Metal Alloy Inductors (R) FCUL1040 Low core loss type Recommended patterns Inductance Range: 0.18~0.42H (Unit: mm) Tolerance0.3 (Unit: mm) FEATURES 11.5 10.0mm square and 4.0mm Max. height. Magnetically shielded construction, low DC resistance. Suitable for large current The use of low loss iron powder ensure capability for high efficiency. Low audible core noise. Ideal for DC-DC converter applications RoHS compliant. Halogen Free. TOKO STANDARD PART NUMBERS 11.5 10.0mm 4.0mm Max. DC-DC RoHS, TYPE FCUL1040 (Quantity/reel; 500 PCS) (1) TOKO Part Number Inductance (H) FCUL1040-H-R18M FCUL1040-H-R36M FCUL1040-H-R42M (1) 0.18 0.36 0.42 (2) (3) Tolerance (%) DC (2) Resistance (m) Tolerance 7% Inductance (3) Decrease Current (A) Max. (Typ.) L L =30% 20 20 20 0.54 0.82 1.02 53 (70) 36 (48) 34 (45) (4) Temperature (4) Rise Current T=40C (A) Max. (Typ.) 38 (45) 31 (36) 30 (35) Dimension (mm) A 3.9 3.9 3.5 (1) Inductance is measured with a LCR meter 4284A (Agilent Technologies) or equivalent. Test frequency at 100kHz (2) DC resistance is measured with 34420A (Agilent Technologies) or 3541(HIOKI). (Reference ambient temperature 25C) (3) Inductance Decrease Current based upon 30% inductance reduction from the initial value (4) Temperature Rise Current based upon 40C temperature rise. (Reference ambient temperature 25C) (5) Absolute maximum voltage 30VDC. (1) LCR 4284AAgilent Technologies 100kHz (2) 34420AAgilent Technologies 3541(HIOKI)25C (3) 30% (4) 40C 25C (5) 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.