1239AS-H-3R3M=P2

Metal Alloy Inductors 金属合金功率电感器 DFE252012C Recommended patterns Inductance Range: 0.47~10µH 推荐焊盘尺寸 (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 for large current. • The use of Flat wire for Low DC resistance. • Magnetically shielded, low audible core noise. • Reflow solderable. • Operating temperature : -40～+85°C • 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 • 使用温度范围：-40～+85°C STANDARD PART NUMBERS 标准零件号码 TYPE DFE252012C (Quantity/reel; 3,000 PCS) 零件号码 电感值(1) Part Number Inductance(1) L(µH) 1239AS-H-R47M=P2 1239AS-H-1R0M=P2 1239AS-H-1R5M=P2 1239AS-H-2R2M=P2 1239AS-H-3R3M=P2 1239AS-H-4R7M=P2 1239AS-H-6R0M=P2 1239AS-H-6R8M=P2 1239AS-H-100M=P2 0.47 1.0 1.5 2.2 3.3 4.7 6.0 6.8 10 公差 Tolerance (%) ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 测试频率 最大直流电阻(2) (2) Test Frequency (MHz) DC Resistance (mΩ) Max. (Typ.) 1 1 1 1 1 1 1 1 1 39 (29) 59 (45) 72 (60) 108 (90) 144 (120) 240 (200) 275 (240) 375 (310) 460 (400) (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) 最大电感值减小电流(3) Inductance Decrease Current(3) (A) Max. (Typ.) ΔL/L=30% 3.8 (4.7) 3.0 (3.8) 2.6 (3.3) 2.2 (2.7) 1.8 (2.3) 1.5 (1.9) 1.4 (1.7) 1.3 (1.6) 1.0 (1.3) 最大温度上升电流(3) Temperature Rise Current(3) ∆T=40°C (A) Max. (Typ.) 3.7 (4.4) 3.0 (3.5) 2.4 (2.8) 2.0 (2.3) 1.5 (1.7) 1.3 (1.5) 1.1 (1.3) 1.0 (1.2) 0.85 (1.0) (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）。