DFE252012C
Inductance Range: 0.47~10H
(Unit: mm) (Unit: mm)
FEATURES 特点
Miniature size: 2520 footprint (2.5mm×2.0mm) and low
profile(1.2mm Max. height)
The use of magnetic iron powder ensure capability fo
r
large current.
The use of Flat wire for Low DC resistance.
Magnetically shielded, low audible core noise.
Reflow solderable.
Operating temperature : -40～+85°C
Halogen Free, RoHS compliant.
小型薄型构造(2.5ｘ2.0ｍｍ、高度1.2mm Max.)
使用合金系磁性粉，保证了大电流
采用平角线、低直流电阻
闭磁路构造、低芯片噪音
适合回流焊接
工作温度范围：-40～+85°C
符合RoHS指令、无卤素
TOKO STANDARD PART NUMBERS 东光标准零件号码
TYPE DFE252012C (Quantity/reel; 3,000 PCS)
东光零件号码 电感值 公差 测试频率 最大直流电阻 最大允许直流电流
TOKO Part
Number Inductanc e
L(H) Toleran ce
(%)
Test
Frequency
(MHz)
DC Resistance
(m)
Max. (Typ .)
Rated DC Current
(A) Max. (Ty p . )
ΔL/L=30% ΔT=40C
1239AS-H-R47M 0.47 20 139 (29) 3.8 (4.7) 3.7 (4.4)
1239AS-H-1R0M 1.0 20 159 (45) 3.0 (3.8) 3.0 (3.5)
1239AS-H-1R5M 1.5 20 172 (60) 2.6 (3.3) 2.4 (2.8)
1239AS-H-2R2M 2.2 20 1108 (90) 2.2 (2.7) 2.0 (2.3)
1239AS-H-3R3M 3.3 20 1144 (120) 1.8 (2.3) 1.5 (1.7)
1239AS-H-4R7M 4.7 20 1240 (200) 1.5 (1.9) 1.3 (1.5)
1239AS-H-6R0M 6.0 20 1275 (240) 1.4 (1.7) 1.1 (1.3)
1239AS-H-6R8M 6.8 20 1375 (310) 1.3 (1.6) 1.0 (1.2)
1239AS-H-6R8M 6.8 20 1375 (310) 1.3 (1.6) 1.0 (1.2)
1239AS-H-100M 10 20 1460 (400) 1.0 (1.3) 0.85 (1.0)
(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 40C whichever is smaller.
(Reference ambient temperature 20°C)
(1)LCR仪表4284A (Agilent Technologies)或者功能相同的仪器在
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：从开始值降低
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）。
Recommended patterns
推荐焊盘尺寸
Met al Alloy Inductors
金属合金功率电感器
