1277AS-H-4R7M=P2

Metal Alloy Inductors 金属合金功率电感器 DFE322512C Recommended patterns Inductance Range: 0.47~10µH 推荐焊盘尺寸 (Unit: mm) (Unit: mm) FEATURES 特点 • Miniature size: 3225 footprint (3.2mm×2.5mm) 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(3.2ｘ2.5ｍｍ、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 DFE322512C (Quantity/reel; 3,000 PCS) 零件号码 电感值(1) 公差 测试频率 Part Number Inductance(1) L(µH) Tolerance (%) Test Frequency (MHz) 1277AS-H-R47M=P2 1277AS-H-R68M=P2 1277AS-H-1R0M=P2 1277AS-H-1R5M=P2 1277AS-H-2R2M=P2 1277AS-H-3R3M=P2 1277AS-H-4R7M=P2 1277AS-H-6R8M=P2 1277AS-H-100M=P2 0.47 0.68 1.0 1.5 2.2 3.3 4.7 6.8 10 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 1 1 1 1 1 1 1 1 1 (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) 最大直流电阻(2) (2) DC Resistance (mΩ) Max. (Typ.) 31 (21) 35 (27) 45 (34) 65 (50) 84 (70) 126 (105) 180 (150) 276 (230) 420 (350) 最大电感值减小电流(3) Inductance Decrease Current(3) (A) Max. (Typ.) ΔL/L=30% 4.7 (5.9) 4.2 (5.3) 3.7 (4.6) 3.0 (3.7) 2.6 (3.2) 2.1 (2.6) 1.8 (2.2) 1.5 (1.9) 1.2 (1.5) 最大温度上升电流(3) Temperature Rise Current(3) ∆T=40°C (A) Max. (Typ.) 3.7 (4.4) 3.5 (4.1) 3.1 (3.7) 2.6 (3.0) 2.1 (2.5) 1.8 (2.1) 1.4 (1.7) 1.2 (1.5) 0.9 (1.1) (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）。