LPR4012 Series

Coupled Inductors for Step-Up & Flyback Applications

This is a new halogen free version recommended for new designs. Only the termination material and part number have changed. The previous version is available only to current customers.

Coilcraft LPR4012 Series low-profile 1:N coupled power inductors are ideal for a variety of voltage step-up and step-down applications, including low voltage step-up in energy harvesting designs. They offer excellent coupling coefficient (K > 0.95) and 100 Vrms, one-minute isolation (hipot) between windings.

Perfect for low voltage step-up in energy harvesting applications
Different turns ratios for a variety of voltage step-up and step-down applications.
Coupled, low profile shielded power inductor – only 1,1 mm high, 4 mm square
Uses: flyback transformers in DC-DC converters; coupled inductors in buck regulators to provide multiple outputs; autotransformers

立即购买:

零件号

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计数	单价
1	$1.10
250	$0.99
500	$0.83
1000	$0.69
2000	$0.60
5000	$0.52

对于大批量采购或非库存产品，点击这里请求报价。

Tolerance

M = 20%

Termination

R = Matte tin over nickel over silver

Packaging

C = 7" machine-ready reel

. 现货，可今天发货.

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零件号

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规格

Electrical specifications at 25°C.

反激式应用

零件号 1 (Hover for schematics)	电感 (µH) 2 (公差: ±20%)	DCR (Ω) 3		隔离电压 (V)	匝数比
零件号 1 (Hover for schematics)	电感 (µH) 2 (公差: ±20%)	L1 max	L2 max	隔离电压 (V)	匝数比
LPR4012-202AMR_	2.0	0.24	0.33	100	1 : 1.5
LPR4012-202BMR_	2.0	0.24	0.48	100	1 : 2
LPR4012-202DMR_	2.0	0.24	1.2	100	1 : 3
LPR4012-202LMR_	2.0	0.24	11.6	100	1 : 10
LPR4012-103BMR_	10	0.60	1.6	100	1 : 2
LPR4012-103DMR_	10	0.60	3.7	100	1 : 3
LPR4012-223BMR_	22	1.2	3.7	100	1 : 2
LPR4012-223DMR_	22	1.2	7.1	100	1 : 3

SEPIC应用

零件号 1 (Hover for schematics)	电感 (µH) 2 (公差: ±20%)	DCR max (Ω) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
零件号 1 (Hover for schematics)	电感 (µH) 2 (公差: ±20%)	L1	L2	SRF typ (MHz) 4	10% drop	20% drop	30% drop	Irms (A) 6
LPR4012-202AMR_	2.0	0.24	0.33	61.5	1.7	1.7	1.7	1.5
LPR4012-202BMR_	2.0	0.24	0.48	49.4	1.7	1.7	1.7	1.5
LPR4012-202DMR_	2.0	0.24	1.2	31.0	1.7	1.7	1.7	1.5
LPR4012-202LMR_	2.0	0.24	11.6	7.4	1.7	1.7	1.7	1.5
LPR4012-103BMR_	10	0.60	1.6	19.5	0.62	0.64	0.65	0.70
LPR4012-103DMR_	10	0.60	3.7	12.8	0.62	0.64	0.65	0.70
LPR4012-223BMR_	22	1.2	3.7	11.2	0.43	0.45	0.46	0.57
LPR4012-223DMR_	22	1.2	7.1	8.0	0.43	0.45	0.46	0.57

注释

When ordering, please specify termination and packaging codes: e.g. LPR4012-223DMRC
Inductance is measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator
SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
Isat: DC current applied to L1 at which the inductance drops the specified amount from its value without current.
Irms: Current applied to L1 that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Determine temperature rise.

端子:

R = Matte tin over nickel over silver.
Q = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
P = non-RoHS tin-lead (63/37). (Special order, added cost)

包装:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3500 parts per full reel).
B = 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.

环境

环境:

符合RoHS , 无卤素

环境温度范围:

−40°C to +85°C with Irms current.

储存温度范围:

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

最高元件温度:

+125°C (Ambient + temperature rise)

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

原理图

物理特性

卷装规格

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
1000	3500*	178/330	60/100	13	18,4	12,4	12	8	4	2	1,45	0,25

* Special order

一般规格

核心材料:

Ferrite

重量:

54 - 64 mg

包装:

1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide, 0.25 mm thick, 8 mm pocket spacing, 1.45 mm pocket depth

焊接/清洗

湿气敏感度等级（MSL）:

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

抗焊接热:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

焊接之前，请参阅焊接线艺元件。

推荐的取放吸嘴:

OD: 4 mm; ID: ≤ 2 mm

PCB清洗:

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

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