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SRF1280-8R2M PDF预览

SRF1280-8R2M

更新时间： 2024-09-19 06:06:15
品牌 Logo 应用领域
伯恩斯 - BOURNS /
页数 文件大小 规格书
2页 354K
描述
General Purpose Inductor, 8.2uH, 20%, 2 Element, Ferrite-Core, SMD, ROHS COMPLIANT

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SRF1280-8R2M 数据手册

 浏览型号SRF1280-8R2M的Datasheet PDF文件第2页 
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.  
12

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