SRF1280-1R0M [BOURNS]
General Purpose Inductor, 1uH, 20%, 2 Element, Ferrite-Core, SMD, ROHS COMPLIANT;
| 型号： | SRF1280-1R0M |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | General Purpose Inductor, 1uH, 20%, 2 Element, Ferrite-Core, SMD, ROHS COMPLIANT |
| 文件： | 总2页 (文件大小：354K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
Applications
■ SEPIC topology
■ Power supplies for:
■ Multiple applications: parallel, series,
dual-inductor and transformer
■ Magnetically shielded, low radiation
■ Inductance range: 0.47 to 4000 μH
■ Rated current up to 17.9 A
■ RoHS compliant*
- Communication equipment
- Notebooks, desktop computers,
servers
- LCDs, flat panels, backlights
- Camcorders, HDTVs, car audio
systems
1
10
SRF1280 Series - Dual-Winding Shielded Power Inductors
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
Parallel Rating
DCR
Inductance
@ 100 KHz
Inductance
@ 100 KHz
(Ω)
Irms
(A)
Isat
(A)
Isat
(A)
Bourns Part No. L (μH) 20 ꢀ
Max.
.................................-40 °C to +105 °C
(Temperature rise included)
Storage Temperature ..-40 °C to +125 °C
Resistance to Solder Heat
SRF1280-R47M
SRF1280-1R0M
SRF1280-1R5M
SRF1280-2R2M
SRF1280-3R3M
SRF1280-4R7M
SRF1280-6R8M
SRF1280-8R2M
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
0.0055 17.9
0.0067 15.5
56
40
1.88
4
0.0216 8.94
0.026 7.74
28
20
0.0076 13.5 31.1
0.0092 12.5 25.5
6
0.0306 6.77
0.0338 6.23
15.6
12.7
10.8
8.24
6.67
6.09
5.6
8.8
...............................+260 °C for 10 sec.
0.011
10.4 21.5
13.2
18.8
27.2
32.8
40
0.04
0.05
5.23
4.13
Materials
0.0135 8.25 16.5
0.0183 7.34 13.3
0.0191 6.32 12.2
0.0241 6.04 11.2
0.0333 5.03 9.66
0.0656 3.67
0.0714 3.16
0.0921 3.02
Core..............................................Ferrite
Wire ........................... Enameled copper
Base ................................................LCP
Adhesive.............................. Epoxy resin
Terminal ................................... Cu/Ni/Sn
Rated Current
........... Inductance drops 30 % at Isat
Temperature Rise .... 40 °C at rated Irms
Packaging.......400 pcs. per 13-inch reel
15
60
0.129
0.192
0.265
0.353
0.469
0.578
0.701
2.51
2
4.83
3.78
3.11
2.64
2.22
2.03
1.82
22
0.0503
4
7.57
88
33
0.0664 3.23 6.22
0.0898 2.95 5.28
132
188
272
328
400
600
880
1320
1880
2720
3280
4000
1.61
1.47
1.22
1.04
0.98
47
68
0.123
0.153
0.175
0.261
0.343
0.54
2.44 4.44
2.09 4.06
1.96 3.64
1.59 3.01
1.29 2.43
1.04 2.01
0.85 1.68
0.76 1.39
0.65 1.27
0.61 1.14
82
100
150
220
330
470
680
820
1000
How to Order
1.013 0.796 1.51
1.38 0.645 1.22
2.172 0.522 1.01
SRF1280 - 100M
Model
Value Code (see table)
0.865
1.296
1.632
1.992
3.3
0.427 0.838
0.38 0.697
4.888
5.896 0.325 0.633
7.202 0.307 0.571
Product Dimensions
12.50
MAX.
(.492)
Electrical Schematic
1
2
1
2
N2
4
1
2
12.50
(.492)
MAX.
N1
N2
N1
3
N1
N2
3
4
3
4
PARALLEL
SERIES
8.00
MAX.
(.315)
Recommended Layout
3.85
REF.
2.50
(.098)
REF.
3.85
(.152)
2.50
(.098)
REF.
(.152)
5.00 0.3
(.197 .012)
REF.
2
3
1
4
2
3
1
4
2
3
1
4
13.80
(.543)
REF.
13.80
(.543)
REF.
7.60 0.2
(.299 .008)
0.50
0.50
REF.
REF.
(.020)
(.020)
1.80 0.2
(.071 .008)
DUAL INDUCTOR MODE
SERIES MODE
MM
(INCHES)
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
DIMENSIONS:
Customers should verify actual device performance in their specific applications.
SRF1280 Series - Dual-Winding Shielded Power Inductors
Packaging Specifications
330
(12.99)
2.0 0.5
(.079 .020)
30.4
(1.197)
DIA.
13.0 0.5
(.512 .020)
DIA.
21.0 0.8
(.827 .031)
50.0 -0
(1.97 -0)
13.0
(.512)
DIA.
24.0
(.945)
26 +0
(1.024 +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: 400 PCS. PER REEL
MM
DIMENSIONS:
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
10/10
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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