features n shielded construction n inductance range: 1.2 to 390 h n heating current up to 4.8 a n aec-q200 compliant n rohs compliant* and halogen free** applications n selected automotive applications: - driver assistant - infotainment - lighting n dc/dc converters n power supplies srr4528a series C shielded power inductors * rohs directive 2015/863, mar 31, 2015 and annex. **bourns considers a product to be halogen 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. specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf . operating temperature ................................ -40 c to +125 c (temperature rise included) storage temperature ................................ -40 c to +125 c temperature rise ................... 40 c typ. at rated irms inductance drop ........... 35 % typ. at isat msl ...................................................... 1 esd classifcation (hbm) ................. n/a core .............................................. ferrite wire ............................ enameled copper terminal finish ................................... sn packaging ......... 500 pcs. per 7-inch reel srp4528a - 1r2y model value code (see table) 10 0 17 20 10 0 17 20 9.60 0.2 (.378 .008) 9.60 0.2 (.378 .008) 8.7 0.25 (.343 .010) 0.15 (.006) 12.0 0.2 (.472 .008) 2.8 0.10 (.110 .004) 3.4 (.134) min. 11.3 0.3 (.445 .012) 2.3 0.3 (.091 .012) 2.5 0.3 (.098 .012) 1.95 0.15 (.077 .006) 2.8 0.10 (.110 .004) 1.50 (.059) 2.9 (.114) 3.4 (.134) 9.7 (.382) 3.3 (.130) s f f s asia-pacifc: tel: +886-2 2562-4117 ? email: asiacus@bourns.com emea: tel: +36 88 520 390 ? email: eurocus@bourns.com the americas: tel: +1-951 781-5500 ? email: americus@bourns.com www.bourns.com *rohs compliant, **halogen free & aec-q200 compliant bourns part number inductance @ 100 khz / 0.1 v srf (mhz) typ. dcr (m) i rms (a) typ. i sat (a) typ. l (h) tol. % typ. max. srr4528a-1r2y 1.2 30 % 82.0 12.3 17.0 4.82 3.04 srr4528a-1r8y 1.8 30 % 78.0 14.3 20.0 4.20 2.50 srr4528a-2r2y 2.2 30 % 76.0 17.4 23.0 3.78 2.32 srr4528a-2r7y 2.7 30 % 68.0 19.1 29.0 3.40 2.10 srr4528a-3r3y 3.3 30 % 60.0 25.6 35.0 2.93 1.82 srr4528a-3r9y 3.9 30 % 58.0 28.2 37.0 2.80 1.70 srr4528a-4r7y 4.7 30 % 54.0 29.8 40.0 2.63 1.58 srr4528a-5r6y 5.6 30 % 50.0 34.9 47.0 2.39 1.49 srr4528a-6r8y 6.8 30 % 45.0 43.2 58.0 2.25 1.37 srr4528a-7r4y 7.4 30 % 42.0 46.7 63.0 2.16 1.28 srr4528a-8r2y 8.2 30 % 38.0 51.5 70.0 2.12 1.22 SRR4528A-100M 10.0 20 % 35.0 64.9 88.0 1.76 1.13 srr4528a-120m 12.0 20 % 28.0 74.2 100.0 1.62 0.99 srr4528a-150m 15.0 20 % 24.0 87.9 119.0 1.42 0.90 srr4528a-180m 18.0 20 % 23.0 104.0 136.0 1.28 0.85 srr4528a-220m 22.0 20 % 21.0 138.0 179.0 1.10 0.72 srr4528a-270m 27.0 20 % 20.0 152.0 197.0 1.06 0.68 srr4528a-330m 33.0 20 % 18.0 184.0 239.0 0.95 0.59 srr4528a-390m 39.0 20 % 16.0 218.0 272.0 0.90 0.57 srr4528a-470m 47.0 20 % 15.0 240.0 300.0 0.86 0.52 srr4528a-560m 56.0 20 % 14.0 278.0 348.0 0.81 0.45 srr4528a-680m 68.0 20 % 12.0 361.0 452.0 0.70 0.41 srr4528a-820m 82.0 20 % 11.0 442.0 552.0 0.59 0.39 srr4528a-101m 100.0 20 % 10.0 487.0 609.0 0.56 0.34 srr4528a-121m 120.0 20 % 9.0 547.0 700.0 0.53 0.30 srr4528a-151m 150.0 20 % 8.5 724.0 905.0 0.48 0.29 srr4528a-181m 180.0 20 % 7.0 903.0 1128.0 0.43 0.26 srr4528a-221m 220.0 20 % 6.0 1184.0 1480.0 0.37 0.23 srr4528a-271m 270.0 20 % 5.0 1290.0 1612.0 0.34 0.19 srr4528a-331m 330.0 20 % 4.5 1730.0 2160.0 0.32 0.18 srr4528a-391m 390.0 20 % 4.0 1910.0 2380.0 0.28 0.17 electrical specifcations @ 25 c general specifcations materials how to order schematic
srr4528a series C shielded power inductors specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf . soldering profle 20 0 max. peak temperature -5
30 sec. max. max. time above 217
: 60~150 sec. max. peak temperature 260
max. 25 0 15 0 20 0 10 0 50 0 temperature (c) 10 0 50 15 0 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 25 0 peak temperature: 260 c 217 c 60~120 sec. 60 sec. max. 60~150 sec. 10 0 5.00 (.197) max. 5.00 (.197) max. 5.20 (.205) 4.20 (.165) 2.80 (.110) max. 2.10 (.083) typ. 6.20 (.244) typ. 2.00 (.079) 1.60 (.063) 10 0 ? ?
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srr4528a series C shielded power inductors specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf . inductance vs. current and temperature rise vs. current 0.0 00 .2 0.40 .8 0.61 .0 1.2 0 00 .380 .761 .141 .521 .90 1.00 2.00 3.00 4.00 5.00 1.0 0.51 .5 2.5 2.03 .0 srr4528a-4r7y srr4528a-220m srr4528a-470m srr4528a-391m srr4528a-4r7y srr4528a-220m srr4528a-470m srr4528a-391m idc (a) idc (a) 00 .2 0.40 .6 0.8 idc (a) 00 .10 0.05 0.15 0.25 0.20 0.30 idc (a) idc (a) idc (a) idc (a) 0 00 .110 .220 .330 .44 0.26 0.52 0.78 1.04 1.30 idc (a) l @ 25 c t @ 25 c t @ 25 c t @ 25 c t @ 25 c l @ 125 c l @ 125 c l @ 125 c l @ 125 c l/loa l/loa l/loa t (c) t (c) 120 % 90 % 60 % 30 % 0 % l/loa 100.0 80.0 60.0 40.0 20.0 0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0 t (c) 80.0 60.0 40.0 20.0 0 t (c) 80.0 60.0 40.0 20.0 0 l @ 25 c l @ 25 c l @ 25 c 120 % 90 % 60 % 30 % 0 % 120 % 90 % 60 % 30 % 0 % 120 % 90 % 60 % 30 % 0 %
srr4528a series C shielded power inductors specifcations are subject to change without notice. users should verify actual device performance in their specifc applications. the products described herein and this document are subject to specifc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf . rev. 06/18/18 packaging specifcations dimensions: mm (inches) 10 0 10 0 10 0 16.5 (.650) 14 +0 (.551 +0) 13 (.512) dia. 178 (7.008) 50 -0 (1.969 -0) user direction of feed qty: 500 pcs per reel 4.0 (.157) 12 (.472) 200 (7.874) no component components no component 400 (15.748) 8.0 (.315) 178 (7.008) 2.0 0.5 (.079 .020) 21.0 0.8 (.827 .031) dia. dia. 12 (.472)
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