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cjiang FNR252012S1R0NT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR252012S1R0NT
- Type
- CJIANG
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR252012S1R0NT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±30%
- Electronic Component
- 0.046g
- Inductor
- 1uH
- Electronic Component
- 1
- Electronic Component
- BM0264590565
- Current
- 2.1A
- Resistor(DCR)
- 90mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR252012S1R0NT 产品概述
一、产品简介
FNR252012S1R0NT 是 cjiang（长江微电）推出的一款片式磁胶屏蔽功率电感，标称电感值 1.0 µH，公差 ±30%。该器件采用 SMD 1008 封装（常见片式尺寸），面向中小功率 DC-DC 变换器和电源滤波应用，兼顾体积与通流能力，适用于对空间和 EMI 有一定要求的场合。
二、主要参数与电气特性
- 电感值：1.0 µH ±30%
- 额定电流（Irated）：2.1 A（长期允许通过电流，需考虑温升）
- 饱和电流（Isat）：2.9 A（电感下降至初始值一定比例时定义）
- 直流电阻（DCR）：约 90 mΩ（典型值）
- 类型：磁胶封装、屏蔽结构
- 封装形式：SMD（1008）
三、性能特点
- 抗饱和能力较强：Isat 2.9 A，适合有瞬态大电流冲击的开关电源场合。
- 低频损耗可控：90 mΩ 的 DCR 在中小电流下损耗合理，有利于降低导通损耗。
- 屏蔽结构：磁胶封闭与屏蔽设计减少外部磁场干扰，便于密集布板与 EMC 控制。
- 片式封装：适合自动贴装和回流焊工艺，便于批量生产与装配。
四、典型应用场景
- 升降压（Buck/Boost）和降压（Buck）DC-DC 转换器的主电感或输出滤波。
- 移动电源、便携设备、物联网终端的电源管理。
- 工业控制与通信设备中点对点电源模块的滤波与储能元件。
- 在对 EMI 有要求且通流不到几安的中小功率场合替代传统绕线电感。
五、选型与使用建议
- 电流余量：建议额定电流 Irated 留有 20% 以上余量，若工作电流连续接近额定值，应评估温升与寿命。
- 饱和裕度：若电路存在大脉冲电流或短时峰值，应以 Isat 为界，保证峰值不超过 Isat，避免电感值突降影响稳定性。
- 损耗评估：根据工作电流平方乘以 DCR 计算铜损，并结合开关损耗评估总体效率。
- 工作频率：在开关电源常见工作频率范围内（几百 kHz 范围）表现良好，具体纹波电流与频率下的差异需参考厂方曲线。
- 布局建议：电感靠近开关管或输出端放置，保证回流环路最短，输入／输出电容靠近电感两端。
六、封装、可靠性与注意事项
- 适用于标准回流焊工艺，但需按厂家推荐的温度曲线进行焊接，避免过高回流温度影响磁胶或粘接材料。
- 屏蔽结构降低磁干扰，但仍建议在高精度模拟电路附近作适当间隔或屏蔽处理。
- 储存与焊接环境避免潮湿，高湿可能影响封装质量，应遵循物料防潮等级和回流前的烘烤要求。
- 在关键应用建议索取并参考厂方详细数据手册（电感随偏磁通、温度系数、饱和特性曲线及频率特性），并做实际电路测试验证。
FNR252012S1R0NT 以其尺寸优势、适度的通流能力与屏蔽特性，适合中小功率开关电源和电源滤波场合，是注重体积与 EMC 控制的优选电感元件。
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