D31FB Datasheet, PDF (1/1 Pages) TOKO, Inc – Fixed Inductors for Cellular Phone

Fixed Inductors for Cellular Phone
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D31FB
Inductance Range: 4.7~82µH
DIMENSIONSʗੇܗ֎๏ਤ
3.5 Max.
1.7 Max.
0.4 0.8
FEATURESʗಛɹ௕
• Low profile (3.5mm Max. square, thickness : 1.7mm Max.
height).
• Features an open magnetic circuit, but its thin dimensions
result in minimum leakage flux and result in minimum
electromagnetic interference generated.
• RoHS compliant.
(Unit: mm)
Recommended patterns
ਪ঑ύλʔϯਤ
Resist Zone
3.3
0.5
1.5
3.9
(Unit: mm)
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SELECTION GUIDE FOR STANDARD COILS
TYPE D31FB (Quantity/reel; 3,000 PCS)
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TOKO
Part
Number
Inductance ⁽¹⁾
(µH)
Tolerance
(%)
984FB-4R7M
4.7
±20
984FB-6R8M
6.8
±20
984FB-8R2M
8.2
±20
984FB-100M
10.0
±20
984FB-150M
15.0
±20
984FB-220M
22.0
±20
984FB-270M
27.0
±20
984FB-330M
33.0
±20
984FB-470M
47.0
±20
984FB-560M
56.0
±20
984FB-680M
68.0
±20
984FB-820M
82.0
±20
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DC
Resistance ⁽²⁾
(Ω) Max. (Typ.)
Inductance Decrease Current⁽³⁾
(A) Max. (Typ.)
∆L
L
=10%
∆L
L
=30%
Temperature
Rise Current⁽³⁾
∆ T=40°C
(A) Max. (Typ.)
0.54 (0.45)
0.66 (0.55)
0.75 (0.63)
0.83 (0.69)
1.12 (0.94)
0.93 (1.24)
0.81 (1.08)
0.71 (0.95)
0.61 (0.81)
0.53 (0.70)
1.06 (1.42)
0.90 (1.20)
0.83 (1.11)
0.73 (0.97)
0.58 (0.78)
0.50 (0.59)
0.44 (0.52)
0.43 (0.51)
0.41 (0.48)
0.39 (0.46)
1.42 (1.19)
1.68 (1.40)
1.86 (1.55)
3.08 (2.57)
3.49 (2.91)
0.45 (0.60)
0.42 (0.56)
0.38 (0.51)
0.32 (0.42)
0.29 (0.38)
0.50 (0.67)
0.47 (0.63)
0.45 (0.61)
0.37 (0.49)
0.34 (0.45)
0.35 (0.42)
0.30 (0.35)
0.29 (0.34)
0.24 (0.29)
0.23 (0.28)
4.44 (3.70)
5.11 (4.26)
0.26 (0.35)
0.24 (0.32)
0.31 (0.41)
0.28 (0.37)
0.19 (0.23)
0.18 (0.22)
(1) Inductance is measured with a LCR meter 4284A* or equivalent.
(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, or coil temperature to rise
by 40˚C, whichever is smaller.
(Reference ambient temperature 20˚C )
∗: Agilent Technologies
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∗: Agilent Technologies