s m t p o w e r i n d u c t o r sig4012 t ype rohs compliant. halogen free compliant. and low dcr. low profile (1.2mm max. height ), smd type. shieldedself-leads, suitable for high density mounting. high energy storage provided with embossed carrier tape packing. ideal for power source circuits, dc-dc converter, dc-ac inverters inductor applications.in addition to the standard versions shown here, customized inductors are available to meet your exact requirements. features delt a electronics, inc. (taoyuan plant cpbg) 252, san ying road, kueisan industrial zone, taoyuan shien, 333, taiwan, r .o.c. tel: 886-3-3591968; fax: 886-3-3591991http://www.deltaww .com 23 1. t olerance of inductance: 20% for 1.0~47.0uh. 2. isat is the dc current which cause the inductance drop 30% typical of its nominal inductance without current. 3. ir is the dc current which cause the surface temperature of the part increase less than 40 4. rated current : value obtained when current flows and the temperature has risen to 40 o c. o c or when dc current flows and the nominal value of inductance has fallen by 30%, whichever is smaller. oo 5. operating temperature: -40 c to 125 c (including self-temperature rise). mechanical dimension: unit : mm/inch a = 3.9 0.2 / 0.154 0.008 c = 1.2/ 0.047 max. d = 1.2 0.2 / 0.047 0.008 e = 2.5 0.2 / 0.098 0.008 b = 3.9 0.2 / 0.154 0.008 recommended pad pa tterns electrical characteristics: 25 : 1mhz, 1.0v o c d c r (m ) m ax . ir (a dc ) 3 is at (a dc ) 2 l (u h ) 1 part no. sig4012 - 1r0 1.0 60 2.80 3.10 sig4012 - 1r5 1.5 70 2.40 2.80 sig4012 - 2r2 2.2 80 1.90 2.60 sig4012 - 3r3 3.3 102 1.60 2.30 sig4012 - 4r7 4.7 126 1.40 1.80 sig4012 - 6r8 6.8 156 1.20 1.70 sig4012 - 8r2 8.2 190 1.10 1.40 sig4012 - 100 10.0 240 1.00 1.30 sig4012 - 220 22.0 492 0.70 0.95 sig4012 - 330 33.0 780 0.53 0.60 sig4012 - 470 47.0 1020 0.46 0.50 d b c a d e 2.8 1.2 3.7
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