Ferrite Inductors
铁氧体功率电感器
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.
• 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
• Operating temperature (− 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) 最大电感减小电流(3)
(
典型
)
最大温度上升电流(3)
(典型)
Inductance
Temperature
Rise Current(3)
∆T=40°C
DC
Decrease Current(3)
(A) Max. (Typ.)
Part
Number
Inductance(1)
Tolerance
(%)
Resistance(2)
(mΩ) Max. (Typ.)
(µH)
∆L
=30%
L
(A) Max. (Typ.)
1225AS-H-R47N=P2
1225AS-H-R68N=P2
1225AS-H-1R0N=P2
1225AS-H-1R5N=P2
1225AS-H-2R2M=P2
0.47
0.68
1.0
1.5
2.2
3.3
4.7
6.8
10
± 30
± 30
± 30
± 30
± 20
± 20
± 20
± 20
± 20
± 20
31 (26)
37 (31)
43 (36)
52 (43)
70 (58)
2.5 (3.4)
2.0 (2.7)
1.8 (2.4)
1.5 (2.1)
1.2 (1.6)
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)
1225AS-H-3R3M=P2
1225AS-H-4R7M=P2
1225AS-H-6R8M=P2
1225AS-H-100M=P2
1225AS-H-120M=P2
96 (80)
1.0 (1.4)
126 (105)
204 (170)
300 (250)
350 (290)
0.88 (1.2)
0.72 (0.96)
0.58 (0.77)
0.55 (0.73)
12
(1)Inductance is measured with a LCR meter 4284A (Agilent
Technologies) or equivalent.
(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。
Test frequency at 100kHz
(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)。
(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)