SRF1260 Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – SRF1260 Series - Dual-Winding Shielded Power Inductors

*RoHS ^COMPLIANT
220
Features
■ Multiple applications: parallel, series,
dual-inductor and transformer
■ Magnetically shielded, low radiation
■ Inductance range: 0.47 to 4000 μH
■ Rated current up to 17.6 A
■ RoHS compliant*
Applications
■ SEPIC topology
■ Power supplies for:
- Communication equipment
- Notebooks, desktop computers,
servers
- LCDs, flat panels, backlights
- Camcorders, HDTVs, car audio
systems
SRF1260 Series - Dual-Winding Shielded Power Inductors
Electrical Specifications @ 25 °C
Parallel Rating
Bourns
Part No.
Inductance
@ 100 KHz Tol.
L (μH) (%)
DCR
(Ω)
Max.
Irms
(A)
SRF1260-R47Y 0.47 ±30 0.0053 17.6
SRF1260-1R0Y 1.0 ±30 0.0062 15
SRF1260-1R5Y 1.5 ±30 0.0073 13.8
SRF1260-2R2Y 2.2 ±30 0.0085 10.9
SRF1260-3R3Y 3.3 ±30 0.0101 9.26
SRF1260-4R7Y 4.7 ±30 0.0137 7.18
SRF1260-6R8Y 6.8 ±30 0.0186 6.64
SRF1260-8R2Y 8.2 ±30 0.0194 5.54
SRF1260-100M
10
±20 0.0246 5.35
SRF1260-150M
15
±20 0.0329 4.27
SRF1260-220M
22
±20 0.0451 3.7
SRF1260-330M
33
±20 0.0618 3.28
SRF1260-470M
47
±20 0.086 2.71
SRF1260-680M
68
±20 0.117 2.22
SRF1260-820M
82
±20 0.15 2.05
SRF1260-101M 100 ±20 0.171 1.78
SRF1260-151M 150 ±20 0.254 1.48
SRF1260-221M 220 ±20 0.354 1.19
SRF1260-331M 330 ±20 0.574 1.06
SRF1260-471M 470 ±20 0.83 0.87
SRF1260-681M 680 ±20 1.212 0.7
SRF1260-821M 820 ±20 1.46 0.6
SRF1260-102M 1000 ±20 1.854 0.57
Series Rating
Inductance
Isat @ 100 KHz Tol.
(A) L (μH) (%)
DCR
(Ω)
Max.
Irms
(A)
33
1.88 ±30 0.0212 8.8
23.6
4
±30 0.026 7.51
18.3
6
±30 0.0302 6.89
15
8.8 ±30 0.0333 5.46
12.7 13.2 ±30 0.0372 4.63
9.71 18.8 ±30 0.0479 3.59
8.68 27.2 ±30 0.0672 3.32
7.86 32.8 ±30 0.0737 2.77
7.17
40
±20 0.0934 2.67
5.69
60
±20 0.125 2.13
4.71
88
±20 0.172 1.84
3.84 132 ±20 0.256 1.64
3.24 188 ±20 0.34 1.35
2.7
272 ±20 0.444 1.11
2.39 328 ±20 0.568 1.03
2.2
400 ±20 0.656 0.892
1.81 600 ±20 0.972 0.739
1.51 880 ±20 1.416 0.594
1.22 1320 ±20 2.29 0.53
1.02 1880 ±20 3.197 0.434
0.85 2720 ±20 4.635 0.35
0.77 3280 ±20 5.363 0.301
0.7 4000 ±20 6.782 0.283
Isat
(A)
16.5
11.8
9.15
7.5
6.35
4.86
4.34
3.93
3.59
2.85
2.36
1.92
1.62
1.35
1.2
1.1
0.905
0.755
0.61
0.51
0.425
0.385
0.35
Electrical Schematic
1
2
1
2
1
2
N1
N2
N1
N2
N1
N2
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.
Materials
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
How to Order
SRF1260 - 100M
Model
Value Code (see table)
Product Dimensions
12.50
(.492)
MAX.
12.50
(.492)
MAX.
3
4
3
4
3
4
Recommended Layout
2.50
(.098)
REF.
21
PARALLEL
3.85
(.152) ^REF.
SERIES
2.50
(.098)
REF. _{2 1}
3.85
(.152)
REF.
6.00 ± 0.2
(.236 ± .008)
5.00 ± 0.3
(.197 ± .012)
12
13.80
(.543)
REF.
13.80
(.543)
REF.
7.60 ± 0.2
(.299 ± .008)
34
REF.(0.0.5200)
34
REF.(0.0.5200)
DUAL INDUCTOR MODE
SERIES MODE
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
43
1.80 ± 0.2
(.071 ± .008)
DIMENSIONS:
MM
(INCHES)