WMSIC Electronic Components

cjiang FTC322512S2R2MBCA

ModelFTC322512S2R2MBCA
PackageSMD,2.5x3.2mm
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FTC322512S2R2MBCA
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FTC322512S2R2MBCA
Electronic Component
1
Package
SMD,2.5x3.2mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.086g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0233347742
Current
3.6A
Resistor(DCR)
58mΩ
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
4.6A

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

FTC322512S2R2MBCA 产品概述

一、产品简介

FTC322512S2R2MBCA 是长江微电(cjiang)推出的一款表面贴装功率电感,电感值为 2.2 μH(标称,±20%)。该器件以小尺寸(SMD, 2.5 × 3.2 mm)和较高的电流处理能力为特点,适合用于开关电源的输出滤波、电流环路以及各类点载负载(POL)电源模块。典型应用包括消费类电子、通信设备、工业控制和其他要求高效率、紧凑布局的电源系统。

二、主要参数

  • 电感值:2.2 μH,公差 ±20%
  • 额定电流(Irated):3.6 A(热稳定条件下允许的连续电流)
  • 饱和电流(Isat):4.6 A(在厂家定义的饱和判据下电感显著下降时对应的电流)
  • 直流电阻(DCR):≈58 mΩ
  • 封装形式:SMD,外形尺寸 2.5 × 3.2 mm
  • 品牌/生产:cjiang(长江微电)

三、器件特点与优势

  • 小体积高电流:2.5×3.2 mm 的尺寸适合板上密集布局,同时额定电流 3.6 A、饱和电流 4.6 A 能满足中等功率点载要求。
  • 低 DCR:约 58 mΩ 的直流电阻在同等级产品中能提供较低的 I^2R 损耗,有助于提高系统效率。
  • 兼容贴片工艺:适用于标准无铅回流焊工艺,便于批量贴装和自动化生产。
  • 成本与可用性:作为通用型功率电感,适合大批量应用,性价比较高。

四、应用场景

  • DC-DC 降压(Buck)/升压(Boost)转换器的输出滤波或能量储存环节。
  • 点载电源(POL)用于 FPGA、CPU、ASIC 等器件的局部电源。
  • 通信/网络设备、便携式终端、电源模块以及 LED 驱动电路等场合。

五、选型与使用建议

  • 电流裕量:建议系统设计时将峰值电流控制在 Isat 以下,并使工作平均电流低于或接近 Irated。为保证可靠性,若工作环境温度较高或通风受限,可考虑适当降额(例如额定电流的 80% 以下)。
  • 损耗估算:仅计算直流损耗时,I^2·DCR 可作为近似值。按 Irated=3.6 A 计算,直流损耗约为 3.6^2 × 0.058 ≈ 0.75 W,需注意散热与温升。实际总损耗还包含磁芯损耗,随工作频率和磁通摆幅上升。
  • 布局建议:电感应尽量靠近开关管/整流器与负载之间放置,输入/输出走线短粗,充足过孔以降低寄生阻抗;保持旁边关键回流路径连续,减少环路面积以降低 EMI。
  • 测试验证:设计完成后应在实际工作频率与温度下测量电感值、温升与效率,验证是否满足系统要求。

六、封装与可靠性注意

  • 封装为 SMD,尺寸 2.5×3.2 mm,焊接时遵循厂家的回流温度曲线以保证良好焊接性与可靠性。
  • 储存与处理:避免机械冲击与过度弯曲,应防潮防尘,贴片前按标准进行回流前预处理。
  • 饱和判定:Isat 的具体测试条件(例如允许的电感下降百分比)请参照长江微电提供的详细数据表,实际应用时建议留足裕量以避免磁芯饱和。

七、总结

FTC322512S2R2MBCA 是一款面向中高电流点载的紧凑型 SMD 功率电感,凭借 2.2 μH 的电感值、3.6 A 的额定电流与 4.6 A 的饱和电流,适合在空间受限且需较大电流的开关电源与点载场景中使用。设计时应重视热管理、寄生阻抗与饱和裕量,必要时与供应商确认详细的频率响应与热特性参数以完成最终选型。

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