1812 sdf series ? smd square drum induc tors rev. a a. electrical specifications: part no. mark l (uh) tolerance test freq. srf typ. (mhz) dcr max. ( ? ) idc max. (a) 1812sdf - 1r0_ 1r0 1.00 m 1.0 khz 100 0.08 1.080 1812sdf - 1r5_ 1r5 1.50 m 1.0 khz 85.0 0.09 1.000 1812sdf - 2r2_ 2r2 2.20 m 1.0 khz 60.0 0.11 0. 900 1812sdf - 3r3_ 3r3 3.30 m 1.0 khz 47.0 0.13 0.800 1812sdf - 4r7_ 4r7 4.70 m, k 1.0 khz 35.0 0.15 0.750 1812sdf - 6r8_ 6r8 6.80 m, k 1.0 khz 30.0 0.20 0.720 1812sdf - 100_ 100 10.0 k, j 1.0 khz 23.0 0.24 0.650 1812sdf - 150_ 150 15.0 k, j 1.0 khz 20.0 0.32 0 .570 1812sdf - 220_ 220 22.0 k, j 1.0 khz 15.0 0.60 0.420 1812sdf - 330_ 330 33.0 k, j 1.0 khz 12.0 1.00 0.310 1812sdf - 470_ 470 47.0 k, j 1.0 khz 10.0 1.10 0.280 1812sdf - 680_ 680 68.0 k, j 1.0 khz 8.4 1.07 0.220 1812sdf - 101_ 101 100 k, j 1.0 khz 6.8 2.20 0.190 1812sdf - 151_ 151 150 k, j 1.0 khz 5.5 3.50 0.130 1812sdf - 221_ 221 220 k, j 1.0 khz 4.5 4.00 0.110 1812sdf - 331_ 331 330 k, j 1.0 khz 3.6 6.80 0.100 1812sdf - 471_ 471 470 k, j 1.0 khz 3.0 8.50 0.090 b. dimensions: mm (in ch ) series a b c d e f type 1812sdf 4.5 (0.177) 3.2 (0.126) 2.6 (0.102) 1.0 (0.039) 1.0 (0.039) 4.0 (0.157) 2 tol 0.30 (0.012) 0.30 (0.012) 0.30 (0.012) min. min. ref. type 2 b. general information: 1. p/n: 1812sdf -xxx_ : ?1812sdf ? = type, ?xxx? = indu ctance, ? _ ? = tolerance . 2. tolerance ?_? : j = 5%, k = 10%, m = 20%. 3. operating temperature: - 25oc to +85oc. 4. electrical specifications at +25oc. 5. inductance measured on the hp4284a lcr meter 6. dcr measured on the 502bc milli - ohm meter. 7. i dc: inductance dr ops no more than 10% at rated current or the ? t 40oc. 8. temperature rise t < 40oc (typical) at rated current and room temperature 20oc. 9. inductance and current ran ge: from 1.0 uh (1080 ma) to 470 uh (9 0 ma) 10. srf: from 3.0 mhz to 100 mhz 11. tape and reel packing. 12. suitable for ir re - flows soldering. 13. msl: level 1. c. applications : 1. power supply line chokes. 2. dc - dc converters. 3. notebooks. 4. filters. 5. telecommunication devices. frontier electronics corp. ? page 1 of 1 667 e. coch ran st. , simi v alley, ca 93065 http://www.frontierusa.com phone: 1 - 805 - 522 - 9998, fax: 1 - 805 - 522 - 9989
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