Fixed Inductors
Fixed Inductors for Surface Mounting
FDH1040/FDH1040B
Inductance Range: 0.36~0.56µH
DIMENSIONS
FDH1040
11.2 4.0 Max. 2...
Description
Fixed Inductors for Surface Mounting
FDH1040/FDH1040B
Inductance Range: 0.36~0.56µH
DIMENSIONS
FDH1040
11.2 4.0 Max. 2.55 (6.0) 2.55
FDH1040B
11.3 4.0 Max. 2.35 (6.6) 2.35
10.2
10.2
7.5
4.0
Tolerance : ±0.3 (Unit: mm)
Recommended patterns
FDH1040 FDH1040B
8.1
4.1
5.4
4.1 (Unit: mm)
3.8
6.0
3.8 (Unit: mm)
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FEATURES
11.3×10.2mm square and 4.0mm 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.
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SELECTION GUIDE FOR STANDARD COILS
TYPE FDH1040(B) (Quantity/reel; 500 PCS)
TOKO Part Number FDH1040(B)-R36M FDH1040(B)-R56M Inductance (1) (µH) 0.36 0.56 Tolerance (%) ±20 ±20 Inductance DC Decrease Current(3) Resistance (2) (A) Max. (Typ.) ∆L (mΩ) Max. (Typ.) =20%
L
4.6
Type
Temperature Rise Current(4) ∆ T=40°C (A) Max. (Typ.) 24 (29.7) 20 (25.4)
FDH1040(B)
1.4 (1.22) 1.9 (1.66)
28 (38.4) 22 (30.2)
(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). (environment temp. of 25°C) (3) Inductance Decrease Current based upon 20% inductance reduction from the initial value (4) Temperature Rise Current based upon 40°C temperature...
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