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cjiang FNR4012S470MT
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4012S470MT
- Type
- CJIANG
- Minimum package
- 4500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4012S470MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.165g
- Inductor
- 47uH
- Electronic Component
- 1
- Electronic Component
- BM0258614553
- Current
- 500mA
- Resistor(DCR)
- 1.43Ω
- Electronic Component
- Electronic Component
- Electronic Component
- 4500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR4012S470MT 产品概述
一、产品简介
FNR4012S470MT 是长江微电（cjiang）推出的一款磁胶屏蔽功率电感，封装为SMD，外形尺寸约为4.0 × 4.0 mm（4012 型封装）。标称电感值为 47 μH，公差 ±20%，面向中低电流、需较大电感量的电源滤波与能量储存场景。
二、主要规格
- 电感值：47 μH ±20%
- 额定电流：0.5 A（500 mA）
- 饱和电流（Isat）：0.5 A（500 mA）
- 直流电阻（DCR）：约 1.43 Ω
- 类型：磁胶屏蔽电感（power inductor, shielded）
- 封装：SMD，4×4 mm 区域
三、产品特点
- 磁胶屏蔽结构，有助于降低对周边元件的磁干扰；
- 较大电感量适合对低频纹波和突发干扰的抑制；
- 体积小、适合表贴加工，便于自动贴装与回流焊工艺；
- DCR 较高，在低电流应用下电压降和功耗可控，但在接近额定电流时需注意发热。
四、典型应用
- 开关电源（辅助电源、滤波回路）
- 便携设备的电源管理模块
- EMI 滤波、去耦电路
- 需要中等电感量且空间受限的消费电子产品
五、封装与安装
推荐按制造商提供的 PCB 焊盘尺寸与回流曲线进行封装布局，保证良好焊接和散热。由于 DCR 值较高，布局时建议考虑热量集中与散热路径，必要时配合散热铜箔或加大过孔。
六、选型与注意事项
- 若工作电流长期靠近 500 mA，应关注电感的饱和行为和温升；
- 对于对功耗敏感的设计，较高的 DCR 可能带来较大 I^2R 损耗，应评估系统效率影响；
- 若对磁干扰要求更高，可优先选用屏蔽更优或 DCR 更低的替代型号；
- 采购时确认批次、温度特性及相关可靠性资料（如高温寿命、冲击振动性能）。
如需更详细的尺寸图、频率特性曲线或寿命可靠性数据，可向长江微电索取产品数据手册与样品做进一步验证。
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