7.2 (.283) 7.4 (.291) typ. typ. 10.0 ?0.3 (.394 ?.012) 1.8 (.071) 1.8 (.071) 4.0 (.157) 3.4 (.134) typ. 3.2 (.126) typ. 3.4 (.134) 2.8 ?0.3 (.110 ?.012) 10.0 ?0.3 (.394 ?.012) t t features shielded construction inductance range: 1 to 150 ? heating current up to 7 a aec-q200 quali ed rohs compliant* and halogen free** applications automotive systems: - driver assistant - information - entertainment - lighting dc/dc converters power supplies sru1028a series - shielded power inductors operating temperature ................................-40 ? to +125 ? (temperature rise included) storage temperature ................................-40 ? to +125 ? resistance to soldering heat ............................. +250 ? for 10 sec. temperature rise ......................40 ? typ. at rated i rms inductance drop .......... 35 % typ. at i sat electrical speci cations @ 25 ? general speci cations core ..............................................ferrite wire ............................enameled copper terminal finish .........................ag/ni/sn packaging .................. 1000 pcs. per reel materials product dimensions recommended layout dimensions: mm (inches) how to order sru1028a - 100y model value code (see table) *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. electrical schematic inductor connection asia-paci c: 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 100 bourns part number inductance @ 100 khz / 1 v q (ref.) test freq. (mhz) srf (mhz) typ. dcr (m ) max. i rms (a) i sat (a) l (?) tol. (%) sru1028a-1r0y 1.0 ?0 14 7.96 100 6.5 7.00 8.00 sru1028a-1r5y 1.5 ?0 12 7.96 80 10.0 6.50 6.50 sru1028a-2r2y 2.2 ?0 12 7.96 65 15.0 5.30 4.80 sru1028a-3r3y 3.3 ?0 14 7.96 55 20.0 4.60 4.30 sru1028a-4r7y 4.7 ?0 12 7.96 40 23.0 4.50 3.80 sru1028a-6r8y 6.8 ?0 12 7.96 30 33.0 3.50 3.00 sru1028a-8r2y 8.2 ?0 12 7.96 28 37.0 3.30 2.70 SRU1028A-100Y 10 ?0 20 2.52 25 53.0 2.80 2.40 sru1028a-150y 15 ?0 26 2.52 22 90.0 2.00 2.00 sru1028a-220y 22 ?0 26 2.52 16 135.0 1.60 1.40 sru1028a-330y 33 ?0 24 2.52 12 180.0 1.25 1.20 sru1028a-470y 47 ?0 20 2.52 11 230.0 1.30 1.10 sru1028a-560y 56 ?0 22 2.52 10 270.0 1.10 1.00 sru1028a-680y 68 ?0 20 2.52 9 300.0 1.00 0.90 sru1028a-820y 82 ?0 20 2.52 8 420.0 0.90 0.85 sru1028a-101y 100 ?0 20 0.796 7 470.0 0.85 0.80 sru1028a-121y 120 ?0 18 0.796 6 560.0 0.70 0.70 sru1028a-151y 150 ?0 18 0.796 5 680.0 0.65 0.65 lcr meter t t
srf0504 series - line filter sru1028a series - shielded power inductors soldering pro le l vs. idc 0.0 0.3 0.6 0.9 1.2 1.5 0.0 3.0 6.0 9.0 12.0 15.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0.0 2.0 4.0 6.0 8.0 0.0 20.0 40.0 60.0 80.0 100.0 120.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 sru1028a-1r0y sru1028a-6r8y sru1028a-101y sru1028a-150y idc (a) l (uh) idc (a) l (uh) idc (a) l (uh) idc (a) l (uh) l @ 25 l @ 125 l @ 25 l @ 125 l @ 25 l @ 125 l @ 25 l @ 125 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 perfor mance may vary over time. users should verify actual device performance in their speci c applications. 200 max. peak temperature -5
30 sec. max. max. time above 217
: 60~150 sec. max. peak temperature 250
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: 250 c 217 c 60~120 sec. 60 sec. max. 60~150 sec.
sru1028a series - shielded power inductors 200 (7.874) no component no component components 400 (15.748) start 4 (.157) 16 (.63) end dimensions: mm (inches) qty: 1000 pcs. per reel 24 (.945) 26 +0 (1.02 +0) 30.4 (1.20) 2.0 0.5 (.079 .020) 50 -0 (1.969 -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) temperature vs. idc 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 0.0 3.0 6.0 9.0 12.0 15.0 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 0.0 2.0 4.0 6.0 8.0 0.0 10.0 20.0 30.0 40.0 50.0 60.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 sru1028a-1r0y sru1028a-6r8y sru1028a-150y sru1028a-101y idc (a) t (c) idc (a) t (c) idc (a) t (c) idc (a) t (c) t @ 25 t @ 25 t @ 25 t @ 25 rev. 09/13 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. user direction of feed packaging speci cations
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