features n shielded construction n inductance range: 1 to 47 h n heating current up to 5.1 a n aec-q200 qualifed n rohs compliant* and halogen free** applications n automotive systems: - driver assistant - infotainment - lighting n dc/dc converters n power supplies srr4818a series - shielded power inductors operating temp. ......... -40 c to +150 c (temperature rise included) storage temperature .. -40 c to +150 c temperature rise ..................... 20 c typ. at rated irms 1 40 c typ. at rated irms 2 rated current ............ inductance drops 35 % at isat moisture sensitivity level ..................... 1 esd classifcation (hbm) .................n/a electrical specifcations @ 25 c general specifcations core .............................................. ferrite wire ............................ enameled copper terminal finish ................................... sn packaging ......... 800 pcs. per 7-inch reel materials product dimensions dimensions: mm (inches) bourns part number inductance @ 100 khz/0.1 v srf (mhz) typ. dcr (mw) i rms 1 (a) typ. i rms 2 (a) typ. i sat (a) typ. l (h) tol. (%) typ. max. srr4818a-1r0y 1.0 30 140 19.2 25.0 4.00 5.10 3.60 srr4818a-1r5y 1.5 30 105 25.2 35.0 3.75 4.70 3.00 srr4818a-2r2y 2.2 30 90 33.7 45.0 2.70 3.50 2.43 srr4818a-3r3y 3.3 30 70 42.8 55.0 2.50 3.10 2.10 srr4818a-3r9y 3.9 30 65 54.5 70.0 2.20 2.70 1.90 srr4818a-4r7y 4.7 30 55 59.4 80.0 2.00 2.60 1.50 srr4818a-5r6y 5.6 30 50 74.3 90.0 1.75 2.30 1.35 srr4818a-6r8y 6.8 30 45 82.1 100.0 1.65 2.20 1.25 srr4818a-8r2y 8.2 30 43 97.7 130.0 1.55 1.90 1.15 srr4818a-100m 10 20 40 109.8 140.0 1.45 1.80 1.05 SRR4818A-120M 12 20 37 132.2 170.0 1.30 1.60 0.95 srr4818a-150m 15 20 30 176.7 220.0 1.25 1.50 0.87 srr4818a-180m 18 20 28 214.8 280.0 1.10 1.40 0.79 srr4818a-220m 22 20 25 280.3 360.0 1.00 1.25 0.72 srr4818a-270m 27 20 22 317.6 400.0 0.90 1.15 0.63 srr4818a-330m 33 20 20 399.1 500.0 0.70 0.90 0.56 srr4818a-390m 39 20 17 439.3 540.0 0.63 0.80 0.53 srr4818a-470m 47 20 16 504.1 630.0 0.60 0.75 0.47 *rohs compliant *rohs compliant & aec approved *rohs compliant aec approved (select models) lead free *rohs compliant versions available lead free versions are rohs compliant* recommended layout electrical schematic how to order srr4818a - 1r0y model value code (see table) 4.20 (.165) 4.80 0.20 (.189 .008) 4.80 0.20 (.189 .008) 1.80 0.20 (.071 .008) 1.60 0.20 (.063 .008) 1.17 (.046) 1.60 0.20 (.063 .008) 1.60 0.20 (.063 .008) 1.98 (.078) 1.98 (.078) marked line indicates winding starting terminal *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. 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. 4.20 (.165) 4.80 0.20 (.189 .008) 4.80 0.20 (.189 .008) 1.80 0.20 (.071 .008) 1.60 0.20 (.063 .008) 1.17 (.046) 1.60 0.20 (.063 .008) 1.60 0.20 (.063 .008) 1.98 (.078) 1.98 (.078) marked line indicates winding starting terminal dimensions: mm (inches)
srf0504 series - line filter inductance vs. idc srr4818a 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. idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 01 23 4 srr4818a-1r0y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-1r5y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-2r2y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.325 0.650 0.975 1.300 srr4818a-8r2y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 1.2 srr4818a-100m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 SRR4818A-120M idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 srr4818a-150m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.15 0.30 0.45 0.60 0.900.75 srr4818a-180m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 srr4818a-220m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-330m idc (a) 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-390m idc (a) 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-470m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-3r3y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-3r9y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.34 0.68 1.02 1.36 1.70 srr4818a-4r7y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.3 0.6 0.9 1.2 1.5 srr4818a-5r6y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.325 0.650 0.975 1.300 srr4818a-6r8y idc (a) l/loa l/loa l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 srr4818a-270m
srf0504 series - line filter inductance vs. idc (continued) srr4818a 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. temperature vs. idc idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 01 23 4 srr4818a-1r0y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-1r5y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-2r2y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.325 0.650 0.975 1.300 srr4818a-8r2y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 1.2 srr4818a-100m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 SRR4818A-120M idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 1.0 srr4818a-150m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.15 0.30 0.45 0.60 0.900.75 srr4818a-180m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.2 0.4 0.6 0.8 srr4818a-220m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-330m idc (a) 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-390m idc (a) 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 srr4818a-470m idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-3r3y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.6 1.2 1.8 2.4 srr4818a-3r9y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.34 0.68 1.02 1.36 1.70 srr4818a-4r7y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.3 0.6 0.9 1.2 1.5 srr4818a-5r6y idc (a) l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.325 0.650 0.975 1.300 srr4818a-6r8y idc (a) l/loa l/loa l/loa 60% 80% 100% 120% 0% 20% 40% 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 srr4818a-270m idc (a) t (c) 30 40 50 0 10 20 01 23 45 6 srr4818a-1r0y idc (a) t (c) 30 40 0 10 20 01 23 45 srr4818a-1r5y idc (a) t (c) 24 32 40 0 8 16 0 0.7 1.4 2.1 2.8 3.5 srr4818a-2r2y idc (a) t (c) 30 40 50 0 10 20 0 0.7 1.4 2.1 2.8 3.5 srr4818a-3r3y idc (a) t (c) 30 40 50 0 10 20 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-3r9y idc (a) t (c) 30 40 50 0 10 20 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-4r7y idc (a) t (c) 36 48 60 0 12 24 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-5r6y idc (a) t (c) 30 40 50 0 10 20 0 0.6 1.2 1.8 2.4 srr4818a-6r8y idc (a) t (c) 24 32 40 0 8 16 0 0.5 1.0 1.5 2.0 srr4818a-8r2y idc (a) t (c) 30 40 50 0 10 20 0 0.4 0.8 1.2 1.6 2.0 srr4818a-100m idc (a) t (c) 36 48 60 0 12 24 0 0.4 0.8 1.2 1.6 2.0 SRR4818A-120M idc (a) t (c) 24 32 40 0 8 16 0 0.3 0.6 0.9 1.2 1.5 1.8 srr4818a-150m idc (a) t (c) 36 48 60 0 12 24 0 0.3 0.6 0.9 1.2 1.5 1.8 srr4818a-180m idc (a) t (c) 30 40 50 0 10 20 0 0.3 0.6 0.9 1.2 1.5 srr4818a-220m idc (a) t (c) 30 40 50 0 10 20 0 0.2 0.4 0.6 0.8 1.0 srr4818a-330m idc (a) t (c) 36 48 60 0 12 24 0 0.2 0.4 0.6 0.8 1.0 srr4818a-390m idc (a) t (c) 30 40 50 0 10 20 0 0.15 0.30 0.45 0.60 0.75 0.90 srr4818a-470m idc (a) t (c) 30 40 50 0 10 20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 srr4818a-270m
srf0504 series - line filter temperature vs. idc (continued) srr4818a 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. idc (a) t (c) 30 40 50 0 10 20 01 23 45 6 srr4818a-1r0y idc (a) t (c) 30 40 0 10 20 01 23 45 srr4818a-1r5y idc (a) t (c) 24 32 40 0 8 16 0 0.7 1.4 2.1 2.8 3.5 srr4818a-2r2y idc (a) t (c) 30 40 50 0 10 20 0 0.7 1.4 2.1 2.8 3.5 srr4818a-3r3y idc (a) t (c) 30 40 50 0 10 20 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-3r9y idc (a) t (c) 30 40 50 0 10 20 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-4r7y idc (a) t (c) 36 48 60 0 12 24 0 0.5 1.0 1.5 2.0 2.5 3.0 srr4818a-5r6y idc (a) t (c) 30 40 50 0 10 20 0 0.6 1.2 1.8 2.4 srr4818a-6r8y idc (a) t (c) 24 32 40 0 8 16 0 0.5 1.0 1.5 2.0 srr4818a-8r2y idc (a) t (c) 30 40 50 0 10 20 0 0.4 0.8 1.2 1.6 2.0 srr4818a-100m idc (a) t (c) 36 48 60 0 12 24 0 0.4 0.8 1.2 1.6 2.0 SRR4818A-120M idc (a) t (c) 24 32 40 0 8 16 0 0.3 0.6 0.9 1.2 1.5 1.8 srr4818a-150m idc (a) t (c) 36 48 60 0 12 24 0 0.3 0.6 0.9 1.2 1.5 1.8 srr4818a-180m idc (a) t (c) 30 40 50 0 10 20 0 0.3 0.6 0.9 1.2 1.5 srr4818a-220m idc (a) t (c) 30 40 50 0 10 20 0 0.2 0.4 0.6 0.8 1.0 srr4818a-330m idc (a) t (c) 36 48 60 0 12 24 0 0.2 0.4 0.6 0.8 1.0 srr4818a-390m idc (a) t (c) 30 40 50 0 10 20 0 0.15 0.30 0.45 0.60 0.75 0.90 srr4818a-470m idc (a) t (c) 30 40 50 0 10 20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 srr4818a-270m
qty: 800 pcs. per reel packaging specifcations dimensions: mm (inches) 14.0 +0 (.551 +0) 16.5 (.650) 2.0 0.5 (.079 .020) 50.0 -0 (1.969 - 0) 178 (7.001) dia. dia. 13.0 (.512) 13.0 (.512) dia. 21.0 0.8 (.827 .031) 12.0 (.472) co mp on ents 20 0m /m min. le ad er no co mponen t tr ai ler 40 0m /m min. no co mponen t start end 2.0 (.079) 8.0 (.315) user direction of feed 10 0 10 0 10 0 10 0 co mp on ents 20 0m /m min. le ad er no co mponen t tr ai ler 40 0m /m min. no co mponen t start end 2.0 (.079) 8.0 (.315) user direction of feed 10 0 10 0 10 0 10 0 srf0504 series - line filter srr4818a 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. 08/17 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 50 150 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 25 0 peak temperature: 260 c 217 c 60~120 sec. 60 sec. max. 60~150 sec. 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 50 150 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 25 0 peak temperature: 260 c 217 c 60~120 sec. 60 sec. max. 60~150 sec.
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