DB320C Datasheet, PDF (1/1 Pages) TOKO, Inc – Fixed Inductors for Surface Mounting

Fixed Inductors for Surface Mounting
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DB320C
Inductance Range: 3.9~27µH
DIMENSIONSʗੇܗ֎๏ਤ
4.0 Max.
2.0 Max.
Recommended patterns
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1.0
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Direction indication
(Unit: mm)
2.2
5.1
(Unit: mm)
FEATURESʗಛ௕
• Low profile (4.0mm Max. square and 2.0mm Max. height).
• Magnetically shielded construction and low DC resistance.
• Ideal for DC-DC converter choke coil for portable
equipments (DVD, DSC, Cellular phone, PDA ).
• RoHS compliant.
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SELECTION GUIDE FOR STANDARD COILS
TYPE DB320C (Quantity/reel; 2,000 PCS)
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TOKO
Part
Number
Inductance ⁽¹⁾
(µH)
Tolerance
(%)
A993AS-3R9M
3.9
±20
A993AS-4R7M
4.7
±20
A993AS-5R6M
5.6
±20
A993AS-6R8M
6.8
±20
A993AS-8R2M
8.2
±20
A993AS-100M
10.0
±20
A993AS-120M
12.0
±20
A993AS-150M
15.0
±20
A993AS-180M
18.0
±20
A993AS-220M
22.0
±20
A993AS-270M
27.0
±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.)
0.08 (0.07)
0.10 (0.08)
0.11 (0.09)
0.12 (0.10)
0.14 (0.12)
0.86 (1.15)
0.85 (1.14)
0.73 (0.97)
0.70 (0.93)
0.66 (0.88)
1.10 (1.47)
1.08 (1.44)
0.97 (1.29)
0.89 (1.18)
0.85 (1.14)
1.38 (1.73)
1.28 (1.60)
1.21 (1.52)
1.19 (1.49)
0.97 (1.21)
0.16 (0.13)
0.19 (0.16)
0.24 (0.20)
0.29 (0.24)
0.37 (0.31)
0.59 (0.78)
0.56 (0.74)
0.49 (0.65)
0.45 (0.60)
0.41 (0.55)
0.74 (0.99)
0.69 (0.92)
0.62 (0.82)
0.56 (0.74)
0.52 (0.69)
0.96 (1.20)
0.83 (1.04)
0.74 (0.93)
0.65 (0.82)
0.55 (0.69)
0.48 (0.40)
0.35 (0.47)
0.45 (0.60)
0.47 (0.59)
(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