WMSIC Electronic Components

Chilisin MHCC10040-8R2M-R7 MHCC10040

ModelMHCC10040-8R2M-R7
PackageSMD
Brandchilisin
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
chilisin MHCC10040-8R2M-R7
Type
CHILISIN
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CHILISIN
Electronic Component
MHCC10040-8R2M-R7
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.063g
Inductor
8.2uH
Electronic Component
1
Electronic Component
BM0264918683
Current
6A
Resistor(DCR)
30mΩ
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.

MHCC10040-8R2M-R7 产品概述

一、产品简介

MHCC10040-8R2M-R7 是奇力新(Chilisin)推出的一款磁胶屏蔽式功率电感,标称电感值 8.2 µH,公差 ±20%,为表面贴装(SMD)封装,外形尺寸约 11.6 × 10.1 mm。该器件针对中大电流开关电源设计,额定电流 6 A,饱和电流(Isat)9 A,直流电阻(DCR)约 30 mΩ,适合作降压(buck)电感及一般电源滤波应用。

二、主要性能与特点

  • 电感值:8.2 µH ±20%,适用于中频开关频率场景
  • 高电流能力:额定连续电流 6 A,短时或脉冲可承受至 9 A 饱和点上限
  • 低 DCR:约 30 mΩ,有利于降低直流损耗但在大电流下仍需考虑热耗散
  • 磁胶屏蔽结构:减小磁通外泄,利于密集布板并降低对周围敏感器件的干扰
  • SMD 封装,便于自动化贴装与高密度 PCB 设计

三、典型电气与热设计考虑

  • 功耗估算:在额定电流 6 A 时,近似直流损耗 P = I^2·DCR = 6^2×0.03 ≈ 1.08 W;此为稳态发热来源,须做好散热与铜箔设计。
  • 电压降:直流电压降约 V = I·DCR = 6×0.03 = 0.18 V,需纳入整体效率与稳压设计评估。
  • 饱和与去电感化:当电流接近或超过 Isat(9 A)时,电感值会显著下降,应保证工作电流留有余量,尤其在大纹波或冲击电流环境下建议降额使用(常见建议 70–80% 额定值作为连续工作上限)。
  • 纹波电流与温升:纹波电流的 RMS 值对损耗影响更大,设计时应以实际 RMS 电流计算损耗并评估温升。

四、封装与 PCB 布局建议

  • 尽量采用宽短的走线连接电感到电源开关及输出电容,降低寄生电感与串联阻抗。
  • 在电感散热路径下方或周围使用较大铜箔区域并增加过孔以改善热传导(遵循厂商封装图与 PCB layout note)。
  • 屏蔽结构有助于减小外泄磁场,但仍建议将敏感模拟信号、振荡器等远离电感或加屏蔽隔离。
  • 贴装与回流焊应参照奇力新推荐的回流温度曲线与包装注意事项,避免多次高温回流导致性能劣化。

五、典型应用场景

  • DC-DC 降压转换器(同步/非同步 buck)
  • 负载开关及分立功率管理模块
  • 工业与通信电源滤波器
  • 汽车电子次级稳压(需验证温度与 AEC 要求)

六、选型与验证建议

  • 在最终设计中以实际工作频率、纹波电流与环境温度为依据,进行电感在直流偏置下的电感值和热特性验证。
  • 对于对温度与寿命有严格要求的应用,向供应商索取完整 Datasheet、温升曲线和长期可靠性数据。
  • 若系统对效率或体积有更高要求,可比较相近规格下 DCR、Isat 与封装尺寸,权衡热与电性能。

总结:MHCC10040-8R2M-R7 以其 8.2 µH 的电感值、6 A 的额定电流与磁胶屏蔽结构,适合追求高电流能力与抗干扰性的中功率开关电源设计。设计中需重视 DCR 带来的热耗与去额定裕度,按厂商推荐进行布局与热管理以保证长期稳定运行。

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