features n semi-shielded construction n inductance range: 1 to 150 h n rated current up to 3.2 a n aec-q200 qualifed n rohs compliant* and halogen free** srn4018ta series - semi-shielded power inductors *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. operating temperature ................................. -40 c to +125 c (t emperature rise included) storage temperature .. -40 c to +125 c temperature rise ..... 40 c at rated irms rated current ............ inductance drops 30 % at isat failure in time (fit) ........ 24.7/10 9 hours mean time between failures (mtbf) .................................. 40.4 x 10 6 hours electrical specifcations @ 25 c bourns part no. inductance @ 100 khz / 1 v q (min.) @ 100 khz srf (mhz) typ. dcr (w) 20 % irms (a) isat (a) l ( m h) tol. % srn4018ta-1r0m 1.0 20 10 145 0.027 3.2 4 srn4018ta-1r2m 1.2 20 10 140 0.028 3 3.6 srn4018ta-1r5m 1.5 20 10 115 0.032 2.7 3.3 srn4018ta-2r2m 2.2 20 10 90 0.042 2.2 3 srn4018ta-3r3m 3.3 20 10 72 0.055 2 2.3 srn4018ta-4r7m 4.7 20 10 58 0.07 1.7 2 srn4018ta-6r8m 6.8 20 10 46 0.098 1.45 1.6 SRN4018TA-100M 10 20 10 40 0.15 1.2 1.3 srn4018ta-150m 15 20 10 30 0.23 0.9 1.1 srn4018ta-220m 22 20 10 26 0.29 0.75 0.9 srn4018ta-330m 33 20 10 20 0.405 0.65 0.7 srn4018ta-470m 47 20 10 17 0.585 0.58 0.6 srn4018ta-680m 68 20 10 15 0.89 0.48 0.52 srn4018ta-101m 100 20 10 4 1.38 0.34 0.42 srn4018ta-151m 150 20 10 4 1.97 0.27 0.31 general specifcations core .............................................. ferrite wire ............................ enameled copper t erminal finish ................................... sn coating ................. magnetic epoxy resin packaging ..... 3000 pcs. per 13-inch reel materials product dimensions recommended layout dimensions: mm (inches) electrical schematic how to order srn4018t a - 100m model value code (see table) *rohs compliant *rohs compliant & aec approved *rohs compliant aec approved (select models) lead free *rohs compliant versions available lead free versions are rohs compliant* soldering profle 25 temperature (c) time (seconds) preheating soldering natural cooling 217 c t p (245 c, 20~40 sec.) 200 c 150c 60~180 sec. 480 sec. max. 60~150 sec. t p (260 c, 10 sec. max.) 0.9 (.035) 4.3 (.169) ref. 4.0 0.3 (.157 .012) 4.0 0.3 (.157 .012) 4.3 (.169) ref. ref. 1.0 max. 1.8 (.071) 1.65 0.2 (.065 .008) applications n automotive systems: - driver assistant - infotainment - lighting n dc/dc converters n power supplies n digital video cameras n hdds n smartphones n televisions, lcd displays
srf0504 series - line filter inductance vs. current 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. srn4018ta series - semi-shielded power inductors 0 0 0.88 1.76 2.64 3.52 4.40 0.4 0.8 1.2 1.6 2.0 0.4 0.8 1.2 1.6 2.0 0.4 0.8 1.2 1.6 2.0 0 inductance ( h) dc current (a) srp4018ta-1r0m temperature rise (c) 12 3 6 9 15 0 0 0.72 1.44 2.16 2.88 3.60 0 inductance ( h) dc current (a) srp4018ta-1r2m temperature rise (c) 16 4 8 12 20 0 0 0.7 1.4 2.1 2.83 .5 0 inductance ( h) dc current (a) srp4018ta-1r5m temperature rise (c) 13.6 3.4 6.8 10.2 17.0 0 0 0.64 1.28 1.92 2.56 3.2 0.8 1.6 2.4 3.2 4.0 0 inductance ( h) dc current (a) srp4018ta-2r2m temperature rise (c) 10.4 2.6 5.2 7.8 13.0 0 0 0.5 1.0 1.5 2.02 .5 1.2 2.4 3.6 4.8 6.0 0 inductance ( h) dc current (a) srp4018ta-3r3m temperature rise (c) 14.4 3.6 7.2 10.8 18.0 0 0 0.44 0.88 1.32 1.76 2.20 1.6 3.2 4.8 6.4 8.0 0 inductance ( h) dc current (a) srp4018ta-4r7m temperature rise (c) 8.8 2.2 4.4 6.6 11.0 0 0 0.36 0.72 1.08 1.44 1.80 2.4 4.8 7.2 9.6 12.0 0 inductance ( h) dc current (a) srp4018ta-6r8m temperature rise (c) 7.2 1.8 3.6 5.4 9.0 0 0 0.3 0.6 0.9 1.21 .5 3.6 7.2 10.8 14.4 18.0 0 inductance ( h) dc current (a) srp4018ta-100m temperature rise (c) 9.6 2.4 4.8 7.2 12.0 0 0 0.22 0.44 0.66 0.88 1.10 4 8 12 16 20 0 inductance ( h) dc current (a) srp4018ta-150m temperature rise (c) 22.4 5.6 11.2 16.8 28.0 0 0 0.18 0.36 0.54 0.72 0.90 8.8 17.6 26.4 35.2 44.0 0 inductance ( h) dc current (a) srp4018ta-220m temperature rise (c) 6.4 1.6 3.2 4.8 8.0 0 0 0.16 0.32 0.48 0.64 0.80 10 20 30 40 50 0 inductance ( h) dc current (a) srp4018ta-330m temperature rise (c) 16 4 8 12 20 0 0 0.12 0.24 0.36 0.48 0.60 14 28 42 56 70 0 inductance ( h) dc current (a) srp4018ta-470m temperature rise (c) 16 4 8 12 20 0 0 0.11 0.22 0.33 0.44 0.55 20 40 60 80 100 0 inductance ( h) dc current (a) srp4018ta-680m temperature rise (c) 16 4 8 12 20 0 0 0.084 0.168 0.252 0.336 0.420 30 60 90 120 150 0 inductance ( h) dc current (a) srp4018ta-101m temperature rise (c) 24 6 12 18 30 0 0 0.066 0.132 0.198 0.264 0.330 40 80 120 160 200 0 inductance ( h) dc current (a) srp4018ta-151m temperature rise (c) 24 6 12 18 30
user direction of feed 4.0 0.1 (.157 .004) 2.0 0.1 (.079 .004) 1.75 0.1 (.069 .004) 5.5 0.1 (.217 .004) 12.0 0.1 (.472 .004) 8.0 0.1 (.315 .004) 12.5 0.5 (.492 .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. dia. 1.5 +0.1/-0.0 (.059 +.004/-.000) 1.0 1.0 1.0 1.0 3 30 0.35 0.05 (.014 .002) 4.4 0.1 (.173 .004) 2.0 0.1 (.079 .004) srf0504 series - line filter specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applic ations and actual device performance may vary over time. users should verify actual device performance in their specifc applications. srn4018ta series - semi-shielded power inductors packaging specifcations dimensions: mm (inches) qty: 3000 pcs. per reel 11/16 inductance vs. current 0 0 0.88 1.76 2.64 3.52 4.40 0.4 0.8 1.2 1.6 2.0 0.4 0.8 1.2 1.6 2.0 0.4 0.8 1.2 1.6 2.0 0 inductance ( h) dc current (a) srp4018ta-1r0m temperature rise (c) 12 3 6 9 15 0 0 0.72 1.44 2.16 2.88 3.60 0 inductance ( h) dc current (a) srp4018ta-1r2m temperature rise (c) 16 4 8 12 20 0 0 0.7 1.4 2.1 2.83 .5 0 inductance ( h) dc current (a) srp4018ta-1r5m temperature rise (c) 13.6 3.4 6.8 10.2 17.0 0 0 0.64 1.28 1.92 2.56 3.2 0.8 1.6 2.4 3.2 4.0 0 inductance ( h) dc current (a) srp4018ta-2r2m temperature rise (c) 10.4 2.6 5.2 7.8 13.0 0 0 0.5 1.0 1.5 2.02 .5 1.2 2.4 3.6 4.8 6.0 0 inductance ( h) dc current (a) srp4018ta-3r3m temperature rise (c) 14.4 3.6 7.2 10.8 18.0 0 0 0.44 0.88 1.32 1.76 2.20 1.6 3.2 4.8 6.4 8.0 0 inductance ( h) dc current (a) srp4018ta-4r7m temperature rise (c) 8.8 2.2 4.4 6.6 11.0 0 0 0.36 0.72 1.08 1.44 1.80 2.4 4.8 7.2 9.6 12.0 0 inductance ( h) dc current (a) srp4018ta-6r8m temperature rise (c) 7.2 1.8 3.6 5.4 9.0 0 0 0.3 0.6 0.9 1.21 .5 3.6 7.2 10.8 14.4 18.0 0 inductance ( h) dc current (a) srp4018ta-100m temperature rise (c) 9.6 2.4 4.8 7.2 12.0 0 0 0.22 0.44 0.66 0.88 1.10 4 8 12 16 20 0 inductance ( h) dc current (a) srp4018ta-150m temperature rise (c) 22.4 5.6 11.2 16.8 28.0 0 0 0.18 0.36 0.54 0.72 0.90 8.8 17.6 26.4 35.2 44.0 0 inductance ( h) dc current (a) srp4018ta-220m temperature rise (c) 6.4 1.6 3.2 4.8 8.0 0 0 0.16 0.32 0.48 0.64 0.80 10 20 30 40 50 0 inductance ( h) dc current (a) srp4018ta-330m temperature rise (c) 16 4 8 12 20 0 0 0.12 0.24 0.36 0.48 0.60 14 28 42 56 70 0 inductance ( h) dc current (a) srp4018ta-470m temperature rise (c) 16 4 8 12 20 0 0 0.11 0.22 0.33 0.44 0.55 20 40 60 80 100 0 inductance ( h) dc current (a) srp4018ta-680m temperature rise (c) 16 4 8 12 20 0 0 0.084 0.168 0.252 0.336 0.420 30 60 90 120 150 0 inductance ( h) dc current (a) srp4018ta-101m temperature rise (c) 24 6 12 18 30 0 0 0.066 0.132 0.198 0.264 0.330 40 80 120 160 200 0 inductance ( h) dc current (a) srp4018ta-151m temperature rise (c) 24 6 12 18 30
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