首页>SD25-471-R>规格书详情
SD25-471-R电感器线圈扼流圈的固定电感器规格书PDF中文资料
SD25-471-R规格书详情
Introduction/Basic Operation
In switching regulator applications the inductor is used as an energy storage device. When the semiconductor switch is on the current in the inductor ramps up and energy is stored. When the switch turns off energy is released into the load. The amount of energy stored is calculated by the formula Energy = ½L.I² (Joules), where:
• L is the inductance in Henrys
• I is the peak value of inductor current
The amount by which the current changes during a switching cycle is known as the ripple current. Ripple current is defined as Vl = L.di/dt:
• Vl is the voltage across the inductor
• di is the ripple current
• dt is the duration for which the voltage is applied
The following parameters need to be defined or calculated to select an inductor:
• Maximum input voltage
• Output voltage
• Switching frequency
• Maximum ripple current
• Duty cycle
产品属性
- 产品编号：
SD25-471-R
- 制造商：
Eaton - Electronics Division
- 类别：
电感器，线圈，扼流圈 > 固定电感器
- 系列：
SD
- 包装：
卷带（TR）
- 类型：
鼓芯，绕线式
- 材料 - 磁芯：
铁氧体
- 容差：
±20%
- 电流 - 饱和 （Isat）：
184mA
- 屏蔽：
屏蔽
- DC 电阻 (DCR)：
3.1 欧姆
- 工作温度：
-40°C ~ 85°C
- 安装类型：
表面贴装型
- 封装/外壳：
非标准
- 大小 / 尺寸：
0.205" 长 x 0.205" 宽（5.20mm x 5.20mm）
- 高度 - 安装（最大值）：
0.098"（2.50mm）
- 描述：
FIXED IND 470UH 293MA 3.1OHM SMD
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
COOPER |
24+ |
SMD |
62300 |
一级代理/全新现货/长期供应! |
询价 | ||
COOPER |
22+ |
SMD |
35981 |
原装正品现货 |
询价 | ||
SD25-4R7-R |
4311 |
4311 |
询价 | ||||
Eaton |
23+ |
TO-18 |
12800 |
原装正品代理商最优惠价格,现货或订货 |
询价 | ||
CooperInstruments&System |
21+ |
SMD |
12588 |
原装正品,大量库存 |
询价 | ||
COOPER |
2022+ |
SMD |
20000 |
只做原装进口现货.假一罚十 |
询价 | ||
COOPER |
2447 |
SMD |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
COOPER |
15+Rohs |
SMD |
72800 |
原装新货/价格漂亮/长期大量供应 |
询价 | ||
COOPER |
20+ |
电感器 |
682000 |
电感原装优势主营型号-可开原型号增税票 |
询价 | ||
COOPER |
24+ |
SOP |
6868 |
原装现货,可开13%税票 |
询价 |
