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cjiang FNR4020S150MT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4020S150MT
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4020S150MT
- Electronic Component
- 1
- Package
- SMD,4x4mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.245g
- Inductor
- 15uH
- Electronic Component
- 1
- Electronic Component
- BM0233322769
- Current
- 1.1A
- Resistor(DCR)
- 299mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR4020S150MT 产品概述
一、产品简介
FNR4020S150MT 是长江微电（cjiang）推出的一款磁胶屏蔽功率电感，封装为 SMD（4×4 mm），面向中低电流 开关电源与滤波应用。器件标称电感值为 15 μH，公差 ±20%，适合对体积与 EMI 有一定要求的便携或嵌入式电源设计。
二、主要参数
- 品牌：cjiang（长江微电）
- 型号：FNR4020S150MT
- 电感值：15 μH ±20%
- 额定电流（Ic）：1.1 A（持续）
- 饱和电流（Isat）：1.5 A（典型，短时峰值）
- 直流电阻（DCR）：299 mΩ
- 封装：SMD，尺寸约 4 × 4 mm
- 类型：磁胶屏蔽电感（屏蔽结构降低辐射与耦合）
三、性能与特性
- 磁胶屏蔽结构：有利于抑制磁通泄漏，减小对周围元件的电磁干扰（EMI），便于在密集 PCB 布局中使用。
- 高电感值（15 μH）：适合用于输入/输出滤波、能量储存或需要较大电感量的降压/升压拓扑。
- DCR 与损耗说明：器件 DCR 为 0.299 Ω，在额定电流 1.1 A 下的铜损约为 P = I^2·DCR ≈ 0.36 W；若遇到短时峰值 1.5 A，功耗可达 ≈0.67 W。设计时需考虑该功耗对温升与可靠性的影响。
四、典型应用场景
- DC-DC 降压/升压转换器的能量存储与滤波元件
- 电池供电系统的输入滤波与噪声抑制
- 工业控制与通信设备中对 EMI 有要求的电源模块
- LED 驱动与传感器供电回路
五、选型与使用建议
- 工作电流与热预算：建议持续工作电流不超过额定 1.1 A，并为器件留出充分散热路径；若系统存在较大持续电流或长期高温环境，应选用 DCR 更低或额定电流更高的型号。
- 峰值电流处理：Isat 为 1.5 A，适用于短时峰值，但长期接近 Isat 会导致电感饱和，电感量显著下降，应避免长期在该水平工作。
- 滤波效果考虑：由于公差 ±20%，在对电感精度敏感的滤波或振荡回路中需做好容差配合或采用配套电路补偿。
- PCB 布局：靠近开关器件放置，输入/输出电容与电感形成环路尽量短小；利用铜皮散热并避免大电流回路穿过敏感信号区。
六、安装与可靠性建议
- 按常规 SMT 回流焊工艺安装，推荐遵循厂商或行业标准的回流曲线与焊盘设计；避免在多次回流或高温下超出元件耐受范围。
- 在高温、高湿或震动环境中使用时，应配合适当的封装与固定工艺，并在设计中留有温升裕量以保证长期可靠性。
总结：FNR4020S150MT 以 4×4 mm 紧凑封装提供 15 μH 的较大电感量，适合中低电流的电源滤波与储能场景。设计时需关注 DCR 导致的功耗与温升、工作电流的退让以及电感公差对电路性能的影响，从而确保稳定可靠的系统表现。
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