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Fixed Inductors for Surface Mounting
D78C
Inductance Range: 1.5~330H
DIMENSIONS
7.6Max. 2.0 8.1Max. 6.0 3.3
Recommended patterns
6.8
2.4 5.1 5.4
4.4 8.4
(Unit: mm)
FEATURES
* * * * * 7.6mm Max. square, and 8.1mm Max. height. Magnetically shielded construction. Suitable for large current. Ideal for a variety of DC-DC converter inductor applications. RoHS compliant. * * * * *
(Unit: mm)
SELECTION GUIDE FOR STANDARD COILS
TYPE D78C (Quantity/reel; 500 PCS)
TOKO Part Number #648CY-1R5M #648CY-2R2M #648CY-3R3M #648CY-4R7M #648CY-6R8M #648CY-100M #648CY-120M #648CY-150M #648CY-180M #648CY-220M #648CY-270M #648CY-330M #648CY-390M #648CY-470M #648CY-560M #648CY-680M #648CY-820M #648CY-101M #648CY-121M #648CY-151M #648CY-181M #648CY-221M #648CY-271M #648CY-331M Inductance (1) L (H) 1.5 2.2 3.3 4.7 6.8 10.0 12.0 15.0 18.0 22.0 27.0 33.0 39.0 47.0 56.0 68.0 82.0 100.0 120.0 150.0 180.0 220.0 270.0 330.0 Tolerance (%) 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 DC Resistance (2) () Max. 0.023 0.026 0.031 0.037 0.044 0.053 0.056 0.065 0.071 0.079 0.082 0.099 0.134 0.150 0.201 0.300 0.320 0.350 0.581 0.646 0.725 0.811 1.148 1.273 Rated DC Current (3) (A) Max. 4.00 3.60 3.10 2.50 2.10 1.75 1.70 1.45 1.32 1.20 1.08 1.00 0.90 0.86 0.83 0.80 0.70 0.60 0.53 0.48 0.45 0.40 0.36 0.32
(1) Inductance is measured with a LCR meter 4284A (Agilent Technologies) or equivalent. 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 10% inductance reduction from the initial value, or coil temperature to rise by 40C, whichever is smaller. (Reference ambient temperature 20C)
3.0

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