Metal Alloy Inductors
金属合金功率电感器
DFE252012P
Inductance Range:
0.33~4.7µH
Recommended patterns
推荐焊盘尺寸
(Unit: mm)
(Unit: mm)
FEATURES
特点
•
•
小型薄型构造(2.5½2.0½½、高度1.2mm
Max.)
½用合金系磁性粉，保证了大电流
•
Miniature size: 2520 footprint (2.5mm×2.0mm) and low
profile(1.2mm Max. height)
•
The use of magnetic iron powder ensure capability for
large current.
•
The use of Flat wire for Low DC resistance.
•
Magnetically shielded, low audible core noise.
•
Reflow solderable.
•
Operating temperature : -40½+125°C
•
采用平角线、½直流电阻
•
闭磁路构造、½芯片噪音
•
适合回流焊接
•
½用温度范围：-40½+125°C
STANDARD PART NUMBERS
标准零件号码
TYPE DFE252012P (Quantity/reel; 3,000 PCS)
零件号码
Part
Number
DFE252012P-R33M=P2
DFE252012P-R47M=P2
DFE252012P-R68M=P2
DFE252012P-1R0M=P2
DFE252012P-1R5M=P2
DFE252012P-2R2M=P2
DFE252012P-3R3M=P2
DFE252012P-4R7M=P2
电感值
(1)
Inductance
(1)
L(µH)
0.33
0.47
0.68
1.0
1.5
2.2
3.3
4.7
公差
Tolerance
(%)
±20
±20
±20
±20
±20
±20
±20
±20
测试频率
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
最大直流电阻
(2)
DC Resistance
(2)
(mΩ)
Max. (Typ.)
23 (17)
27 (21)
37 (30)
42 (35)
60 (50)
84 (70)
140 (115)
200 (165)
最大电感值减小电流
(3)
Inductance
Decrease Current
(3)
(A) Max. (Typ.)
ΔL/L=30%
6.6 (7.3)
5.7 (6.4)
4.8 (5.3)
4.3 (4.8)
3.5 (3.9)
3.0 (3.4)
2.3 (2.6)
2.0 (2.2)
最大温度上升电流
(3)
Temperature
Rise Current
(3)
∆T=40°C
(A) Max. (Typ.)
4.6 (5.4)
4.0 (4.7)
3.5 (4.1)
3.2 (3.8)
2.6 (3.0)
2.2 (2.6)
1.7 (2.0)
1.4 (1.7)
(1) Inductance is measured with a LCR meter 4284A
(Agilent
Technologies) or equivalent. Test frequency at 1MHz
(2) DC resistance is measured with 34420A (Agilent Technologies) or
3541(HIOKI). (Reference ambient temperature 20°C)
(3) Maximum allowable DC current is that which causes a 30%
inductance reduction from the initial value, coil temperature to rise
by 40°C whichever is smaller.
(Reference ambient temperature 20°C)
(1)LCR仪表4284A
(Agilent
Technologies)或者功½相同的仪器在
1MHz下测试电感值。
(2)通过数码万用表34420A (Agilent Technologies)/ 3541(HIOKI)或者
相类似的工具测试直流电阻。（环境温度为20°C）
(3)允许最大直流电的范围是以下两者中比较小的一个：从开始值降½
30%的电感值，或者线圈温度升高40°C。
（参考周围环境温度20°C）。
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