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cjiang FNR4012S6R8MT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4012S6R8MT
- Type
- CJIANG
- Minimum package
- 4500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4012S6R8MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.165g
- Inductor
- 6.8uH
- Electronic Component
- 1
- Electronic Component
- BM0264896713
- Current
- 1.2A
- Resistor(DCR)
- 257mΩ
- 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.
FNR4012S6R8MT 产品概述
一、主要参数
FNR4012S6R8MT 为 cjiang（长江微电）出品的磁胶屏蔽功率电感，主要参数如下：感值 6.8µH ±20%；额定电流 1.2A；饱和电流（Isat）1.4A；直流电阻 DCR 257mΩ；封装 SMD，外形约 4.0 × 4.0 mm。适合用于中小功率开关电源与滤波场合。
二、产品特性
- 磁胶屏蔽结构，磁通外泄小，利于密集布板与 EMI 控制。
- 小体积（4×4mm）适合高密度 PCB 设计。
- 额定电流 1.2A，饱和电流 1.4A，能满足轻负载至中等负载的直流-直流 物料需求。
- DCR 较高（≈257mΩ），在额定电流下的铜损约为 I^2·R ≈ 1.2^2×0.257 ≈ 0.37W，选型时需考虑功耗与散热。
三、典型应用
- 手机、消费电子的降压（Buck）转换器输出电感；
- 电源滤波、去耦与噪声抑制电路；
- 工业控制与物联网模块的局部电源；
- 低功率电机驱动与便携设备供电模块。
四、设计与选型建议
- 连续工作电流建议留有余量，通常按额定电流的 70%–80% 作为长期使用参考，以避免过热与磁饱和。
- 关注 DCR 对效率的影响，如需更高效率可考虑 DCR 更低的型号或并联方案（需评估共流与磁饱和）。
- 饱和电流 1.4A 表示超过该点时电感量会明显下降，若开关峰值电流接近或超过此值应选更高 Isat 的器件。
- PCB 布局：使电感与开关元件、输出电容尽量靠近，走线短粗以降低串联阻抗与 EMI；若热量集中，考虑增加散热铜面或过孔。
五、焊接与储存
- 建议遵循常规无铅回流焊工艺，遵守厂商推荐的回流温度曲线（峰值温度及保温时间以实际数据为准）。
- 器件为 SMD，应按照防潮等级进行储存与贴片前返潮处理，避免吸潮导致焊接缺陷。
六、包装与订购
- 型号 FNR4012S6R8MT 中“4012”对应 4.0×4.0mm 封装，“6R8”表示 6.8µH 感值；具体包装与卷带（Tape & Reel）信息请向供应商确认。
- 选购时请确认批次的一致性（DCR、Isat 与规格公差），并索取样片或数据手册进行实测验证。
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