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| Fixed Inductors for Surface Mounting DB320C Inductance Range: 3.9~27H DIMENSIONS Recommended patterns 4.0 Max. 2.0 Max. 1. 0 1.5 2 4. .6 1 Direction indication 2.2 (Unit: mm) 5.1 (Unit: mm) FEATURES * Low profile (4.0mm Max. square and 2.0mm Max. height). * Magnetically shielded construction and low DC resistance. * Ideal for DC-DC converter choke coil for portable equipments (DVD, DSC, Cellular phone, PDA ). * RoHS compliant. * * * * SELECTION GUIDE FOR STANDARD COILS TYPE DB320C (Quantity/reel; 2,000 PCS) TOKO Part Number A993AS-3R9M A993AS-4R7M A993AS-5R6M A993AS-6R8M A993AS-8R2M A993AS-100M A993AS-120M A993AS-150M A993AS-180M A993AS-220M A993AS-270M Inductance (1) (H) 3.9 4.7 5.6 6.8 8.2 10.0 12.0 15.0 18.0 22.0 27.0 Tolerance (%) 20 20 20 20 20 20 20 20 20 20 20 DC Resistance (2) () Max. (Typ.) 0.08 (0.07) 0.10 (0.08) 0.11 (0.09) 0.12 (0.10) 0.14 (0.12) 0.16 (0.13) 0.19 (0.16) 0.24 (0.20) 0.29 (0.24) 0.37 (0.31) 0.48 (0.40) Inductance Decrease Current(3) Temperature Rise Current(3) (A) Max. (Typ.) T=40C L L L =10% L =30% (A) Max. (Typ.) 0.86 (1.15) 0.85 (1.14) 0.73 (0.97) 0.70 (0.93) 0.66 (0.88) 0.59 (0.78) 0.56 (0.74) 0.49 (0.65) 0.45 (0.60) 0.41 (0.55) 0.35 (0.47) 1.10 (1.47) 1.08 (1.44) 0.97 (1.29) 0.89 (1.18) 0.85 (1.14) 0.74 (0.99) 0.69 (0.92) 0.62 (0.82) 0.56 (0.74) 0.52 (0.69) 0.45 (0.60) 1.38 (1.73) 1.28 (1.60) 1.21 (1.52) 1.19 (1.49) 0.97 (1.21) 0.96 (1.20) 0.83 (1.04) 0.74 (0.93) 0.65 (0.82) 0.55 (0.69) 0.47 (0.59) (1) Inductance is measured with a LCR meter 4284A * or equivalent. (2) DC resistance is measured with a Digital Multimeter TR6871 (Advantest) or equivalent. (3) Maximum allowable DC current is that which causes a 30% inductance reduction from the initial value, or coil temperature to rise by 40C, whichever is smaller. (Reference ambient temperature 20C) * Agilent Technologies * Agilent Technologies |
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