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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

MSD1278T Series

High Temperature Shielded Coupled Power Inductors

Coilcraft's MSD1278T Series of 1:1 high-temperature coupled power inductors are used in Flyback, SEPIC, Ćuk, Zeta and other applications. The MSD_T family features magnetic shielding for compact packaging and tight winding-to-winding coupling.

Ideal for Flyback, SEPIC, Ćuk, Zeta and other applications
Magnetic shielding allows high-density mounting
Tight winding coupling
Industry standard footprint
AEC-Q200 Grade 1 (−40°C to +125°C)

See Selecting inductors for SEPIC

Need parts for space, military or other critical applications?
See Coilcraft AE612PND Series | See Coilcraft ML612PND Series | See Coilcraft MS612PND Series | See Coilcraft ST612PND Series

立即购买:

零件号

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计数	单价
1	$3.06
250	$2.02
500	$1.21
1000	$0.95
2500	$0.81
5000	$0.75

对于大批量采购或非库存产品，点击这里请求报价。

Termination

L = Matte tin over nickel

Packaging

D = 13" machine-ready reel

Tolerance

M = 20%

. 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
MSD1278T-472ML_	4.7	20	0.040	500	0.22	1 : 1
MSD1278T-562ML_	5.6	20	0.046	500	0.23	1 : 1
MSD1278T-682ML_	6.8	20	0.048	500	0.22	1 : 1
MSD1278T-822ML_	8.2	20	0.055	500	0.34	1 : 1
MSD1278T-103ML_	10	20	0.058	500	0.34	1 : 1
MSD1278T-123ML_	12	20	0.062	500	0.36	1 : 1
MSD1278T-153ML_	15	20	0.072	500	0.41	1 : 1
MSD1278T-183ML_	18	20	0.080	500	0.37	1 : 1
MSD1278T-223ML_	22	20	0.096	500	0.41	1 : 1
MSD1278T-273ML_	27	20	0.12	500	0.43	1 : 1
MSD1278T-333ML_	33	20	0.15	500	0.56	1 : 1
MSD1278T-393ML_	39	20	0.16	500	0.64	1 : 1
MSD1278T-473ML_	47	20	0.18	500	0.70	1 : 1
MSD1278T-563ML_	56	20	0.19	500	0.76	1 : 1
MSD1278T-683ML_	68	20	0.21	500	0.88	1 : 1
MSD1278T-823ML_	82	20	0.28	500	0.85	1 : 1
MSD1278T-104ML_	100	20	0.30	500	0.90	1 : 1
MSD1278T-124KL_	120	10	0.41	500	1.3	1 : 1
MSD1278T-154KL_	150	10	0.46	500	1.5	1 : 1
MSD1278T-184KL_	180	10	0.51	500	0.98	1 : 1
MSD1278T-224KL_	220	10	0.69	500	1.5	1 : 1
MSD1278T-274KL_	270	10	0.90	500	1.2	1 : 1
MSD1278T-334KL_	330	10	1.0	500	4.1	1 : 1
MSD1278T-394KL_	390	10	1.1	500	1.6	1 : 1
MSD1278T-474KL_	470	10	1.5	500	0.25	1 : 1
MSD1278T-564KL_	560	10	1.7	500	2.7	1 : 1
MSD1278T-684KL_	680	10	2.3	500	2.1	1 : 1
MSD1278T-824KL_	820	10	2.6	500	2.4	1 : 1
MSD1278T-105KL_	1000	10	2.9	500	4.3	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
MSD1278T-472ML_	4.7	20	0.040	33.0	0.98	0.22	13.9	15.2	16.4	3.2	4.5
MSD1278T-562ML_	5.6	20	0.046	30.0	0.98	0.23	13.4	14.9	15.7	2.9	4.1
MSD1278T-682ML_	6.8	20	0.048	23.0	0.98	0.22	12.1	13.6	14.2	2.8	4.0
MSD1278T-822ML_	8.2	20	0.055	20.0	0.98	0.34	10.3	11.5	12.2	2.8	3.9
MSD1278T-103ML_	10	20	0.058	17.0	0.98	0.34	8.8	10.0	10.7	2.6	3.6
MSD1278T-123ML_	12	20	0.062	15.0	0.98	0.36	8.2	9.2	9.7	2.5	3.5
MSD1278T-153ML_	15	20	0.072	13.0	0.99	0.41	7.4	8.4	9.0	2.3	3.3
MSD1278T-183ML_	18	20	0.080	12.0	0.99	0.37	6.5	7.4	7.9	2.2	3.1
MSD1278T-223ML_	22	20	0.096	11.0	0.99	0.41	6.0	6.8	7.3	2.0	2.8
MSD1278T-273ML_	27	20	0.12	10.0	0.99	0.43	5.8	6.6	7.0	1.8	2.5
MSD1278T-333ML_	33	20	0.15	9.5	0.99	0.56	5.5	6.1	6.5	1.6	2.3
MSD1278T-393ML_	39	20	0.16	8.5	0.99	0.64	4.7	5.3	5.6	1.5	2.2
MSD1278T-473ML_	47	20	0.18	7.5	0.99	0.70	3.7	4.3	4.6	1.5	2.1
MSD1278T-563ML_	56	20	0.19	7.0	0.99	0.76	3.6	4.2	4.5	1.4	2.0
MSD1278T-683ML_	68	20	0.21	6.5	0.99	0.88	3.5	4.0	4.3	1.4	1.9
MSD1278T-823ML_	82	20	0.28	5.0	0.99	0.85	3.3	3.7	4.0	1.2	1.7
MSD1278T-104ML_	100	20	0.30	4.5	>0.99	0.90	2.8	3.2	3.5	1.1	1.6
MSD1278T-124KL_	120	10	0.41	4.3	0.99	1.3	2.6	2.9	3.2	0.96	1.4
MSD1278T-154KL_	150	10	0.46	4.1	>0.99	1.5	2.2	2.5	2.7	0.91	1.3
MSD1278T-184KL_	180	10	0.51	4.0	>0.99	0.98	2.1	2.4	2.6	0.86	1.2
MSD1278T-224KL_	220	10	0.69	3.4	>0.99	1.5	1.9	2.2	2.3	0.74	1.1
MSD1278T-274KL_	270	10	0.90	3.1	>0.99	1.2	1.7	1.9	2.1	0.65	0.92
MSD1278T-334KL_	330	10	1.0	2.9	0.99	4.1	1.5	1.7	1.8	0.61	0.86
MSD1278T-394KL_	390	10	1.1	2.7	>0.99	1.6	1.4	1.6	1.7	0.58	0.82
MSD1278T-474KL_	470	10	1.5	2.2	>0.99	0.25	1.3	1.5	1.6	0.50	0.70
MSD1278T-564KL_	560	10	1.7	2.0	>0.99	2.7	1.2	1.3	1.5	0.47	0.67
MSD1278T-684KL_	680	10	2.3	1.7	>0.99	2.1	1.0	1.1	1.2	0.41	0.58
MSD1278T-824KL_	820	10	2.6	1.4	>0.99	2.4	0.90	1.0	1.2	0.39	0.55
MSD1278T-105KL_	1000	10	2.9	1.3	>0.99	4.3	0.85	0.95	1.1	0.37	0.52

注释

When ordering, please specify termination and packaging code: MSD1278T-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.
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 the specified amount 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. Determine temperature rise.
Irms, one winding: Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. 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 +125°C with Irms current

储存温度范围:

Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C

最高元件温度:

+165°C (ambient + temp 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	8,7	0,5

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, 0.5 mm thick, 16 mm pocket spacing, 8.7 mm pocket depth

Winding to Winding Isolation:

500 Vrms, one minute

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:

PCB washing Tested with pure water or alcohol only. More info.

MSD1278T Series

High Temperature Shielded Coupled Power Inductors