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SMDR0402-470K Datasheet(PDF) 1 Page - MERITEK ELECTRONICS CORPORATION |
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SMDR0402-470K Datasheet(HTML) 1 Page - MERITEK ELECTRONICS CORPORATION |
1 / 4 page 1 MERITEK Unshielded SMT Power Inductors SMDR Series SMDR 0402/0802/0804/0810/1206 TYPE • I sat: The current when the inductance becomes 10% lower than its initial value. (Ta = 20 ºC) • I rms: The current when temperature of coil increases up to Max. T = 40 ºC (Ta = 20 ºC) • Operating temperature: -40 to 85 ºC CHARACTERISTICS • High power, high saturation, low resistence • Ideal inductors for DC-DC conversion in notebook computer, PDAs, Step-up or step-down converters, flash memory programmers, etc. • SMDR0402 used ceramic base with gold-planting • The others used LCP plastic base FEATURES SMDR0402..........1.0 ~ 1000 uH.............2.9 ~ 0.07A SMDR0802..........10 ~ 1000 uH..............2.0 ~ 0.05A SMDR0804..........1.0 ~ 1000 uH.............6.8 ~ 0.030A SMDR0810..........10 ~ 1000 uH..............3.5 ~ 0.10A SMDR1206..........1.0 ~ 1000 uH.............8.6 ~ 0.56A INDUCTANCE AND RATED CURRENT RANGES Test Equipments: • L: Agilent 4284A LCR meter @ 100kHz 0.1V • DC Resistance: Milli - ohm meter or equivalent • SRF: Agilant 4291 B RF Impedance Analyzer • Electrical specifications at 25 ºC • Portable telephones • Personable computers • DC/DC converters, etc. • Other various electronic appliances APPLICATIONS SMDR Meritek Series 0802 Size (in mm) Code 0402 0802 0804 0810 1206 See corresponded dimensions chart Inductance (uH) First two digits are significant figures Third Digit denotes number of Zeros 470 - Tolerance Code K M 10% 20% ± ± M PART NUMBERING SYSTEM (1) Type: Surface Mount (2) Style: DR Core OD =8.5mm H=4.0mm (3) Inductance: 470 for 47uH (4) Inductance Tolerance: K : ±10%; M : ±20% ORDERING INFORMATION SM DR0804 - 470 M (1) (2) (3) (4) ITEM A (MAX) B (MAX) C (MAX) D E F H I J SMDR0402 6.60 4.45 2.82 4.32 1.27 1.02 3.56 1.40 4.06 SMDR0802 12.95 9.40 3.50 7.62 2.54 2.54 2.79 2.92 7.37 SMDR0804 12.95 9.40 5.21 7.62 2.54 2.54 2.79 2.92 7.37 SMDR0810 12.95 9.40 11.43 7.62 2.54 2.54 2.79 2.92 7.37 SMDR1206 18.54 15.24 7.11 12.70 2.54 2.54 2.79 2.92 12.45 Shape and Size: (Dimensions are in mm) |
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