Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
cjiang FNRH252012S-2R2MT FNRH252012S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNRH252012S-2R2MT
- Type
- CJIANG
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNRH252012S-2R2MT
- Electronic Component
- 1
- Package
- SMD
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.055g
- Inductor
- 2.2uH
- Electronic Component
- 1
- Electronic Component
- BM0264590577
- Current
- 1.9A
- Resistor(DCR)
- 108mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
- and Current(Isat)
- 1.9A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNRH252012S-2R2MT 产品概述
一、产品简介
FNRH252012S-2R2MT 是长江微电（cjiang）出品的一款表贴功率电感，额定电流 1.9A，标称电感值 2.2µH（±20%）。该器件采用 1008 封装，适合空间受限的移动电源、消费类与工业类开关电源应用，兼顾较高电流承载能力与小体积布局需求。
二、主要参数
- 电感值：2.2µH ±20%
- 额定电流（Ir）：1.9A
- 饱和电流（Isat）：1.9A（规格点）
- 直流电阻（DCR）：108mΩ
- 封装形式：SMD，1008 封装
- 品牌：cjiang（长江微电）
三、性能特点
- 高电流承载：1.9A 的额定与饱和电流，使其可在中低功率点位稳定工作，满足同步整流与降压输出滤波需求。
- 低频损耗可控：DCR 108mΩ 在设计时需考虑 I²R 损耗，但对于 1–2A 级应用仍属可接受范围。
- 体积小巧：1008 SMD 封装便于自动贴装与高密度 PCB 布局，适用于体积受限的终端产品。
四、典型应用场景
- DC-DC 降压（Buck）转换器的输出滤波或能量储存元件
- 电源管理模块、移动电源、车载电子、便携设备电源部分
- EMI 抑制与电流耦合滤波电路
五、选型与使用注意事项
- 留有裕量：推荐在实际工作电流低于额定电流 70–80% 的条件下长期使用，以避免常态下接近饱和带来的电感衰减与发热。
- 考虑直流偏置：电感值在直流偏置下会下降，设计时应按工作电流下的有效电感评估电路性能。
- 损耗与温升：DCR 导致的铜损为 I²·DCR，连续大电流工作时要关注器件及周围元件的散热条件。
- EMC 布局：器件应靠近开关节点布置，走短宽的电流回路，增设过孔改善散热与回流。
六、封装与焊接建议
- 推荐采用标准回流焊工艺，遵循厂商回流曲线，避免超温导致性能退化。
- PCB 布局时为减小热阻和电阻，焊盘尽量加大并使用多过孔连通底层铜箔以利散热。
总结：FNRH252012S-2R2MT 是一款适合中低功率、对体积有要求的开关电源和滤波场景的功率电感。设计时需综合考虑电流裕量、直流偏置与散热以确保长期可靠工作。若需更详细的 S 参数、回流曲线或温度特性，请联系供应商获取完整规格书。
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