WMSIC Electronic Components

cjiang FTC252010S220MBCA

ModelFTC252010S220MBCA
PackageSMD,2x2.5mm
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 FTC252010S220MBCA
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FTC252010S220MBCA
Electronic Component
1
Package
SMD,2x2.5mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.055g
Inductor
22uH
Electronic Component
1
Electronic Component
BM0230945341
Current
850mA
Resistor(DCR)
1.1Ω
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
1.1A

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

FTC252010S220MBCA 产品概述

FTC252010S220MBCA 是长江微电(cjiang)推出的一款小型表面贴装电感器,外形尺寸为 2.0 × 2.5 mm,适合空间受限的移动设备与消费类电子的电源滤波与能量储存应用。该器件以 22 µH 电感值配合较高的直流电阻和中等电流规格,针对低速开关、滤波与去耦场合提供稳定的磁性能。

一、主要参数概览

  • 电感值:22 µH
  • 公差:±20%
  • 额定电流(Irated):850 mA(连续工作建议取较保守的额定值)
  • 饱和电流(Isat):1.1 A(电感值下降到额定值的特定比例时对应的电流)
  • 直流电阻(DCR):1.1 Ω
  • 封装形式:SMD,尺寸 2.0 × 2.5 mm
  • 品牌:cjiang(长江微电)
  • 型号:FTC252010S220MBCA

二、典型特性与优点

  • 小尺寸:2 × 2.5 mm 的微型封装便于在高密度 PCB 上布局,适合便携设备与模块化电源解决方案。
  • 较大电感量:22 µH 对低频滤波和能量储存较为有利,可有效抑制低频纹波与干扰。
  • 中等电流能力:额定 850 mA、饱和 1.1 A,适用于中低功率轨(如 1A 以下的 DC-DC 输出或滤波节点)。
  • 标准化 SMD 制程兼容:适合常规回流焊工艺,利于自动化贴装与大批量生产。

三、应用场景

  • 开关电源(DC-DC)输出电感,用于降压(buck)或升压(boost)器件的能量传输与滤波(适用于开关频率不太高或对效率要求不是极端苛刻的场合)。
  • 电源输入/输出滤波:配合电容形成 LC 滤波器,抑制电源纹波与外来干扰。
  • EMI 抑制与共模/差模滤波(单端差模滤波器):用于音频、数字电路与射频前端的简单抗扰处理。
  • 各类消费电子、物联网终端、电池管理和传感终端的电源去耦。

四、选型注意事项

  • DCR 较高:1.1 Ω 的直流电阻在同类体积/电感范围内偏高,会引起明显的 I^2R 损耗和额外的压降,因此在追求高效率或较大输出电流(接近 1A)时需谨慎评估。
  • 电流余量与热升:长期在接近额定电流下工作会导致发热和电感值漂移,建议在持续工作时对额定电流做 20–30% 的保守降额,以保证可靠性与稳定性。
  • 饱和特性:Isat 为 1.1 A,超过此电流电感量会明显下降,可能影响开关电源的环路稳定与输出纹波,设计时应保证峰值电流不超过该值。
  • 频率响应:22 µH 在高开关频率下等效阻抗主要由绕组寄生参数决定,若用于高频高效率转换器,应同时关注器件的交流损耗和峰值电流性能,必要时选用低 DCR 或专用功率电感。

五、封装与焊接建议

  • 封装尺寸为 2.0 × 2.5 mm 的 SMD 设备,适配常规 0603/0805 相近的 PCB 布局。焊盘设计应保证足够的焊接面与热量分布,以利于可靠焊接与热散逸。
  • 推荐按厂家提供的回流焊工艺曲线进行焊接,避免过高的回流峰值温度或过长高温停留,以防磁芯或胶粘材料受损。
  • 布局时将电感放置在靠近噪声源或电源口处,输出/输入端与旁路电容尽量缩短走线,降低寄生阻抗与 EMI。

六、可靠性与替代方案考量

  • 在需要长期高可靠性的应用(如工业或汽车)时,应确认厂家出具的温度循环、机械冲击与湿热等可靠性测试报告。
  • 若系统对效率或压降敏感,可考虑选用更低 DCR 的功率电感或体积稍大的器件以降低损耗;若体积更关键且电流更小,可在同类封装中寻找更低电流和更低 DCR 的产品。

总结:FTC252010S220MBCA 以其小尺寸与较大电感值适合空间受限且侧重低频滤波的电源应用,但 1.1 Ω 的 DCR 提示在设计中应重视效率与发热影响,合理进行电流降额与热管理,可在中低功率场合提供稳定的滤波与储能功能。若需要更高效率或更大电流,建议比较低 DCR 与更高饱和电流的替代器件。

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