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| Fixed Inductors for Surface Mounting FDA1254 Inductance Range: 0.68~8.0H DIMENSIONS Recommended patterns 3.0 NC 2.4 5.0 2.5 12.6 C1.5 NC 5.4 Max. 1.5 2.5 (10.2) A B 1.8 C 1.8 Tolerance : 0.3 (Unit: mm) Type FDA1254-R68M FDA1254-1R0M FDA1254-1R2M FDA1254-2R2M FDA1254-3R3M FDA1254-4R7M FDA1254-8R0M A 13.5 13.5 13.5 13.2 12.9 12.9 12.9 B 1.8 1.8 1.8 1.5 1.2 1.2 1.2 C 7.7 7.7 7.7 7.6 7.6 7.6 7.6 2.5 (Unit: mm) FEATURES 13.5x12.6mm square and 5.4mm Max. height. Magnetically shielded construction low DC resistance. Suitable for large current. The use of magnetic metal alloy powder ensure capability for large current and compact size. * Low audible core noise. * Ideal for DC-DC converter applications in hand held personal computer and etc. * RoHS compliant * * * * * * * * * * * SELECTION GUIDE FOR STANDARD COILS TYPE FDA1254 (Quantity/reel; 500 PCS) TOKO Part Number FDA1254-R68M FDA1254-1R0M FDA1254-1R2M FDA1254-2R2M FDA1254-3R3M FDA1254-4R7M FDA1254-8R0M Inductance (1) (H) 0.68 1.0 1.2 2.2 3.3 4.7 8.0 Tolerance (%) 20 20 20 20 20 20 20 Inductance DC Decrease Current(3) Resistance (2) (A) Max. (Typ.) L (m) Max. (Typ.) L =20% 1.5 (1.24) 2.0 (1.63) 2.6 (2.05) 4.5 (3.61) 7.0 (5.51) 8.8 (7.12) 16.0 (12.8) 29.1 (38.8) 25.2 (33.7) 20.2 (26.9) 14.7 (19.6) 13.1 (17.5) 11.2 (14.9) 9.1 (12.3) Temperature Rise Current(4) T=40C (A) Max. (Typ.) 23.7 (29.7) 20.5 (25.7) 18.4 (23.1) 14.2 (17.8) 11.5 (14.4) 10.2 (12.8) 7.1 (8.9) (1) Inductance is measured with a LCR meter 4284A (Agilent Technologies) or equivalent. (2) DC resistance is measured with 34420A (Agilent Technologies) or 3541(HIOKI). (environment temp. of 25C) (3) Inductance Decrease Current based upon 20% inductance reduction from the initial value. (4) Temperature Rise Current based upon 40C temperature rise. (Reference ambient temperature 25C) (5) Absolute maximum voltage 30VDC. NOTICE: Please be sure that you carefully discuss your planned purchase with our sales division if you intend to use the product for business use etc. is severe. 2.9 9.7 |
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