WMSIC Electronic Components

cjiang FXL1040-680-M FXL1040

ModelFXL1040-680-M
PackageSMD,11.5x10mm
Brandcjiang
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FXL1040-680-M
Type
SMD, 11.5X10MM
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FXL1040-680-M
Electronic Component
1
Package
SMD,11.5x10mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
2.932g
Inductor
68uH
Electronic Component
1
Electronic Component
BM0231141159
Current
2.5A
Resistor(DCR)
195mΩ
Electronic Component
Electronic Component
Electronic Component
500

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

FXL1040-680-M 产品概述

一、产品简介

FXL1040-680-M 是长江微电(cjiang, 长江微电)推出的一体成型功率电感,电感量为 68 µH,公差 ±20%,面向中低频功率滤波与储能应用。器件为 SMD 贴片封装,外形尺寸 11.5 × 10 mm,结构为一体成型(molded)设计,便于表面贴装与自动化生产,适合在空间受限且需抗振动的工业与消费类电源模组中使用。

二、主要电气参数

  • 电感值:68 µH(±20%)
  • 额定电流:2.5 A(连续导通条件下)
  • 饱和电流(Isat):3 A(用于评估电感量下降与磁饱和临界值)
  • 直流电阻(DCR):195 mΩ
  • 封装:SMD,尺寸 11.5 × 10 mm
  • 类型:一体成型功率电感

注:更多温度、电流-电感特性曲线与寿命数据请参考厂家详细数据手册。

三、特性与优点

  • 大电感量:68 µH 适合用作低频滤波与能量储存,减少输出纹波与升压/降压转换器中的电流变化。
  • 一体成型结构:提高机械强度和抗振性能,适合汽车、工控等严苛环境。
  • SMD 封装:兼容自动化贴装与回流焊工艺,利于产线高效生产。
  • 明确的电流等级:额定 2.5 A 与饱和 3 A,便于在设计中进行裕量选择与热管理计算。

注意:DCR 较大(195 mΩ),在额定电流下损耗不可忽视,应在热设计中充分考虑。

四、典型应用场景

  • DC-DC 降压/升压转换器的输出滤波与能量储存。
  • 电源输入滤波、后级电源模块。
  • LED 驱动器、充电管理、电池供电系统中的 EMI 滤波。
  • 工业控制、通信设备和消费电子中的中低频功率处理单元。

五、设计与选型建议

  • 功率损耗估算:在额定电流 2.5 A 条件下,铜损 P = I^2·DCR ≈ 2.5^2 × 0.195 ≈ 1.22 W;在 3 A 时约 1.76 W。该损耗会引起温升与效率下降,设计时应考虑散热与电感的热阻。
  • 饱和裕度:若电路可能出现短时峰值或大纹波电流,建议留有足够裕量,避免工作电流接近 Isat 以防电感量骤降影响稳定性。
  • 纹波与直流偏置:高直流偏置会降低有效电感,应结合实际电流波形测试电感随 DC 偏置的变化曲线。
  • PCB 布局:电感应靠近开关器件或输出端放置,走线尽量短且粗,输入输出旁配合充足旁路电容与接地回路以减小 EMI。

六、安装与可靠性注意事项

  • 使用兼容的无铅回流焊工艺进行贴装,遵循厂商推荐的回流温度曲线与焊接工艺窗口。
  • 储存与运输应避免潮湿与剧烈振动;如长期存放请按元件干燥与防静电要求处理。
  • 对于需经过高温老化或严苛环境验证的应用,建议向供应商索取加速寿命与温度循环试验报告。

总结:FXL1040-680-M 以其 68 µH 的大电感量、一体成型的机械可靠性和适配 SMD 制程的封装,适合用于需要中等电流与较大储能的电源滤波场合。但因 DCR 较大,实际使用时需重视功率损耗与热管理,并根据电流波形与饱和特性做充分验证与裕量设计。若需完整电气特性曲线与封装 3D/焊盘建议,请联系供应商获取官方数据手册。

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