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cjiang FXL0420-R68-M FXL0420
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FXL0420-R68-M
- Type
- SMD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FXL0420-R68-M
- Electronic Component
- 1
- Package
- SMD
- Type
- Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.297g
- Inductor
- 680nH
- Electronic Component
- 1
- Electronic Component
- BM0264590601
- Current
- 7A
- Resistor(DCR)
- 18mΩ
- 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.
FXL0420-R68-M 产品概述
一、产品简介
FXL0420-R68-M 是长江微电（cjiang）推出的一款一体成型功率电感，封装为SMD，外形尺寸约 4.2 × 4.4 mm。电感量为 680 nH（0.68 μH），额定电流为 7 A，饱和电流（Isat）为 9 A，直流电阻典型值 18 mΩ，公差 ±20%。该器件专为高电流、紧凑空间的开关电源与滤波应用设计，兼顾低损耗与良好的热稳定性。
二、主要参数
- 电感值：680 nH（±20%）
- 额定电流（Irated）：7 A
- 饱和电流（Isat）：9 A
- 直流电阻（DCR）：约 18 mΩ
- 封装类型：SMD，一体成型功率电感
- 外形尺寸：约 4.2 × 4.4 mm
- 品牌：cjiang（长江微电）
三、产品特点
- 高电流承载：7 A 的额定电流与 9 A 的饱和电流能满足中高功率开关电源以及电源模块的输出/输入滤波需求。
- 低损耗设计：18 mΩ 低 DCR 有助于减小铜损，提高转换效率并降低发热。
- 一体成型结构：机械强度高、抗振动、适合自动贴片和回流焊工艺，可靠性好。
- 小型化：4.2 × 4.4 mm 的体积利于高密度PCB布局，有利于移动设备和密集电源模块的设计。
四、典型应用场景
- DC-DC 降压/升压转换器（尤其为中大电流轨）
- 开关电源输出/输入滤波、电磁干扰抑制（EMI）
- 汽车电子与工业电源（对高电流与可靠性有要求的场合）
- LED 驱动、电池管理与能量采集模块
五、选型建议
- 关注直流偏置效应：在高直流电流作用下电感值会下降，选型时应考虑工作电流下的有效电感以及允许的纹波电流。
- 考虑温度与散热：长期高电流工作时注意器件温升，必要时在PCB上增加散热铜箔或热沉。
- 检查封装与焊接工艺：确保回流曲线符合一体成型贴片器件要求，避免过度热循环导致可靠性问题。
- 容差与电路稳定性：±20% 的公差适合大多数电源滤波场合，如对精密值要求高请选更高精度型号或配合电路调整。
六、PCB 布局与散热建议
- 尽量缩短电感与开关器件（MOSFET、整流器）之间的回路，减小寄生电感与辐射干扰。
- 使用宽厚铜迹连接电感引脚，必要时在焊盘下方布置过孔与内层铜平面以增强散热。
- 输出滤波中电感应靠近输出电容放置，降低环路面积，提高滤波效果。
七、测试与可靠性
- 出厂通常经过电感值、DCR、额定电流与饱和特性测试，并进行焊接性、温度循环与机械振动等可靠性检测。
- 实际使用中可对电感在工作电流下的温升、纹波损耗与电感值随直流偏置的变化进行评估，确保长期稳定运行。
八、订购与支持
型号：FXL0420-R68-M，品牌 cjiang（长江微电）。可按卷带（Reel）等SMD包装方式提供，具体最小起订量、交期及技术资料（贴装建议、回流曲线、EMI 数据等）请联系供应商或厂商技术支持获取。
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