1225AS-H-6R8M=P2

Ferrite Inductors 铁氧体功率电感器 DEM2812C Inductance Range: 0.47~12µH Recommended patterns 推荐焊盘尺寸 (Unit: mm) (Unit: mm) Note (*) 1.2mm Max. height FEATURES 特点 • Low profile (2.8 × 3.0mm square, 1.2mm Max.height). • Magnetically shielded construction and low DC resistance. • Ideal for a variety of DC-DC converter inductor applications. • Operating temperature (− 40～+85°C) • 薄型构造（最大2.8×3.0毫米的平面，最大高度 1.2毫米） • 磁性屏蔽结构和低直流电阻 • 是适用于多种DC-DC转换器电感器的理想选择 • 使用温度范围：－40 ～ ＋85°C STANDARD PART NUMBERS 标准零件号码 TYPE DEM2812C (Magnetically Shielded, Quantity/reel; 2,000 PCS) 零件号码 电感值(1) 公差 最大直流电阻(2)(典型) Part Number Inductance(1) (µH) Tolerance (%) DC Resistance(2) (mΩ) Max. (Typ.) 1225AS-H-R47N=P2 1225AS-H-R68N=P2 1225AS-H-1R0N=P2 1225AS-H-1R5N=P2 1225AS-H-2R2M=P2 1225AS-H-3R3M=P2 1225AS-H-4R7M=P2 1225AS-H-6R8M=P2 1225AS-H-100M=P2 1225AS-H-120M=P2 0.47 0.68 1.0 1.5 2.2 3.3 4.7 6.8 10 12 ± 30 ± 30 ± 30 ± 30 ± 20 ± 20 ± 20 ± 20 ± 20 ± 20 31 (26) 37 (31) 43 (36) 52 (43) 70 (58) 96 (80) 126 (105) 204 (170) 300 (250) 350 (290) (1) Inductance is measured with a LCR meter 4284A (Agilent Technologies) or equivalent. Test frequency at 100kHz (2) DC resistance is measured with 34420A (Agilent Technologies) or 3541(HIOKI). (Reference ambient temperature 25°C) (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) 最大电感减小电流(3)(典型) Inductance Decrease Current(3) (A) Max. (Typ.) ∆L L =30% 最大温度上升电流(3)(典型) 2.5 (3.4) 2.0 (2.7) 1.8 (2.4) 1.5 (2.1) 1.2 (1.6) 1.0 (1.4) 0.88 (1.2) 0.72 (0.96) 0.58 (0.77) 0.55 (0.73) 3.1 (3.7) 2.9 (3.4) 2.7 (3.2) 2.4 (2.8) 2.0 (2.4) 1.5 (1.8) 1.4 (1.6) 1.1 (1.3) 0.85 (1.0) 0.76 (0.95) Temperature Rise Current(3) ∆T=40°C (A) Max. (Typ.) (1) LCR仪表4284A (Agilent技术)或者功能相同的仪器在100kHz下测 试电感值。 (2) 通过数码万用表34420A（Agilent技术）或者3541(HIOKI)测试直 流电阻。（环境温度为25°C） (3) 允许最大直流电的范围是以下两者中比较小的一个：引起电感值 从最初值降低30%，或者线圈温度升高40°C。 （参考周围环境温度20°C）。