Coupled Power Inductors
LPD3015 Series
| These parts are not recommended for new designs. They are replaced by new halogen free versions which are identical in form, fit and function. Go to new data page. |
- Low profile miniature power inductor – only 1,4 mm high, 3 mm square
- Shielded coupled inductors for Flyback, SEPIC, Ćuk, Zeta and other applications
- See Selecting inductors for SEPIC and SEPIC Inductor Selector tool
- Excellent coupling coefficient: >0.95 for most values
- Also suitable for use as common mode chokes
- 100 V winding-to-winding isolation
- RoHS-compliant, halogen free. 260°C compatible. Silver-palladium-platinum-glass frit terminations
- COTS Plus tin-silver-copper and tin-lead terminations available
SPECIFICATIONS
L vs
Frequency
L vs CurrentCore loss
Schematics
Dimensions 
Tape and reel specifications
3D model 
S-Parameters
| Part number1 | Inductance2 ±20% (µH) |
DCR max3 (Ohms) |
SRF typ4 (MHz) |
Coupling coefficient typ |
Leakage5 L typ (µH) |
Isat (A)6 | Irms (A) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 10% drop |
20% drop |
30% drop |
both windings7 |
one winding8 |
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| LPD3015-391ML_ | 0.39 | 0.071 | 289 | 0.89 | 0.08 | 3.2 | 3.3 | 3.4 | 1.45 | 2.05 |
| LPD3015-561ML_ | 0.56 | 0.079 | 235 | 0.93 | 0.08 | 2.7 | 2.8 | 2.8 | 1.37 | 1.94 |
| LPD3015-102ML_ | 1.0 | 0.129 | 160 | 0.95 | 0.09 | 2.0 | 2.1 | 2.2 | 1.08 | 1.52 |
| LPD3015-152ML_ | 1.5 | 0.204 | 140 | 0.96 | 0.11 | 1.6 | 1.7 | 1.8 | 0.86 | 1.20 |
| LPD3015-182ML_ | 1.8 | 0.273 | 135 | 0.96 | 0.13 | 1.5 | 1.6 | 1.6 | 0.78 | 1.10 |
| LPD3015-222ML_ | 2.2 | 0.300 | 110 | 0.97 | 0.14 | 1.5 | 1.6 | 1.6 | 0.75 | 1.05 |
| LPD3015-332ML_ | 3.3 | 0.337 | 90 | 0.98 | 0.16 | 1.0 | 1.1 | 1.2 | 0.67 | 0.94 |
| LPD3015-472ML_ | 4.7 | 0.503 | 79 | 0.98 | 0.18 | 0.86 | 0.87 | 0.88 | 0.54 | 0.76 |
| LPD3015-682ML_ | 6.8 | 0.622 | 58 | 0.99 | 0.22 | 0.77 | 0.78 | 0.79 | 0.49 | 0.69 |
| LPD3015-103ML_ | 10 | 1.040 | 48 | 0.99 | 0.28 | 0.58 | 0.59 | 0.60 | 0.38 | 0.53 |
| LPD3015-153ML_ | 15 | 1.420 | 35 | 0.99 | 0.37 | 0.49 | 0.50 | 0.51 | 0.32 | 0.46 |
| LPD3015-183ML_ | 18 | 1.550 | 33 | 0.99 | 0.42 | 0.46 | 0.47 | 0.48 | 0.31 | 0.44 |
| LPD3015-223ML_ | 22 | 1.89 | 30 | 0.99 | 0.48 | 0.42 | 0.43 | 0.44 | 0.28 | 0.40 |
| LPD3015-333ML_ | 33 | 2.84 | 23 | 0.99 | 0.63 | 0.34 | 0.35 | 0.36 | 0.23 | 0.32 |
| LPD3015-473ML_ | 47 | 4.03 | 17 | 0.99 | 0.81 | 0.28 | 0.29 | 0.30 | 0.19 | 0.27 |
| LPD3015-683ML_ | 68 | 6.11 | 14 | 0.99 | 1.13 | 0.24 | 0.25 | 0.26 | 0.16 | 0.22 |
| LPD3015-104ML_ | 100 | 8.54 | 11 | 0.99 | 1.50 | 0.20 | 0.21 | 0.22 | 0.13 | 0.19 |
| LPD3015-124ML_ | 120 | 9.23 | 9.0 | 0.99 | 1.76 | 0.19 | 0.20 | 0.20 | 0.13 | 0.18 |
| LPD3015-154ML_ | 150 | 12.40 | 8.0 | 0.99 | 2.22 | 0.16 | 0.17 | 0.18 | 0.11 | 0.16 |
| LPD3015-184ML_ | 180 | 15.32 | 7.5 | 0.99 | 2.79 | 0.15 | 0.16 | 0.17 | 0.10 | 0.14 |
| LPD3015-224ML_ | 220 | 18.56 | 6.0 | 0.99 | 3.56 | 0.13 | 0.14 | 0.15 | 0.09 | 0.13 |
| LPD3015-334ML_ | 330 | 27.70 | 5.0 | 0.99 | 5.18 | 0.11 | 0.12 | 0.12 | 0.07 | 0.10 |
| 1 | When ordering, please specify termination and packaging codes: e.g. LPD3015-334MLC | |
| Termination: | L = Silver-palladium-platinum-glass frit Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or S = 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. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator. | |
| 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 | Isat: 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. | |
| 7 | Irms, both windings: 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. Determine temperature rise. | |
| 8 |
Irms, one winding:
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. Determine temperature rise. |
|
| 9 | Ambient temperature range: | −40°C to +85°C with Irms current. |
| 10 | Storage temperature range: | Component: −40°C to +125°C Tape and reel packaging: −40°C to +80°C |
| 11 | Maximum part temperature: +125°C (Ambient + temperature rise) | |
| 12 | Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. | |
| 13 | Electrical specifications at 25°C. | |
| Refer to Soldering Coilcraft Components before soldering. | ||
| PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info. | ||
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