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介绍
规格
环境
性能曲线
原理图
物理特性
卷装
焊接/清洗

MSC1278 Series

Coupled SEPIC Inductors

Coilcraft's MSC1278 Series of loosely coupled inductors were designed for SEPIC applications where loose coupling is desired. They are magnetically shielded to minimize EMI and feature high saturation current ratings above 10 Amps. Low DC resistance provides high efficiency.

Loosely coupled inductors, designed for SEPIC applications
See Selecting inductors for SEPIC
Saturation current rating up to 10.66 Amps!
Low DC resistance provides high efficiency
500 Vrms winding-to-winding isolation
RoHS-compliant. 260°C compatible. Matte tin over nickel over phos bronze terminations
COTS Plus tin-silver-copper and tin-lead terminations available

立即购买:

零件号

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计数	单价
1	$1.59
250	$1.32
500	$1.13
1000	$0.95
2500	$0.85
5000	$0.77

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

L = Matte tin over nickel

Packaging

D = 13" 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 (%)	DCR max (Ω) 3	隔离电压 (V)	漏电感 (µH) 5	匝数比
零件号 1 (Hover for schematics)	电感 (µH) 2	公差 (%)	DCR max (Ω) 3	隔离电压 (V)	漏电感 (µH) 5	匝数比
MSC1278-103ML_	10	20	0.058	500	2.8	1 : 1
MSC1278-223KL_	22	10	0.096	500	5.9	1 : 1
MSC1278-333KL_	33	10	0.15	500	10	1 : 1
MSC1278-473KL_	47	10	0.18	500	15	1 : 1

SEPIC应用

零件号 1 (Hover for schematics)	电感 (µH) 2	公差 (%)	DCR max (Ω) 3	SRF typ (MHz) 4	耦合系数	漏电感 (µH) 5	Isat (A) 6			Irms (A)
零件号 1 (Hover for schematics)	电感 (µH) 2	公差 (%)	DCR max (Ω) 3	SRF typ (MHz) 4	耦合系数	漏电感 (µH) 5	10% drop	20% drop	30% drop	两个绕组 7	一个绕组 8
MSC1278-103ML_	10	20	0.058	20.0	0.8	2.8	8.8	10.0	10.7	2.6	3.6
MSC1278-223KL_	22	10	0.096	12.0	0.82	5.9	6.0	6.8	7.3	2.0	2.8
MSC1278-333KL_	33	10	0.15	9.5	0.85	10	5.5	6.1	6.5	1.6	2.3
MSC1278-473KL_	47	10	0.18	7.8	0.83	15	3.7	4.3	4.6	1.5	2.1

注释

When ordering, please specify termination and packaging codes: e.g. MSC1278-105KLD
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.
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.
SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. Details
Leakage Inductance is for L1 and is measured with L2 shorted.
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. Details
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.

端子:

L = RoHS compliant matte tin over nickel over phos bronze.
T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
S = non-RoHS tin-lead (63/37). (Special order, added cost)

包装:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (500 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. 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 D.

环境

环境:

符合RoHS

环境温度范围:

–40°C to +85°C with Irms current, +85°C to +125°C with derated 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

性能曲线

Inductance vs. Current

Inductance vs. Frequency

原理图

物理特性

卷装规格

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
500	330	100	13	30,4	24,4	24	16	4	2	8,1	0,4

一般规格

核心材料:

Ferrite

重量:

3.7 - 4.4 g

包装:

500/13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 8.1 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。

PCB清洗:

Tested with pure water or alcohol only. More info.

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