features multiple applications: parallel, series, dual-inductor and transformer magnetically shielded, low radiation inductance range: 0.47 to 4000 h heating current up to 17.6 a aec-q200 quali ed rohs compliant* and halogen free** applications automotive systems: - driver assistant - information - entertainment - lighting dc/dc converters power supplies sepic - dc/dc converters srf1260a series - dual-winding shielded power inductors operating temperature ................................-40 ? to +125 ? (temperature rise included) storage temperature ................................-40 ? to +125 ? resistance to soldering heat ............................. +245 ? for 10 sec. temperature rise ......................40 ? typ. at rated i rms inductance drop .......... 30 % typ. at i sat electrical speci cations @ 25 ? bourns part no. parallel rating series rating inductance @ 100 khz/ 0.25 v l ( h) tol. (%) dcr () max. irms (a) isat (a) inductance @ 100 khz/ 0.25 v l ( h) tol. (%) dcr () max. irms (a) isat (a) srf1260a-r47y 0.47 ?0 0.0053 17.6 33 1.88 ?0 0.0212 8.8 16.5 srf1260a-1r0y 1.0 ?0 0.0062 15 23.6 4 ?0 0.026 7.51 11.8 srf1260a-1r5y 1.5 ?0 0.0073 13.8 18.3 6 ?0 0.0302 6.89 9.15 srf1260a-2r2y 2.2 ?0 0.0085 10.9 15 8.8 ?0 0.0333 5.46 7.5 srf1260a-3r3y 3.3 ?0 0.0101 9.26 12.7 13.2 ?0 0.0372 4.63 6.35 srf1260a-4r7y 4.7 ?0 0.0137 7.18 9.71 18.8 ?0 0.0479 3.59 4.86 srf1260a-6r8y 6.8 ?0 0.0186 6.64 8.68 27.2 ?0 0.0672 3.32 4.34 srf1260a-8r2y 8.2 ?0 0.0194 5.54 7.86 32.8 ?0 0.0737 2.77 3.93 SRF1260A-100M 10 ?0 0.0246 5.35 7.17 40 ?0 0.0934 2.67 3.59 srf1260a-150m 15 ?0 0.0329 4.27 5.69 60 ?0 0.125 2.13 2.85 srf1260a-220m 22 ?0 0.0451 3.7 4.71 88 ?0 0.172 1.84 2.36 srf1260a-330m 33 ?0 0.0618 3.28 3.84 132 ?0 0.256 1.64 1.92 srf1260a-470m 47 ?0 0.086 2.71 3.24 188 ?0 0.34 1.35 1.62 srf1260a-680m 68 ?0 0.117 2.22 2.7 272 ?0 0.444 1.11 1.35 srf1260a-820m 82 ?0 0.15 2.05 2.39 328 ?0 0.568 1.03 1.2 srf1260a-101m 100 ?0 0.171 1.78 2.2 400 ?0 0.656 0.892 1.1 srf1260a-151m 150 ?0 0.254 1.48 1.81 600 ?0 0.972 0.739 0.905 srf1260a-221m 220 ?0 0.354 1.19 1.51 880 ?0 1.416 0.594 0.755 srf1260a-331m 330 ?0 0.574 1.06 1.22 1320 ?0 2.29 0.53 0.61 srf1260a-471m 470 ?0 0.83 0.87 1.02 1880 ?0 3.197 0.434 0.51 srf1260a-681m 680 ?0 1.212 0.7 0.85 2720 ?0 4.635 0.35 0.425 srf1260a-821m 820 ?0 1.46 0.6 0.77 3280 ?0 5.363 0.301 0.385 srf1260a-102m 1000 ?0 1.854 0.57 0.7 4000 ?0 6.782 0.283 0.35 general speci cations core ..............................................ferrite wire ............................enameled copper terminal finish ...................................sn packaging .................... 400 pcs. per reel materials product dimensions recommended layout electrical schematics dimensions: mm (inches) n2 2 4 n1 1 3 n2 2 4 n1 1 3 n2 2 4 n1 1 3 parallel series how to order srf1260a - 100m model value code (see table) 220 *rohs compliant & aec-q200 qualified * rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. ** bourns follows the prevailing de nition of ?alogen free?in the industry. bourns considers a product to be ?alogen free?if (a) the bromine (br) content is 900 ppm or less; (b) the chlorine (cl) content is 900 ppm or less; and (c) the total bromine (br) and chlorine (cl) content is 1500 ppm or less. speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci c applications. 4 3 1 2 12.50 (.492) max. 12.50 (.492) max. 6.00 0.2 (.236 .008) 1.80 0.2 (.071 .008) 5.00 0.3 (.197 .012) 5.00 0.3 (.197 .012) 12 34 1 2 43 dual inductor mode series mode 2.15 (.085) 2.15 (.085) 1.28 (.050) 1.28 (.050) 4.50 (.204) 4.50 (.204) 13.00 (.512) 13.00 (.512)
user direction of feed 400 (15.75) no component no component components 400 (15.75) start 4.0 (.157) 16.0 (.630) end srf0504 series - line filter packaging speci cations dimensions: mm (inches) qty: 400 pcs. per reel srf1260a series - dual-winding shielded power inductors 26 +0 (1.024 +0) 30.4 (1.197) 2.0 0.5 (.079 .020) 50.0 -0 (1.97 -0) 330 (12.99) dia. 13.0 ?0.5 (.512 ?.020) dia. 13.0 ?0.5 (.512 ?.020) dia. 21.0 0.8 (.827 .031) 24.0 (.945) soldering pro le 200 max. peak temperature -5
30 sec. max. max. time above 217
: 60~150 sec. max. peak temperature 245
max. 250 150 200 100 50 0 temperature (c) 100 50 150 time (seconds) +4.0 c/sec. max. 150~200 c / 60~120 sec. +3.0 c/sec. max. -(1.0~5.0) c/sec. max. temperature rising area preheat area reflow area forced cooling area 250 peak temperature: 245 c 217 c 60~120 sec. 60 sec. max. 60~150 sec. speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci c applications. 08/13
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