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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

LPD8035V High-Isolation Miniature Coupled Inductor

LPD8035V Series

High-Isolation Miniature Coupled Inductors

Coilcraft LPD8035V Series surface-mount 1:1 coupled power inductors feature higher isolation and are suitable for Flyback, SEPIC, Cuk, Zeta and other applications. Their compact, low-profile design and magnetic shielding make them ideal for high-density circuits.

1500 Vrms, one minute isolation (hipot) between windings
Provides functional insulation
Low-profile design with smaller footprint than MSD Family
Ideal for Flyback, Fly-buck^TM, SEPIC, Ćuk, Zeta and other applications
Magnetically shielded to minimize EMI
AEC-Q200 Grade 3 (−40°C to +85°C) with a 125°C max part temperature

LPD8035V-333: Designed in TI’s LM5160 and LM5017 Fly-Buck™ reference designs:
PMP15005 and PMP15006

Learn more about TI’s Multi-Output Fly-Buck Regulator from this article on How2Power.com

Learn more about Fly-Buck^TM Coupled Inductors

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Part number

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Count	Unit price
1	$4.29
100	$4.21
350	$3.16
700	$1.90
1400	$1.46
2800	$1.26
5000	$1.14

For high volume or non-stock items, request a quote.

Tolerance

M = 20%

Termination

R = Matte tin over nickel over silver

Packaging

C = 7" machine-ready reel

. in stock, ready to ship today.

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Part number

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Designer's Kit:

Kit	Values	Price
C481	19 (3 of each)	$70.00

Specifications

Electrical specifications at 25°C.

For Flyback Applications

Part number 1 (Hover for schematics)	Inductance (µH) 2 (Tolerance: ±20%)	DCR (Ω) 3		Isolation Voltage (V) 4	Leakage Inductance (nH) 6	Turns Ratio
Part number 1 (Hover for schematics)	Inductance (µH) 2 (Tolerance: ±20%)	typ	max	Isolation Voltage (V) 4	Leakage Inductance (nH) 6	Turns Ratio
LPD8035V-472MR_	4.7	0.12	0.14	1500	150	1 : 1
LPD8035V-562MR_	5.6	0.13	0.15	1500	180	1 : 1
LPD8035V-822MR_	8.2	0.16	0.19	1500	210	1 : 1
LPD8035V-103MR_	10	0.17	0.19	1500	250	1 : 1
LPD8035V-223MR_	22	0.33	0.36	1500	305	1 : 1
LPD8035V-333MR_	33	0.62	0.66	1500	350	1 : 1
LPD8035V-473MR_	47	0.67	0.70	1500	410	1 : 1
LPD8035V-563MR_	56	0.75	0.78	1500	440	1 : 1
LPD8035V-683MR_	68	0.85	0.89	1500	475	1 : 1
LPD8035V-823MR_	82	0.95	0.98	1500	510	1 : 1
LPD8035V-104MR_	100	1.3	1.5	1500	565	1 : 1
LPD8035V-124MR_	120	1.6	1.7	1500	775	1 : 1
LPD8035V-154MR_	150	1.8	1.9	1500	820	1 : 1

For SEPIC Applications

Part number 1 (Hover for schematics)	Inductance (µH) 2 (Tolerance: ±20%)	DCR (Ω) 3		SRF typ (MHz) 5	Coupling coefficient	Leakage Inductance (nH) 6	Isat (A) 7	Irms (A)
Part number 1 (Hover for schematics)	Inductance (µH) 2 (Tolerance: ±20%)	typ	max	SRF typ (MHz) 5	Coupling coefficient	Leakage Inductance (nH) 6	Isat (A) 7	both windings 8	one winding 9
LPD8035V-472MR_	4.7	0.12	0.14	45.6	0.97	150	2.7	1.2	1.6
LPD8035V-562MR_	5.6	0.13	0.15	41.4	0.97	180	2.5	1.0	1.5
LPD8035V-822MR_	8.2	0.16	0.19	31.1	0.97	210	2.0	0.95	1.4
LPD8035V-103MR_	10	0.17	0.19	28.8	0.98	250	2.0	0.92	1.3
LPD8035V-223MR_	22	0.33	0.36	18.0	0.98	305	1.3	0.63	0.89
LPD8035V-333MR_	33	0.62	0.66	13.2	0.99	350	1.0	0.52	0.73
LPD8035V-473MR_	47	0.67	0.70	12.4	0.99	410	0.54	0.47	0.67
LPD8035V-563MR_	56	0.75	0.78	11.5	0.99	440	0.49	0.42	0.60
LPD8035V-683MR_	68	0.85	0.89	10.9	0.99	475	0.45	0.40	0.57
LPD8035V-823MR_	82	0.95	0.98	10.0	0.99	510	0.42	0.38	0.54
LPD8035V-104MR_	100	1.3	1.5	9.6	0.99	565	0.39	0.31	0.44
LPD8035V-124MR_	120	1.6	1.7	8.7	0.99	775	0.35	0.30	0.42
LPD8035V-154MR_	150	1.8	1.9	7.6	0.99	820	0.31	0.28	0.39

Notes

When ordering, please specify packaging code: e.g. LPD8035V-154MEC
Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
For SEPIC: When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value
DCR is for each winding. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
For SEPIC: When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value.
Designed to provide Functional Insulation only; does not protect against electrical shock; nor intended for the isolation of SELV circuits from Hazardous Voltage circuits measured from primary to secondary for one minute.
SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
Leakage inductance is for L1 and is measured with L2 shorted.
Isat: 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.
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.
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.

Termination:

RoHS compliant matte tin over nickel over silver.

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (350 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

−40°C to +85°C with Irms current

Storage temperature range:

Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C

Maximum part temperature:

+125°C (Ambient + temperature rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Inductance vs Current

Inductance vs Frequency

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
350	1500*	178/330	60/100	13	18,4	12,4	16	12	4	2	3,68	0,35

General specification

Core Material:

Ferrite

Weight:

210 – 225 mg

Packaging:

350/7″ reel; 1500/13″ reel Plastic tape: 16 mm wide, 0.35 mm thick, 12 mm pocket spacing, 3.68 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

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.

Refer to Soldering Coilcraft Components before soldering.

Recommended Pick & Place Nozzle:

OD: 6.2 mm; ID: ≤ 3.1 mm

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

LPD8035V Series

High-Isolation Miniature Coupled Inductors