Specifications subject to change without notice.

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© 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.

Coupled Inductors for SEPIC - LPD3015 Series

Document 661-2 Revised 07/13/16

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 D 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

Irms (A)

10%

20%

30%

both

one

±20% (µH)

(Ohms)

(MHz)

typ

(µH)

drop

drop

drop

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

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.