1227AS-H-1R5N=P2

Ferrite Inductors 铁氧体功率电感器 DEM2818C Inductance Range: 0.47~12µH Recommended patterns 推荐焊盘尺寸 (Unit: mm) (Unit: mm) Note (*) 1.8mm Max. height FEATURES 特点 • Low profile (2.8 × 3.0mm square, 1.8mm 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1.8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 DEM2818C (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.) 1227AS-H-R47N=P2 1227AS-H-1R0N=P2 1227AS-H-1R5N=P2 1227AS-H-2R2M=P2 1227AS-H-3R3M=P2 1227AS-H-4R7M=P2 1227AS-H-6R8M=P2 1227AS-H-100M=P2 1227AS-H-120M=P2 0.47 1.0 1.5 2.2 3.3 4.7 6.8 10 12 ± 30 ± 30 ± 30 ± 20 ± 20 ± 20 ± 20 ± 20 ± 20 20 (17) 29 (24) 32 (27) 47 (39) 67 (56) 92 (77) 146 (122) 204 (170) 258 (215) (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) 3.3 (4.4) 2.3 (3.1) 2.0 (2.6) 1.7 (2.2) 1.3 (1.7) 1.1 (1.4) 0.90 (1.2) 0.75 (1.0) 0.65 (0.87) 4.7 (5.5) 3.7 (4.3) 3.4 (4.0) 2.6 (3.1) 2.0 (2.4) 1.8 (2.1) 1.3 (1.5) 1.2 (1.4) 1.0 (1.2) 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）。