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| Fixed Inductors for Surface Mounting DP418C / DP420C Inductance Range: 4.3~33H (DP418C), 10~47H (DP420C) DIMENSIONS Recommended patterns 4.2 Max. 45 1. 5 1 (2 4. .8) 4 1. 2. 4 5. 2 (Unit: mm) (Unit: mm) *DP418C: 1.8mm Max. height DP420C: 2.0mm Max. height FEATURES * Lowprofile (4.0mm Max. square, 1.8 and 2.0mm Max. height). * Magnetically shielded construction and low DC resistance. * Ideal for a variety of DC-DC converter inductor applications. (DVC, DSC, Cellular phone, PDA) * RoHS compliant. * * * * SELECTION GUIDE FOR STANDARD COILS TYPE DP418C (With Ferrite Shield) TOKO Part Number S1024AS-4R3M S1024AS-100M S1024AS-330M Inductance (1) (H) 4.3 10.0 33.0 Tolerance (%) 20 20 20 DC Resistance (2) (m) Max. (Typ.) 57 (47) 120 (100) 435 (360) (Quantity/reel; 2,000 PCS) Inductance Discrease Current(3) (A) Max. (Typ.) L/L=30% 1.05 (1.40) 0.70 (0.92) 0.39 (0.52) Temperature Rise Current(3) T=40C (A) Max. (Typ.) 2.00 (2.50) 1.20 (1.50) 0.62 (0.78) TYPE DP420C (With Ferrite Shield) TOKO Part Number S1023AS-100M S1023AS-150M S1023AS-470M Inductance (1) (H) 10.0 15.0 47.0 Tolerance (%) 20 20 20 DC Resistance (2) (m) Max. (Typ.) 92 (76) 150 (125) 480 (400) (Quantity/reel; 2,000 PCS) Inductance Discrease Current(3) (A) Max. (Typ.) L/L=30% 0.68 (0.91) 0.54 (0.72) 0.31 (0.41) * Temperature Rise Current(3) T=40C (A) Max. (Typ.) 1.70 (2.11) 1.20 (1.54) 0.64 (0.80) (1) Inductance is measured with a LCR meter 4284A * or equvalent. Test frequency at 100kHz (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, coil temperature to rise by 40, whichever is smaller. (Reference ambient temperature 20) * Agilent Technologies * Agilent Technologies |
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