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100 6.80 0.20 (.268 .008) 7.30 (.287) 6.80 0.20 (.268 .008) 2.30 (.091) typ. 2.20 (.087) typ. 2.30 (.091) typ. 2.60 (.102) ref. 2.10 (.083) ref. 2.60 (.102) ref. 2.70 (.106) ref. ref. r 3.80 0.20 (.150 .008) features formerly model height of 4.0 mm max. current rating up to 3.5 a rohs compliant* applications input/output of dc/dc converters power supplies for: ? portable communication equipment ? camcorders ? lcd tvs ? car radios pm638s series - shielded smd power inductor *rohs directive 2002/95/ec jan 27 2003 including annex. speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications general speci cations test voltage .................... 0.1 v, 100 khz re ow soldering .... 230 ?c; 50 sec max. operating temperature ............................... -40 ? to +125 ? (temperature rise included) storage temperature .. -40 ? to +125 ? resistance to soldering heat ...............................260 ? for 10 sec. materials core material ................................ferrite wire ...........................enameled copper adhesive .............................epoxy resin terminal ................................... ag/ni/sn rated current ......ind. drop of 35 % typ. at isat temperature rise ....... 30 ?c typ. at irms packaging .................. 1000 pcs. per reel *rohs compliant dimensions: mm (inches) product dimensions electrical speci cations recommended layout j.w. miller inductance 100 khz test srf dcr q frequency typ. max. irms isat bourns part no. (?) tol. % ref. (mhz) (mhz) (m ) (a) (a) pm638s-3r3y-rc 3.3 ?0 9.8 7.96 75.9 20 3.50 3.60 pm638s-5r0y-rc 5.0 ?0 8.9 7.96 42.6 24 2.90 2.95 pm638s-6r2y-rc 6.2 ?0 9.0 7.96 42.3 27 2.50 2.60 pm638s-7r4y-rc 7.4 ?0 7.5 7.96 32.9 31 2.30 2.55 pm638s-8r2y-rc 8.2 ?0 7.4 7.96 29.6 34 2.20 2.45 pm638s-8r7y-rc 8.7 ?0 7.3 7.96 27.5 34 2.20 2.35 pm638s-100y-rc 10 ?0 8.8 2.52 24.9 38 2.00 2.05 pm638s-120y-rc 12 ?0 8.3 2.52 17.9 53 1.70 1.95 pm638s-150y-rc 15 ?0 8.6 2.52 18.0 57 1.60 1.90 pm638s-180y-rc 18 ?0 8.0 2.52 13.8 92 1.50 1.70 pm638s-220y-rc 22 ?0 8.8 2.52 13.9 96 1.30 1.60 pm638s-270y-rc 27 ?0 7.7 2.52 12.5 109 1.20 1.30 pm638s-330y-rc 33 ?0 8.6 2.52 12.5 124 1.10 1.20 pm638s-390y-rc 39 ?0 8.3 2.52 11.8 138 1.00 1.10 pm638s-470y-rc 47 ?0 8.5 2.52 10.4 155 0.95 1.00 pm638s-560y-rc 56 ?0 8.2 2.52 8.8 202 0.85 0.90 pm638s-680y-rc 68 ?0 7.4 2.52 7.5 234 0.75 0.87 pm638s-820y-rc 82 ?0 7.6 2.52 7.6 324 0.70 0.75 pm638s-101y-rc 100 ?0 6.7 0.796 6.2 358 0.65 0.68 soldering pro le temperature (c) 25 75 125 175 225 275 0 50 100 150 200 250 300 time (seconds) 120 - 150 seconds 60 - 90 seconds 260c peak 190c 150c 220c ramp down 6c/second maximum <1> 255c <1> maximum of 10 seconds between +255c and +260c ramp up 3c/second maximum 10 seconds minimum rev. 02/22/05 electrical schematic lcr meter
speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications pm638s series - shielded smd power inductor inductance vs. current 0123456 current (a) pm638s-3r3y-rc inductance ( h) 0 1 2 3 01 234 current (a) pm638s-5r0y-rc inductance ( h) 0 1 2 3 4 5 0123 4 current (a) pm638s-6r2y-rc inductance ( h) 0 1 2 3 4 7 5 6 01234 current (a) pm638s-7r4y-rc inductance ( h) 0 2 4 6 8 0 0.5 1 1.5 2 2.5 3 current (a) pm638s-8r7y-rc inductance ( h) 0 2 4 6 10 8 0 0.5 1 1.5 2 2.5 3 current (a) pm638s-100y-rc inductance ( h) 0 2 4 6 12 10 8 0 0.5 1 1.5 2 2.5 3 current (a) pm638s-120y-rc inductance ( h) 0 2 4 6 12 14 10 8 0 0.5 1 1.5 2 2.5 current (a) pm638s-150y-rc inductance ( h) 0 2 4 6 12 14 16 10 8 0 0.5 1 1.5 2 current (a) pm638s-180y-rc inductance ( h) 0 3 6 15 18 21 12 9 0 0.5 1 1.5 2 current (a) pm638s-220y-rc inductance ( h) 0 5 10 25 20 15 0 0.5 1 1.5 2 current (a) pm638s-270y-rc inductance ( h) 0 5 10 30 20 25 15 0 0.5 1 1.5 current (a) pm638s-330y-rc inductance ( h) 0 10 20 30 40
pm638s series - shielded smd power inductor inductance vs. current speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications 0 0.5 1 1.5 current (a) pm638s-390y-rc inductance ( h) 0 10 20 30 40 0 0.5 1 1.5 current (a) pm638s-470y-rc inductance ( h) 0 10 20 30 40 50 60 0 0.2 0.4 0.6 0.8 1 current (a) pm638s-560y-rc inductance ( h) 0 10 20 30 40 50 60 0 0.2 0.4 0.6 0.8 1 current (a) pm638s-680y-rc inductance ( h) 0 20 40 60 80 0 0.2 0.4 0.6 0.8 1 current (a) pm638s-820y-rc inductance ( h) 0 20 40 60 80 100 0 0.2 0.4 0.6 0.8 1 current (a) pm638s-101y-rc inductance ( h) 0 20 40 60 80 120 100
speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications pm638s series - shielded smd power inductor packaging speci cations rev. 10/08 18.0 + 0 (.709 + 0) 22.4 (.882) 2.0 0.5 (.079 .020) 50.0 - 0 (1.969 - 0) 330.0 (12.99) dia. 13.0 0.5 (.512 .020) dia. 13.0 0.5 (.512 .020) dia. 21.0 0.8 (.827 .032) start end 4.0 (.157) 12.0 (.472) 200 (7.87) no component no component components 400 (15.75) user direction of feed 100 100 100 100 qty: 1000 pcs. per reel dimensions: mm (inches)

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