SRF1280-821M [BOURNS]
General Purpose Inductor, 820uH, 20%, 2 Element, Ferrite-Core, SMD, 4949, ROHS COMPLIANT;
| 型号： | SRF1280-821M |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | General Purpose Inductor, 820uH, 20%, 2 Element, Ferrite-Core, SMD, 4949, ROHS COMPLIANT 测试 功率感应器 电感器 |
| 文件： | 总2页 (文件大小：369K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
Applications
nꢀ Multipleꢀapplications:ꢀparallel,ꢀseries,ꢀꢀ
nꢀ SEPICꢀtopology
ꢀ
dual-inductorꢀandꢀtransformer
nꢀ Powerꢀsuppliesꢀfor:ꢀ
nꢀ Magneticallyꢀshielded,ꢀlowꢀradiation
nꢀꢀInductanceꢀrange:ꢀ0.47ꢀtoꢀ4000ꢀμH
nꢀꢀRatedꢀcurrentꢀupꢀtoꢀ17.9ꢀA
nꢀ RoHSꢀcompliant*
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀꢀꢀꢀꢀ-ꢀCommunicationꢀequipmentꢀ
ꢀꢀꢀꢀꢀ-ꢀNotebooks,ꢀdesktopꢀcomputers,ꢀꢀ
ꢀꢀꢀꢀꢀꢀꢀꢀserversꢀ
1
0
1
ꢀꢀꢀꢀꢀ-ꢀLCDs,ꢀflatꢀpanels,ꢀbacklightsꢀ
ꢀꢀꢀꢀꢀ-ꢀCamcorders,ꢀHDTVs,ꢀcarꢀaudioꢀꢀ
ꢀ
systems
ꢀꢀSRF1280ꢀSeriesꢀ-ꢀDual-WindingꢀShieldedꢀPowerꢀInductors
Electrical Specifications @ 25 °C
General Specifications
Test Voltage..................................0.25 V
Hi-pot ................500 Vrms, 3 mA, 3 sec.
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
.................................-40 °C to +105 °C
(Temperature rise included)
Storage Temperature ..-40 °C to +125 °C
Resistance to Solder Heat
...............................+260 °C for 10 sec.
Parallel Rating
DCR
Series Rating
DCR
Inductance
Inductance
Bourns
Part No.
@ 100 KHz Tol.
(W)
Max.
Irms Isat @ 100 KHz Tol.
(W)
Max.
Irms
(A)
Isat
(A)
L (μH)
(%)
(A)
(A)
L (μH)
(%)
SRF1280-R47Y
SRF1280-1R0Y
SRF1280-1R5Y
SRF1280-2R2Y
SRF1280-3R3Y
SRF1280-4R7Y
SRF1280-6R8Y
SRF1280-8R2Y
SRF1280-100M
SRF1280-150M
SRF1280-220M
SRF1280-330M
SRF1280-470M
SRF1280-680M
SRF1280-820M
SRF1280-101M
SRF1280-151M
SRF1280-221M
SRF1280-331M
SRF1280-471M
SRF1280-681M
SRF1280-821M
SRF1280-102M
0.47
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10
15
22
33
47
±30 0.0055 17.9
±30 0.0067 15.5
56
40
1.88
4
6
±30 0.0216 8.94
±30 0.026 7.74
±30 0.0306 6.77 15.6
±30 0.0338 6.23 12.7
±30 0.04
±30 0.05
±30 0.0656 3.67 6.67
±30 0.0714 3.16 6.09
28
20
±30 0.0076 13.5 31.1
±30 0.0092 12.5 25.5
±30 0.011 10.4 21.5
±30 0.0135 8.25 16.5
±30 0.0183 7.34 13.3
±30 0.0191 6.32 12.2
±20 0.0241 6.04 11.2
±20 0.0333 5.03 9.66
8.8
13.2
18.8
27.2
32.8
40
5.23 10.8
4.13 8.24
Materials
Core..............................................Ferrite
Wire ........................... Enameled copper
Base ................................................LCP
Adhesive.............................. Epoxy resin
Terminal ..............................................Sn
Rated Current
........... Inductance drops 30 % at Isat
Temperature Rise .... 40 °C at rated Irms
Packaging.......400 pcs. per 13-inch reel
±20 0.0921 3.02
±20 0.129 2.51 4.83
±20 0.192 3.78
5.6
60
88
±20 0.0503
4
7.57
2
±20 0.0664 3.23 6.22
±20 0.0898 2.95 5.28
±20 0.123 2.44 4.44
±20 0.153 2.09 4.06
±20 0.175 1.96 3.64
±20 0.261 1.59 3.01
±20 0.343 1.29 2.43
132
188
272
328
400
600
880
1320
1880
2720
3280
4000
±20 0.265 1.61 3.11
±20 0.353 1.47 2.64
±20 0.469 1.22 2.22
±20 0.578 1.04 2.03
±20 0.701 0.98 1.82
±20 1.013 0.796 1.51
±20 1.38 0.645 1.22
±20 2.172 0.522 1.01
68
82
100
150
220
330
470
680
820
1000
How to Order
SRF1280 - 100M
±20
0.54
1.04 2.01
Model
±20 0.865 0.85 1.68
±20 1.296 0.76 1.39
±20 1.632 0.65 1.27
±20 1.992 0.61 1.14
±20
3.3
0.427 0.838
Value Code (see table)
±20 4.888 0.38 0.697
±20 5.896 0.325 0.633
±20 7.202 0.307 0.571
Product Dimensions
12.50
MAX.
(.492)
Electrical Schematic
DOT
INDICATES
1
2
1
2
1
2
TERMINAL 1
12.50
(.492)
MAX.
N1
N2
N1
N2
N1
N2
3
4
3
4
3
4
PARALLEL
SERIES
8.00
MAX.
(.315)
Recommended Layout
4.50
(.1772
4.50
(.1772
ꢁ.15
(.0852
ꢁ.15
(.0852
5.00 0.ꢀ
(.197 .01ꢁ2
3
4
1
5.00 0.ꢀ
(.197 .01ꢁ2
1
2
3
1
2
3
1ꢀ.00
(.51ꢁ2
1ꢀ.00
(.51ꢁ2
4
4
1.ꢁ8
(.0502
1.ꢁ8
(.0502
2
1.80 0.2
(.071 .008)
DUAL INDUCTOR MODE
SERIES MODE
*RoHSꢀDirectiveꢀ2002/95/ECꢀJan.ꢀ27,ꢀ2003ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2011/65/EUꢀJuneꢀ8,ꢀ2011.ꢀ
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
ꢀ
MM
(INCHES)
DIMENSIONS:
Theꢀdeviceꢀcharacteristicsꢀandꢀparametersꢀinꢀthisꢀdataꢀsheetꢀcanꢀandꢀdoꢀvaryꢀinꢀdifferentꢀapplicationsꢀandꢀactualꢀdeviceꢀ
performanceꢀmayꢀvaryꢀoverꢀtime.
ꢀ
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.
ꢀ
ꢀ
SRF1280ꢀSeriesꢀ-ꢀDual-WindingꢀShieldedꢀPowerꢀInductors
Packaging Specifications
330
(12.99)
2.0ꢀ±ꢀ0.5
(.079ꢀ±ꢀ.020)
30.4
(1.197)
DIA.
13.0ꢀ ꢀ0.5
(.512ꢀ ꢀ.020)
DIA.
21.0ꢀ±ꢀ0.8
(.827ꢀ±ꢀ.031)
50.0ꢀ-0
(1.97ꢀ-0)
13.0
(.512)
DIA.
24.0
(.945)
26ꢀ+0
(1.024ꢀ+0)
16.0
4.0
(.630)
(.157)
END
START
NO COMPONENT
200
COMPONENTS
NO COMPONENT
400
(7.87)
(15.75)
USER DIRECTION OF FEED
QTY:ꢀ400ꢀPCS.ꢀPERꢀREEL
ꢀ
MM
(INCHES)
DIMENSIONS:
ꢀ
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 02/18
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Theꢀdeviceꢀcharacteristicsꢀandꢀparametersꢀinꢀthisꢀdataꢀsheetꢀcanꢀandꢀdoꢀvaryꢀinꢀdifferentꢀapplicationsꢀandꢀactualꢀdeviceꢀperformanceꢀmayꢀvaryꢀoverꢀtime.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.
相关型号：
SRF1280-8R2M
General Purpose Inductor, 8.2uH, 20%, 2 Element, Ferrite-Core, SMD, ROHS COMPLIANT
BOURNS
SRF1280-8R2Y
General Purpose Inductor, 8.2uH, 30%, 2 Element, Ferrite-Core, SMD, 4949, ROHS COMPLIANT
BOURNS
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