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cjiang FNR6028S4R7MT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR6028S4R7MT
- Type
- CJIANG
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR6028S4R7MT
- Electronic Component
- 1
- Package
- SMD,6x6mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.525g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0257252711
- Current
- 3.4A
- Resistor(DCR)
- 39mΩ
- 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.
FNR6028S4R7MT 产品概述
一、产品简介
FNR6028S4R7MT 是长江微电（cjiang）推出的一款磁胶屏蔽功率电感，标称电感值 4.7µH，公差 ±20%。器件为 SMD 封装（6×6mm），面向开关电源与电源管理应用，设计用于中小功率点位负载的能量存储与滤波。
二、关键参数
- 电感值：4.7 µH ±20%
- 额定电流：3.4 A（连续允许电流）
- 饱和电流 Isat：3.3 A（在规定饱和定义下）
- 直流电阻 DCR：39 mΩ
- 类型：磁胶屏蔽功率电感（shielded、磁性胶合结构）
- 封装：SMD，外形约 6×6 mm
- 品牌：cjiang（长江微电）
型号：FNR6028S4R7MT
三、性能特点
- 低 DCR 提高转换效率，适合需要较高效率的降压稳压器。
- 磁胶屏蔽结构降低磁漏，利于密集布局与 EMI 控制。
- 额定电流与饱和电流接近，适用于持续电流接近数安培的场合，但对峰值有一定限制。
- 标准 SMD 尺寸便于自动贴装与回流焊工艺。
四、典型应用
- 降压型 DC-DC 转换器（同步或非同步拓扑）
- 电源滤波与输出电感（PoL）
- LED 驱动、便携设备电源管理、工业控制板的中低功率电源模块
五、选型与使用建议
- 峰值电流判断：建议器件的最大峰值不超过 Isat，否则会出现显著电感下降与效率下降，必要时选择更高 Isat 的型号或并联方案。
- 温升与散热：高平均电流工作时需关注温升，合理布局散热片或铺铜以降低 DCR 上升带来的损耗。
- 电感容差 ±20% 会影响纹波电流与输出电压精度，设计时需考虑最差情况。
- 对于高频应用，请确认频率下的有效电感值与损耗曲线，必要时向供应商索取频率特性曲线与热阻数据。
六、封装与焊接注意
- 遵循厂家推荐焊盘尺寸与回流曲线，避免过热或回流不足导致焊接不良。
- 焊接后建议进行外观与电性能抽检（DCR、L 值、耐电流测试）。
七、可靠性与检测
- 通常建议进行过载、电流冲击、温升与震动测试以验证在目标应用环境下的可靠性。
- 如需在严苛环境（高温、高湿、汽车级）使用，请与供应商确认认证与测试报告（如 AEC-Q 等级）。
八、采购与存储
- 常见为卷带式 SMD 包装，便于 SMT 生产。
- 存储环境避免潮湿、高温，按 MSL 要求进行干燥箱储存与回流前烘烤处理（如适用）。
- 采购时请核实批次一致性并索取数据手册与性能曲线，以便在设计验证阶段评估实际性能。
总结：FNR6028S4R7MT 适合 3A 级别的点位供电与中低功率开关电源场景，具有屏蔽良好、DCR 低的优点。设计时需关注电流裕量与温升管理，必要时通过样片测试确认在目标工作频率与工况下的实际表现。若需完整电气特性曲线或封装图，请联系供应商获取最新版数据手册。
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