PL IA NT
Features
■ Multiple applications: parallel, series, ■ ■ ■ ■
Applications
■ SEPIC topology ■ Power supplies for:
CO M
220
dual-inductor and transformer Magnetically shielded, low radiation Inductance range: 0.47 to 4000 μH Rated current up to 17.6 A RoHS compliant*
*R oH S
- 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.
General Specifications
Series Rating Irms (A) Isat (A)
Inductance @ 100 KHz Tol.
L (μH)
(%)
DCR (Ω) Max.
L (μH)
(%)
DCR (Ω) Max.
Irms (A)
Isat (A)
SRF1260-R47Y SRF1260-1R0Y SRF1260-1R5Y SRF1260-2R2Y SRF1260-3R3Y SRF1260-4R7Y SRF1260-6R8Y SRF1260-8R2Y SRF1260-100M SRF1260-150M SRF1260-220M SRF1260-330M SRF1260-470M SRF1260-680M SRF1260-820M SRF1260-101M SRF1260-151M SRF1260-221M SRF1260-331M SRF1260-471M SRF1260-681M SRF1260-821M SRF1260-102M
0.47 1.0 1.5 2.2 3.3 4.7 6.8 8.2 10 15 22 33 47 68 82 100 150 220 330 470 680 820 1000
±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20
0.0053 0.0062 0.0073 0.0085 0.0101 0.0137 0.0186 0.0194 0.0246 0.0329 0.0451 0.0618 0.086 0.117 0.15 0.171 0.254 0.354 0.574 0.83 1.212 1.46 1.854
17.6 15 13.8 10.9 9.26 7.18 6.64 5.54 5.35 4.27 3.7 3.28 2.71 2.22 2.05 1.78 1.48 1.19 1.06 0.87 0.7 0.6 0.57
33 23.6 18.3 15 12.7 9.71 8.68 7.86 7.17 5.69 4.71 3.84 3.24 2.7 2.39 2.2 1.81 1.51 1.22 1.02 0.85 0.77 0.7
1.88 4 6 8.8 13.2 18.8 27.2 32.8 40 60 88 132 188 272 328 400 600 880 1320 1880 2720 3280 4000
±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20
0.0212 0.026 0.0302 0.0333 0.0372 0.0479 0.0672 0.0737 0.0934 0.125 0.172 0.256 0.34 0.444 0.568 0.656 0.972 1.416 2.29 3.197 4.635 5.363 6.782
8.8 7.51 6.89 5.46 4.63 3.59 3.32 2.77 2.67 2.13 1.84 1.64 1.35 1.11 1.03 0.892 0.739 0.594 0.53 0.434 0.35 0.301 0.283
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
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 MAX. (.492)
Electrical Schematic
1 2 1 2 1 2
N1
N2
N1
N2
N1
N2
12.50 (.492) MAX.
3
4
3
4
3
4
PARALLEL
SERIES
6.00 ± 0.2 (.236 ± .008)
Recommended Layout
2.50 (.098) REF. 3.85 REF. (.152) 2.50 (.098) REF. 3.85 REF. (.152) 5.00 ± 0.3 (.197 ± .012)
2
1
13.80 (.543) REF.
2
1
13.80 (.543) REF. 7.60 ± 0.2 (.299 ± .008)
1
2
3
REF. 0.50 (.020)
4
REF. 0.50 (.020)
3
4
4
3
1.80 ± 0.2 (.071 ± .008)
DUAL INDUCTOR MODE
SERIES MODE
DIMENSIONS: MM (INCHES)
*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.
SRF0504Series - Dual-Winding Shielded Power Inductors RF1260 Series - Line Filter
Packaging Specifications
330 DIA. (12.99) 2.0 ± 0.5 (.079 ± .020) 30.4 (1.197) 13.0 ± 0.5 (.512 ± .020) DIA. 50.0 -0 (1.97 -0) 13.0 ± 0.5 DIA. (.512 ± .020) 26 +0 (1.024 +0)
21.0 ± 0.8 (.827 ± .031)
24.0 (.945)
END
16.0 (.630)
4.0 (.157)
START
NO COMPONENT
COMPONENTS
NO COMPONENT
200 (7.87)
400 (15.75)
USER DIRECTION OF FEED
QTY: 400 PCS. PER REEL
DIMENSIONS:
MM (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
01/11
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
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