 ±20%
0.018 0.022
14.5
0.99
0.40
12.2
13.7 14.8
3.7
6.6
MSD1514-153ME_
15 ±20%
0.024 0.028
11.0
>0.99
0.42
10.9
12.2 13.3
3.4
5.8
MSD1514-223ME_
22 ±20%
0.031 0.036
10.0
>0.99
0.45
9.00 10.1 11.0
3.0
5.1
MSD1514-273ME_
27 ±20%
0.034 0.039
8.50
>0.99
0.45
8.14
9.13 9.90
2.95
4.7
MSD1514-333ME_
33 ±20%
0.045 0.052
7.20
>0.99
0.45
7.40
8.20 9.00
2.55
3.9
MSD1514-473ME_
47 ±20%
0.065 0.075
5.60
>0.99
0.55
6.20
6.90 7.50
2.20
3.45
MSD1514-683ME_
68 ±20%
0.078 0.090
5.20
>0.99
0.55
5.10
5.70 6.20
2.00
3.20
MSD1514-104KE_
100 ±10% 0.115 0.126
3.80
>0.99
0.55
4.20
4.75 5.15
1.65
2.50
MSD1514-224KE_
220 ±10% 0.261 0.287
2.30
>0.99
0.70
2.85
3.20 3.50
1.10
1.70
MSD1514-334KE_
330 ±10% 0.334 0.367
2.10
>0.99
0.80
2.33
2.61 2.83
0.98
1.55
MSD1514-474KE_
470 ±10% 0.500 0.550
1.65
>0.99
1.2
1.95
2.20 2.40
0.77
1.30
MSD1514-105KE_
1000 ±10% 1.12
1.25
1.10
>0.99
2.0
1.34
1.50 1.63
0.55
0.77
1. When ordering, please specify termination and packaging codes:
Coupled Inductor Core and Winding Loss Calculator
MSD1514-105KED
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: D= 13″ machine-ready reel. EIA-481 embossed plastic
tape (175 parts per full reel).
B= Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge),
use code letter D instead.
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. 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.
6. Equal current when applied to each winding simultaneously that
causes a 40°C temperature rise from 25°C ambient.
Click for temperature derating information.
7. 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.
Click for temperature derating information.
8. Electrical specifications at 25°C.
Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.”
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
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.
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 1308-2 Revised 05/06/16
© Coilcraft Inc. 2016
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 1308-3
MSD1514 Coupled Inductors
Typical L vs Current
Typical L vs Frequency
10,000
10,000
1000 µH
470 µH
470 µH
220 µH
100
220 µH
1000
1000 µH
Inductance (µH)
Inductance (µH)
1000
100 µH
47 µH
22 µH
10
100 µH
47 µH
22 µH
100
10 µH
4.7 µH
10
10 µH
4.7 µH
1
0.1
10
1
100
1
0.1
10
1
Current (A)
100
Frequency (MHz)
0.590 ±0.197
15,0 ±0,50
123
X
0.590 ±0.197
15,0 ±0,50
Dash number
1
Dot indicates pin1
L1
2
L2
4
3
Internal code
1:1
0.559
max*
14,20
0.130
3,3
0.012
min
0,30
0.220
5,6
4
1
3
2
0.165
4,2
0.074
1,9
0.331
8,2
0.091
2,3
3
2
4
1
0.236
6,0
0.311
7,9
Recommended
Land Pattern
* For optional tin-lead and tin-silver-copper
terminations, dimensions are for the mounted
part. Dimensions before mounting can be
an additional 0.012 inch (0,3 mm).
Dimensions are in
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
inches
mm
Document 1308-3 Revised 05/06/16
© Coilcraft Inc. 2016
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.