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Shielded Coupled Power Inductors
LPD4012 Series

These are new halogen-free parts, recommended for new designs. They are identical in form, fit and function to the old LPD4012 parts. Existing customers will continue to be supported. (View old data sheet here.)

SPECIFICATIONS


Part number1
Click to get parts
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
LPD4012-331NR_ 0.33 ±30% 0.042 255 0.94 0.06 5.2 5.4 5.6 1.87 2.65
LPD4012-561NR_ 0.56 ±30% 0.087 185 0.95 0.08 3.7 3.8 3.9 1.30 1.84
LPD4012-821NR_ 0.82 ±30% 0.100 130 0.97 0.09 3.2 3.3 3.4 1.21 1.72
LPD4012-152NR_ 1.5 ±30% 0.185 86 0.97 0.11 2.50 2.81 2.91 1.15 1.62
LPD4012-222NR_ 2.2 ±30% 0.235 70 0.98 0.14 2.30 2.40 2.50 0.95 1.35
LPD4012-332NR_ 3.3 ±30% 0.320 48 0.98 0.16 1.80 1.90 2.00 0.75 1.06
LPD4012-472MR_ 4.7 ±20% 0.500 39 0.98 0.18 1.70 1.80 1.90 0.65 0.92
LPD4012-562MR_ 5.6 ±20% 0.620 32 0.99 0.20 1.60 1.70 1.80 0.55 0.78
LPD4012-682MR_ 6.8 ±20% 0.530 31 0.99 0.22 1.20 1.52 1.63 0.60 0.86
LPD4012-822MR_ 8.2 ±20% 0.600 29 0.99 0.24 1.10 1.20 1.30 0.55 0.78
LPD4012-103MR_ 10 ±20% 0.750 25 0.99 0.26 0.98 1.00 1.10 0.50 0.71
LPD4012-153MR_ 15 ±20% 1.13 21 0.99 0.30 0.90 0.92 0.93 0.43 0.60
LPD4012-223MR_ 22 ±20% 1.63 15 0.99 0.34 0.70 0.82 0.84 0.34 0.48
LPD4012-333MR_ 33 ±20% 1.83 12 >0.99 0.41 0.37 0.57 0.58 0.31 0.44
LPD4012-473MR_ 47 ±20% 2.52 8.8 >0.99 0.51 0.33 0.39 0.40 0.28 0.39
LPD4012-683MR_ 68 ±20% 3.23 7.8 >0.99 0.66 0.27 0.36 0.37 0.25 0.36
LPD4012-823MR_ 82 ±20% 3.66 7.3 >0.99 0.75 0.27 0.27 0.29 0.23 0.31
LPD4012-104MR_ 100 ±20% 4.76 6.1 >0.99 0.86 0.22 0.28 0.29 0.20 0.27
LPD4012-124MR_ 120 ±20% 5.54 5.3 >0.99 0.98 0.21 0.26 0.27 0.19 0.27
LPD4012-154MR_ 150 ±20% 6.90 4.6 >0.99 1.19 0.18 0.26 0.27 0.17 0.23
LPD4012-184MR_ 180 ±20% 8.75 4.1 >0.99 1.40 0.16 0.21 0.23 0.14 0.18
LPD4012-224MR_ 220 ±20% 11.24 3.3 >0.99 1.66 0.15 0.16 0.17 0.12 0.17
LPD4012-334MR_ 330 ±20% 17.00 2.8 >0.99 2.45 0.13 0.16 0.16 0.10 0.14
1 When ordering, please specify termination and packaging codes: e.g. LPD4012-564MRC
  Termination: R = Matte tin over nickel over silver
Special order, added cost: Q = RoHS tin-silver-copper (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. 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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Updated: December 05, 2017