features shielded construction inductance range: 10 to 1000 h heating current up to 2.1 a dimensions: 7.3 x 7.3 x 4.5 mm aec-q200 quali ed rohs compliant* and halogen free** applications automotive systems: - driver assistant - entertainment - information - lighting dc/dc converters power supplies srr0745a series - shielded power inductors operating temperature ................................-40 ? to +125 ? (temperature rise included) storage temperature ................................-40 ? to +125 ? resistance to solder heat ............................. +250 ? for 10 sec. temperature rise .......................40 ? typ. at rated i rms inductance drop ...................25 % at isat electrical speci cations @ 25 ? general speci cations core ..............................................ferrite wire ............................enameled copper terminal finish ...................................sn packaging .................. 1000 pcs. per reel materials product dimensions *rohs compliant & aec-q200 qualified dimensions: mm (inches) * 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. asia-paci c: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 emea: tel: +36 88 520 390 ?fax: +36 88 520 211 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com recommended layout bourns part number inductance @ 1 khz / 1 v dcr ( ) max. i rms (a) i sat (a) l (?) tol. (%) srr0745a-100m 10 ?0 0.052 2.1 2.5 srr0745a-120m 12 ?0 0.062 2.0 2.3 srr0745a-150m 15 ?0 0.075 1.9 2.1 srr0745a-180m 18 ?0 0.09 1.8 1.95 srr0745a-220m 22 ?0 0.096 1.65 1.75 srr0745a-270m 27 ?0 0.13 1.45 1.62 srr0745a-330m 33 ?0 0.15 1.35 1.45 srr0745a-390m 39 ?0 0.19 1.17 1.3 srr0745a-470m 47 ?0 0.21 1.05 1.2 srr0745a-560m 56 ?0 0.24 0.95 1.1 srr0745a-680m 68 ?0 0.3 0.86 0.96 srr0745a-820m 82 ?0 0.4 0.78 0.9 srr0745a-101m 100 ?0 0.45 0.7 0.78 srr0745a-121m 120 ?0 0.55 0.6 0.7 srr0745a-151m 150 ?0 0.76 0.48 0.58 srr0745a-181m 180 ?0 0.82 0.46 0.54 srr0745a-221m 220 ?0 0.95 0.42 0.5 SRR0745A-271M 270 ?0 1.2 0.38 0.46 srr0745a-331m 330 ?0 1.5 0.34 0.4 srr0745a-391m 390 ?0 1.85 0.32 0.36 srr0745a-471m 470 ?0 2.2 0.29 0.34 srr0745a-561m 560 ?0 2.6 0.26 0.3 srr0745a-681m 680 ?0 2.8 0.24 0.28 srr0745a-821m 820 ?0 3.5 0.22 0.26 srr0745a-102m 1000 ?0 4.1 0.2 0.24 7.30 0.2 (.287 .008) 7.30 0.2 (.287 .008) 4.50 0.2 (.177 .008) 4.60 (.181) typ. typ. 2.00 (.079) 2.40 (.094) 1.50 (.059) 1.50 (.059) 4.80 (.189) electrical schematic how to order srr0745a - 100m model value code (see table)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 1.2 1.5 1.8 0.9 0.6 0.3 0.0 1.66 2.00 1.33 1.00 0.33 0.67 0.0 idc (a) l (h) idc (a) t (c) l @ 25 c l @ 125 c t @ 25 c 0.0 20.0 40.0 60.0 80.0 0.0 60.0 30.0 90.0 120.0 0.9 1.2 0.6 0.3 0.0 1.00 1.20 1.40 0.80 0.40 0.60 0.20 0.0 idc (a) l (h) idc (a) t (c) l @ 25 c l @ 125 c t @ 25 c 0.0 20.0 40.0 60.0 80.0 0.0 100.0 150.0 200.0 50.0 250.0 0.8 0.6 0.4 0.2 0.0 1.00 0.60 0.80 0.40 0.20 0.0 idc (a) l (h) idc (a) t (c) l @ 25 c l @ 125 c t @ 25 c 0.0 10.0 20.0 30.0 40.0 50.0 60.0 srr0745a-470m srr0745a-101m srr0745a-221m srr0745a-470m srr0745a-101m srr0745a-221m srr0745a series - shielded power inductors inductance vs. idc 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. temperature rise vs. idc
3312 - 2 mm smd trimming potentiometer srr0745a series - shielded power inductors 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. packaging speci cations 11/14 soldering pro le user direction of feed 200 (7.87) no component no component components 400 (15.75) start 4.0 (.157) 12.0 (.472) end dimensions: mm (inches) qty: 1000 pcs. per reel 16.0 (.630) 18 +0 (.709 +0) 22.4 (.882) 2.0 0.5 (.079 .020) 50.0 -0 (1.97 -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) 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.
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