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Taiwan
China
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+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
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+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Document 528-1
Document 528-1 Revised 11/09/15
Shielded Coupled Inductors
MSD1260
Dimensions are in inches
mm
Recommended
Land Pattern
0.217
5,5
0.177
4,5
0.157
4,0
0.079
2,0
1
4
2
3
3
12
4
L1
L2
123
X
0.197
5,0
0.059
1,5
0.197
5,0
0.138
3,5
0.484
12,3 max
0.484
12,3 max Dash number
Internal code
1
4
2
3
0.236 ±0.008
6,0 ±0,2
Dot indicates pin1
*
Foroptional tin-lead and tin-silver-copper
terminations,dimensions are forthe mounted
part. Dimensions before mounting can be
an additional 0.012 inch (0,3 mm).
*
• Tight coupling (k ≥ 0.98)
• 500 Vrms, one minute isolation (hipot) between windings
• Ideal for use in a variety of circuits including flyback, multi-output
buck, SEPIC and Zeta.
• High inductance, high efficiency and excellent current handling
• Can also be used as two single inductors connected in series
or parallel, as a common mode choke or as a 1 : 1 transformer.
L1 L2
++
–
–
D
C
C
Typical Flyback Converter
VOUT
V
IN
SW
L1
L2
++
+
––
–
D
D
C
C
SW
Typical Buck Converter with auxiliary output
VOUT
VOUTAU
X
V
IN
Typical Zeta schematic
VOUT
V
IN L1
L2
QC1
CC
++
––
D
Typical SEPIC schematic
VOUT
V
IN
L1
L2
Q
C1
C
C
++
––
D
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Shielded Coupled Inductors – MSD1260 Series
Document 528-2 Revised 11/09/15
Document 528-2
Coupling Leakage
Irms (A)
Inductance2 DCR max3
SRF typ4 coefficient
Inductance5
Isat6 both one
Part number1 (µH) (Ohms) (MHz) typ typ (µH) (A) windings7 winding8
MSD1260-472ML_ 4.7 ±20% 0.036 32.0 0.98 0.20 10.3 3.16 4.47
MSD1260-562ML_ 5.6 ±20% 0.040 31.0 0.98 0.20 9.66 3.00 4.24
MSD1260-682ML_ 6.8 ±20% 0.048 28.0 0.98 0.24 9.21 2.75 3.88
MSD1260-822ML_ 8.2 ±20% 0.052 25.0 0.98 0.25 8.55 2.63 3.72
MSD1260-103ML_ 10 ±20% 0.060 22.0 0.99 0.26 7.40 2.45 3.46
MSD1260-123ML_ 12 ±20% 0.074 21.0 0.99 0.28 6.86 2.21 3.12
MSD1260-153ML_ 15 ±20% 0.085 17.6 0.99 0.32 6.09 2.06 2.92
MSD1260-183ML_ 18 ±20% 0.097 17.0 0.99 0.40 5.30 1.93 2.73
MSD1260-223ML_ 22 ±20% 0.116 15.0 0.98 0.68 5.01 1.76 2.49
MSD1260-273ML_ 27 ±20% 0.124 13.6 0.99 0.50 4.66 1.70 2.41
MSD1260-333ML_ 33 ±20% 0.134 12.7 0.99 0.65 4.22 1.64 2.32
MSD1260-393ML_ 39 ±20% 0.142 11.7 0.99 1.09 3.80 1.59 2.25
MSD1260-473ML_ 47 ±20% 0.174 8.7 0.99 0.80 3.25 1.44 2.03
MSD1260-563ML_ 56 ±20% 0.198 7.6 0.99 0.75 3.07 1.35 1.91
MSD1260-683ML_ 68 ±20% 0.216 6.1 >0.99 0.57 2.83 1.29 1.83
MSD1260-823ML_ 82 ±20% 0.274 5.3 0.99 1.52 2.55 1.15 1.62
MSD1260-104ML_ 100 ±20% 0.322 5.0 0.99 1.41 2.20 1.06 1.50
MSD1260-124KL_ 120 ±10% 0.418 4.4 0.99 1.34 2.05 0.93 1.31
MSD1260-154KL_ 150 ±10% 0.476 4.0 0.99 1.52 1.82 0.87 1.23
MSD1260-184KL_ 180 ±10% 0.536 3.6 0.99 1.80 1.60 0.82 1.16
MSD1260-224KL_ 220 ±10% 0.691 3.2 >0.99 1.60 1.51 0.72 1.02
MSD1260-274KL_ 270 ±10% 0.806 2.8 >0.99 2.23 1.41 0.67 0.95
MSD1260-334KL_ 330 ±10% 1.09 2.5 >0.99 2.39 1.28 0.57 0.81
MSD1260-394KL_ 390 ±10% 1.20 2.3 >0.99 3.72 1.16 0.55 0.77
MSD1260-474KL_ 470 ±10% 1.59 2.1 >0.99 2.89 1.00 0.48 0.67
MSD1260-564KL_ 560 ±10% 1.81 2.0 >0.99 2.55 0.95 0.45 0.63
MSD1260-684KL_ 680 ±10% 2.06 1.8 >0.99 5.76 0.88 0.42 0.59
MSD1260-824KL_ 820 ±10% 2.65 1.5 >0.99 2.86 0.79 0.37 0.52
MSD1260-105KL_ 1000 ±10% 3.06 1.2 >0.99 4.32 0.69 0.34 0.49
1. When ordering, please specify termination and packaging codes:
MSD1260-105KLD
Termination: L = RoHS compliant matte tin over nickel over phos
bronze.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (500 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.
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.
5. Leakage Inductance is for L1 and is measured with L2 shorted.
6. 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.
7. Equal current when applied to each winding simultaneously that causes
a 40°C temperature rise from 25°C ambient. This information is for refer-
ence 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 tem-
perature rise from 25°C ambient. This information is for reference only
and does not represent absolute maximum ratings. To predict tempera-
ture rise go to online calculator.
9. 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.
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Shielded Coupled Inductors – MSD1260 Series
Document 528-3 Revised 11/09/15
Typical L vs FrequencyTypical L vs Current
Document 528-3
1
10
100
1000
10000
0.1 110010
Inductance (µH)
Current (A)
-104
-103
-472
-473
-105
-474
1
10
100
1000
10000
0.01 0.1
10
1
Inductance (µH)
Frequency (MHz)
-104
-103
-472
-473
-105
-474
Core material Ferrite
Core and winding loss Go to online calculator
Terminations RoHS compliant matte tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight: 2.8 – 3.2 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 500 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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 500/13″ reel; Plastic tape: 24 mm wide, 0.35 mm thick,
16 mm pocket spacing, 6.6 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Coilcraft:
MSD1260-824KLB MSD1260-104MLD MSD1260-564KLD MSD1260-105KLD MSD1260-273MLD MSD1260-
393MLB MSD1260-562MLB MSD1260-183MLD MSD1260-154KLB MSD1260-153MLD MSD1260-124KLB
MSD1260-334KLD MSD1260-563MLD MSD1260-823MLB MSD1260-472MLD MSD1260-223MLB MSD1260-
123MLB MSD1260-154KLD MSD1260-224KLB MSD1260-682MLB MSD1260-822MLD MSD1260-224KLD
MSD1260-105KLB MSD1260-684KLD MSD1260-473MLB MSD1260-124KLD MSD1260-334KLB MSD1260-273MLB
MSD1260-153MLB MSD1260-103MLD MSD1260-184KLD MSD1260-274KLB MSD1260-474KLB MSD1260-
183MLB MSD1260-683MLB MSD1260-473MLD MSD1260-274KLD MSD1260-333MLD MSD1260-824KLD
MSD1260-394KLB MSD1260-563MLB MSD1260-562MLD MSD1260-822MLB MSD1260-393MLD MSD1260-
184KLB MSD1260-684KLB MSD1260-223MLD MSD1260-333MLB MSD1260-683MLD MSD1260-474KLD
MSD1260-564KLB MSD1260-394KLD MSD1260-104MLB MSD1260-103MLB MSD1260-682MLD MSD1260-
472MLB MSD1260-123MLD MSD1260-823MLD
