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China
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+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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.
Specifications subject to change without notice.
Please check our website for latest information.
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. 2018
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 661-1 Revised 01/24/18
Document 661-1
0.118 ±0.003
3,00 ±0,076
0.118 ±0.003
3,00 ±0,076
0.055 ±0.004
1,4 ±0,1
Dash
number Internal
code
XXX X
Dot indicates pin 1
14
23
0.039
0,99
0.130
3,30
0.094
2,38
0.094
2,38
0.040
1,02
0.040
1,02
0.130
3,30
0.022
0,54
45°
typ
14
23
*
Dimensions are of the case not including
the termination. For maximum overall
dimensions including the termination, add
0.005 in/0.13 mm.
For optional tin-lead and tin-silver-copper
terminations, dimensions are for the
mounted part. Dimensions before mounting
can be an additional 0.005 in/0.13 mm.
*
*
*
Dimensions are in inches
mm
2
14
3
L1
L2
Shielded Coupled Inductors LPD3015
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
• Only 1.4 mm high and 3 mm square
• Ideal for use in flyback, multi-output buck, SEPIC and Zeta
applications.
• High inductance, high efficiency and excellent current
handling
• Can also be used as two single inductors connected in
series or parallel or as a common mode choke.
Specifications subject to change without notice.
Please check our website for latest information.
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. 2018
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.
Coupled Inductors for SEPIC - LPD3015 Series
Document 661-2 Revised 01/24/18
Document 661-2
1. When ordering, please specify termination and packaging codes:
LPD3015-334MRC
Termination: R = Matte tin over nickel over silver
Special order, added cost: Q = RoHS tin-silver-cop-
per (95.5/4/0.5) or P = non-RoHS tin-lead (63/37)
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (1000 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 C instead.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (3500 parts
per 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. 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. DC current at 25°C that causes the specified inductance drop 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 reference only and does not represent absolute maximum ratings.
8. 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.
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.
Coupling Leakage Isat (A)6 Irms (A)
Inductance2 DCR max3 SRF typ4 coefficient
L typ5 10% 20% 30% both one
Part number1 ±20% (µH) (Ohms) (MHz) typ (µH) drop drop drop windings7
winding8
LPD3015-391MR_ 0.39 0.071 289 0.89 0.08 3.2 3.3 3.4 1.45 2.05
LPD3015-561MR_ 0.56 0.079 235 0.93 0.08 2.7 2.8 2.8 1.37 1.94
LPD3015-102MR_ 1.0 0.129 160 0.95 0.09 2.0 2.1 2.2 1.08 1.52
LPD3015-152MR_ 1.5 0.204 140 0.96 0.11 1.6 1.7 1.8 0.86 1.20
LPD3015-182MR_ 1.8 0.273 135 0.96 0.13 1.5 1.6 1.6 0.78 1.10
LPD3015-222MR_ 2.2 0.300 110 0.97 0.14 1.5 1.6 1.6 0.75 1.05
LPD3015-332MR_ 3.3 0.337 90 0.98 0.16 1.0 1.1 1.2 0.67 0.94
LPD3015-472MR_ 4.7 0.503 79 0.98 0.18 0.86 0.87 0.88 0.54 0.76
LPD3015-682MR_ 6.8 0.622 58 0.98 0.22 0.77 0.78 0.79 0.49 0.69
LPD3015-103MR_ 10 1.040 48 0.99 0.28 0.58 0.59 0.60 0.38 0.53
LPD3015-153MR_ 15 1.420 35 0.99 0.37 0.49 0.50 0.51 0.32 0.46
LPD3015-183MR_ 18 1.550 33 0.99 0.42 0.46 0.47 0.48 0.31 0.44
LPD3015-223MR_ 22 1.89 30 0.99 0.48 0.42 0.43 0.44 0.28 0.40
LPD3015-333MR_ 33 2.84 23 0.99 0.63 0.34 0.35 0.36 0.23 0.32
LPD3015-473MR_ 47 4.03 17 0.99 0.81 0.28 0.29 0.30 0.19 0.27
LPD3015-683MR_ 68 6.11 14 0.99 1.13 0.24 0.25 0.26 0.16 0.22
LPD3015-104MR_ 100 8.54 11 0.99 1.50 0.20 0.21 0.22 0.13 0.19
LPD3015-124MR_ 120 9.23 9.0 0.99 1.76 0.19 0.20 0.20 0.13 0.18
LPD3015-154MR_ 150 12.40 8.0 0.99 2.22 0.16 0.17 0.18 0.11 0.16
LPD3015-184MR_ 180 15.32 7.5 0.99 2.79 0.15 0.16 0.17 0.10 0.14
LPD3015-224MR_ 220 18.56 6.0 0.99 3.56 0.13 0.14 0.15 0.09 0.13
LPD3015-334MR_ 330 27.70 5.0 0.99 5.18 0.11 0.12 0.12 0.07 0.10
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.
Core material Ferrite
Core and winding loss Go to online calculator
Weight 45 – 52 mg
Terminations RoHS compliant matte tin over nickel over silver.
Other terminations available at additional cost.
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 100 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 1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 1.65 mm pocket depth
Recommended pick and place nozzle OD: 3 mm; ID: ≤ 1.5 mm
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Specifications subject to change without notice.
Please check our website for latest information.
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. 2018
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.
Coupled Inductors for SEPIC - LPD3015 Series
Document 661-3 Revised 01/24/18
Document 661-3
Typical L vs Current Typical L vs Frequency
0.01 0.1
11
0
0.1
1
10
100
1000
Inductance (µH)
0.01 0.1
11
0
Current (A)
22 µH
33 µH
100 µH
220 µH
330 µH
10 µH
3.3 µH
2.2 µH
1.0 µH
0.01 0.1
11
0
0.1
1
10
100
1000
Inductance (µH)
0.01 0.1
11
0
Frequency (MHz)
22 µH
220 µH
33 µH
330 µH
10 µH
100 µH
3.3 µH
2.2 µH
1.0 µH
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Coilcraft:
LPD3015-224MLC LPD3015-391MLC LPD3015-223MLB LPD3015-683MLB LPD3015-152MLC LPD3015-104MLB
LPD3015-152MLB LPD3015-183MLC LPD3015-153MLC LPD3015-472MLC LPD3015-102MLB LPD3015-333MLC
LPD3015-184MLB LPD3015-222MLB LPD3015-182MLC LPD3015-472MLB LPD3015-154MLB LPD3015-683MLC
LPD3015-334MLC LPD3015-333MLB LPD3015-332MLB LPD3015-561MLC LPD3015-391MLB LPD3015-473MLC
LPD3015-682MLC LPD3015-224MLB LPD3015-124MLC LPD3015-103MLB LPD3015-682MLB LPD3015-104MLC
LPD3015-222MLC LPD3015-183MLB LPD3015-184MLC LPD3015-124MLB LPD3015-182MLB LPD3015-223MLC
LPD3015-154MLC LPD3015-153MLB LPD3015-332MLC LPD3015-334MLB LPD3015-561MLB LPD3015-473MLB
LPD3015-103MLC LPD3015-102MLC LPD3015-334MRB LPD3015-102MRC LPD3015-103MRB LPD3015-
103MRC LPD3015-104MRB LPD3015-104MRC LPD3015-223MRB LPD3015-334MRC LPD3015-222MRC
LPD3015-184MRB LPD3015-224MRC LPD3015-124MRB LPD3015-182MRC LPD3015-183MRC LPD3015-223MRC
LPD3015-332MRB LPD3015-391MRB LPD3015-124MRC LPD3015-224MRB LPD3015-682MRB LPD3015-
682MRC LPD3015-683MRB LPD3015-683MRC LPD3015-473MRB LPD3015-333MRB LPD3015-391MRC
LPD3015-472MRB LPD3015-472MRC LPD3015-473MRC LPD3015-561MRB LPD3015-561MRC LPD3015-182MRB
LPD3015-183MRB LPD3015-184MRC LPD3015-222MRB LPD3015-332MRC LPD3015-333MRC LPD3015-
152MRB LPD3015-152MRC LPD3015-153MRB LPD3015-153MRC LPD3015-154MRB LPD3015-154MRC
LPD3015-102MRB
