features n shielded construction n carbonyl powder core n high saturation current n inductance range: 0.10 to 33 h n aec-q200 qualifed n rohs compliant* and halogen free** applications n automotive systems: - driver assistant - information - entertainment - lighting n dc/dc converters n power supplies srp7028a series - shielded power inductors test voltage .................................... 1.0 v test frequency ......................... 100 khz operating temperature ................................ -40 c to +150 c (temperature rise included) storage temperature ................................ -40 c to +125 c rated current ............ inductance drops 20 % at isat temperature rise ..... 40 c at rated irms resistance to soldering heat ........................ +260 c, 40 sec. max. electrical specifcations @ 25 c general specifcations core ............................. carbonyl powder wire ............................ enameled copper terminal finish ................................... sn packaging ..... 1000 pcs. per 13-inch reel materials product dimensions recommended layout dimensions: mm (inches) how to order srp7028a - 100m model value code (see table) *rohs compliant *rohs complian t & aec approved *rohs complian t aec approved (select models) lead free *rohs compliant versions available lead free versions are rohs compliant* * rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. **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. 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 specifc applications. electrical schematic bourns part number inductance @ 100 khz / 1 v q (min.) @100 khz / 1 v srf (mhz) typ. dcr (mw) typ. dcr (mw) max. irms (a) isat (a) l (h) tol. (%) srp7028a-r10m 0.10 20 5 300 1.2 1.7 32.5 60 srp7028a-r15y 0.15 30 5 220 1.5 1.9 27 45 srp7028a-r22y 0.22 30 5 150 2.1 2.8 23 40 srp7028a-r33m 0.33 20 10 140 3.5 3.9 20 32 srp7028a-r47m 0.47 20 10 80 4 4.2 17.5 26 srp7028a-r56m 0.56 20 15 70 4.7 5.0 16.5 25.5 srp7028a-r68m 0.68 20 15 67 4.8 5.5 15.5 25 srp7028a-r75m 0.75 20 15 65 5.5 6.6 14.5 24.5 srp7028a-r82m 0.82 20 15 61 6.7 8.0 13 24 srp7028a-1r0m 1.0 20 20 58 8.3 10.0 11 22 srp7028a-1r5m 1.5 20 20 38 13 15.0 9 18 srp7028a-1r8m 1.8 20 20 36 14 17.0 8.5 16 srp7028a-2r2m 2.2 20 20 32 18 20.0 8 14 srp7028a-2r5m 2.5 20 20 30 20 22.0 7 13 srp7028a-3r3m 3.3 20 20 25 28 30.0 6 12 srp7028a-4r7m 4.7 20 20 21 37 40.0 5.5 10 srp7028a-5r6m 5.6 20 20 19 43 48.0 5 9 srp7028a-6r8m 6.8 20 20 18 54 60.0 4.5 8 srp7028a-8r2m 8.2 20 20 17 64 68.0 4 7.5 srp7028a-100m 10 20 20 14 75 85.0 3.5 6 srp7028a-150m 15 20 20 12 107 123.0 3.0 4 SRP7028A-220M 22 20 20 10 165 190.0 2.0 3.5 srp7028a-330m 33 20 20 8 200 240.0 2.0 2.5 soldering profle 14.2 (.559) 13.5 0.5 (.531 .020) 8.0 (.315) 3.3 (.130) 3.3 0.2 (.130 + .008) 12.5 0.3 (.492 .012) 3.0 0.3 (.118 .012) 8r2 1 150 2.3 0.3 (.091 .012) 2.75 0.35 (.108 .014) 8.4 (.331) 7.3 0.3 (.287 .012) 2.5 (.098) 3.5 (.138) 6.6 0.3 (.260 .012) 2.8 0.2 (.110 + .008) 3.0 0.3 (.118 .012) 1.8 0.3 (.071 .012) 2r2 1 150 1r0 1250 max. peak temperature 260
40 sec. max. max. time above 217
: 60~150 sec. max. peak temperature 260
max. 25 temperature (c) time (seconds) reflow times: 3 times max. preheating soldering natural cooling 217 c peak temperature (260 c, 40 sec. max.) 200 c 150c 60~180 sec. 480 sec. max. 60~150 sec. 20~40 sec. please consult bourns ? model srp-a series visual inspection guide for detailed construction, processing and testing information.
srf0504 series - line filter srp7028a series - shielded power inductors specifcations 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 specifc applications. l vs. i charts 0 01 0 20 30 40 0.1 0.2 0.3 0.4 0 inductance ( h) dc current (a) srp7028a-r22y temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 08 16 24 32 0.15 0.3 0.45 0.6 0 inductance ( h) dc current (a) srp7028a-r33m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 06 .5 13 19.52 6 0.2 0.4 0.6 0.8 0 inductance ( h) dc current (a) srp7028a-r47m temperature rise (c) 30 10 20 70 40 50 60 80 0 05 .1 10.2 15.3 20.4 25.5 0.2 0.6 0.4 0.8 1.0 0 inductance ( h) dc current (a) srp7028a-r56m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 06 12 18 24 0.4 1.2 0.8 1.6 0 inductance ( h) dc current (a) srp7028a-r82m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 05 10 15 20 25 0.3 0.6 0.9 1.2 0 inductance ( h) dc current (a) srp7028a-r68m temperature rise (c) 30 10 20 70 40 50 60 80 0 04 .9 9.8 14.7 19.6 24.5 0.3 0.9 0.6 1.2 1.5 0 inductance ( h) dc current (a) srp7028a-r75m temperature rise (c) 30 10 20 70 40 50 60 80 0 05 .5 11 16.52 2 0.5 1.5 1.0 2 0 inductance ( h) dc current (a) srp7028a-1r0m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 04 .5 9 13.51 8 0.6 2.4 1.8 1.2 3.0 0 inductance ( h) dc current (a) srp7028a-1r5m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 04 81 21 6 0.6 1.2 2.4 1.8 3.0 0 inductance ( h) dc current (a) srp7028a-1r8m temperature rise (c) 30 120 60 90 150 0 03 .5 7 10.51 4 1 3 2 4 0 inductance ( h) dc current (a) srp7028a-2r2m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 4 68 10 2 6 4 8 0 inductance ( h) dc current (a) srp7028a-4r7m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 48 10 2 8 6 4 10 0 inductance ( h) dc current (a) srp7028a-5r6m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 03 .375 6.75 10.125 13.5 1.5 4.5 3.0 6.0 0 inductance ( h) dc current (a) srp7028a-3r3m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 03 .25 6.59 .751 3 1 2 4 3 5 0 inductance ( h) dc current (a) srp7028a-2r5m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 4 68 4 12 8 16 0 inductance ( h) dc current (a) srp7028a-6r8m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 01 .875 3.75 5.625 7.5 4 12 8 16 0 inductance ( h) dc current (a) srp7028a-8r2m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 01 .5 3 4.56 5 15 10 20 0 inductance ( h) dc current (a) srp7028a-100m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 00 .8 1.6 2.4 3.24 4.8 19.2 9.6 14.4 24 0 inductance ( h) dc current (a) srp7028a-150m temperature rise (c) 7 28 14 21 35 0 01 2 34 10 30 20 40 0 inductance ( h) dc current (a) SRP7028A-220M temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 00 .5 1 1.5 22 .5 15 45 30 60 0 inductance ( h) dc current (a) srp7028a-330m temperature rise (c) 10 40 20 30 50 0 01 0 20 30 40 50 0.06 0.12 0.18 0.24 0.30 0 inductance ( h) dc current (a) srp7028a-r15y temperature rise (c) 16 64 32 48 80 0 01 5 30 45 60 0.05 0.10 0.15 0.20 0 inductance ( h) dc current (a) srp7028a-r10m temperature rise (c) 10 20 30 80 40 50 60 70 90 100
srf0504 series - line filter srp7028a series - shielded power inductors specifcations 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 specifc applications. l vs. i charts (continued) 0 01 0 20 30 40 0.1 0.2 0.3 0.4 0 inductance ( h) dc current (a) srp7028a-r22y temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 08 16 24 32 0.15 0.3 0.45 0.6 0 inductance ( h) dc current (a) srp7028a-r33m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 06 .5 13 19.52 6 0.2 0.4 0.6 0.8 0 inductance ( h) dc current (a) srp7028a-r47m temperature rise (c) 30 10 20 70 40 50 60 80 0 05 .1 10.2 15.3 20.4 25.5 0.2 0.6 0.4 0.8 1.0 0 inductance ( h) dc current (a) srp7028a-r56m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 06 12 18 24 0.4 1.2 0.8 1.6 0 inductance ( h) dc current (a) srp7028a-r82m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 05 10 15 20 25 0.3 0.6 0.9 1.2 0 inductance ( h) dc current (a) srp7028a-r68m temperature rise (c) 30 10 20 70 40 50 60 80 0 04 .9 9.8 14.7 19.6 24.5 0.3 0.9 0.6 1.2 1.5 0 inductance ( h) dc current (a) srp7028a-r75m temperature rise (c) 30 10 20 70 40 50 60 80 0 05 .5 11 16.52 2 0.5 1.5 1.0 2 0 inductance ( h) dc current (a) srp7028a-1r0m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 04 .5 9 13.51 8 0.6 2.4 1.8 1.2 3.0 0 inductance ( h) dc current (a) srp7028a-1r5m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 04 81 21 6 0.6 1.2 2.4 1.8 3.0 0 inductance ( h) dc current (a) srp7028a-1r8m temperature rise (c) 30 120 60 90 150 0 03 .5 7 10.51 4 1 3 2 4 0 inductance ( h) dc current (a) srp7028a-2r2m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 4 68 10 2 6 4 8 0 inductance ( h) dc current (a) srp7028a-4r7m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 48 10 2 8 6 4 10 0 inductance ( h) dc current (a) srp7028a-5r6m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 03 .375 6.75 10.125 13.5 1.5 4.5 3.0 6.0 0 inductance ( h) dc current (a) srp7028a-3r3m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 03 .25 6.59 .751 3 1 2 4 3 5 0 inductance ( h) dc current (a) srp7028a-2r5m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 02 4 68 4 12 8 16 0 inductance ( h) dc current (a) srp7028a-6r8m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 01 .875 3.75 5.625 7.5 4 12 8 16 0 inductance ( h) dc current (a) srp7028a-8r2m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 01 .5 3 4.56 5 15 10 20 0 inductance ( h) dc current (a) srp7028a-100m temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 00 .8 1.6 2.4 3.24 4.8 19.2 9.6 14.4 24 0 inductance ( h) dc current (a) srp7028a-150m temperature rise (c) 7 28 14 21 35 0 01 2 34 10 30 20 40 0 inductance ( h) dc current (a) SRP7028A-220M temperature rise (c) 30 10 20 70 80 90 40 50 60 100 0 00 .5 1 1.5 22 .5 15 45 30 60 0 inductance ( h) dc current (a) srp7028a-330m temperature rise (c) 10 40 20 30 50 0 01 0 20 30 40 50 0.06 0.12 0.18 0.24 0.30 0 inductance ( h) dc current (a) srp7028a-r15y temperature rise (c) 16 64 32 48 80 0 01 5 30 45 60 0.05 0.10 0.15 0.20 0 inductance ( h) dc current (a) srp7028a-r10m temperature rise (c) 10 20 30 80 40 50 60 70 90 100
srp7028a series - shielded power inductors specifcations 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 specifc applications. rev. 06/16 user direction of feed marking date code marking date code marking date code marking date code marking date code 4.0 (.157) 1.75 (.069) 2.0 (.079) dia. 1.5 0.1 (.059 .004) 7.5 0.1 (.295 .004) 16.0 0.3 (.630 .012) 12.0 0.1 (.472 .004) 16.0 0.5 (.630 .020) 2.0 0.5 (.079 .020) 100.0 2.0 (3.937 .079) 330 (12.99) dia. 13.5 0.5 (.531 .020) dia. 13.5 0.5 (.531 .020) dia. 16 (.630) 3 7.1 0.1 (.280 .004) 0.35 0.05 (.014 .002) 3.3 0.1 (.130 .004) 7.8 0.1 (.307 .004) packaging specifcations dimensions: mm (inches) qty: 1000 pcs. per reel 3312 - 2 mm smd trimming potentiometer
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