WMSIC Electronic Components

cjiang FTC252010S1R5MBCA

ModelFTC252010S1R5MBCA
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FTC252010S1R5MBCA
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FTC252010S1R5MBCA
Electronic Component
1
Package
SMD,2x2.5mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.058g
Inductor
1.5uH
Electronic Component
1
Electronic Component
BM0233263048
Current
3.4A
Resistor(DCR)
45mΩ
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
4.3A

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

FTC252010S1R5MBCA 产品概述

FTC252010S1R5MBCA 为长江微电(cjiang)推出的一款片式功率电感,额定性能面向中小功率开关电源与点载荷电源管理场景。器件采用 SMD 封装(2.5 × 2.0 mm,常称 2520 或 2010 型),体积小、适合集成化、高密度布局的电源设计。主要电气参数为标称电感 1.5 µH,公差 ±20%;额定持续电流 Irated = 3.4 A,饱和电流 Isat = 4.3 A;直流电阻 DCR ≈ 45 mΩ。

一、主要特性与优势

  • 体积小:2.5 × 2.0 mm SMD 封装,便于高密度 PCB 布局与自动贴装、回流工艺。
  • 适合中高电流输出:额定电流 3.4 A,可满足常见移动设备与嵌入式电源的点载荷需求;饱和电流 4.3 A 提供一定余量以应对启动与突发电流。
  • 较高的 DCR 可用于热管理与稳态损耗评估,结构适合连续工作下的可靠性需求。
  • 标称电感 1.5 µH(±20%)适配中等开关频率 DC–DC(如数百 kHz 到几 MHz)场景的滤波与储能需求。

二、典型应用场景

  • 同步降压/升压转换器中的电感(点载荷电源)。
  • 移动终端、蓝牙/IoT 模块、电池供电设备的电源模块。
  • 工业控制与通信设备的次级电源。
  • LED 驱动与电源滤波回路(需关注损耗与温升)。

三、关键电气参数与工程计算提示

  • 标称:L = 1.5 µH,公差 ±20%(实际范围约 1.2–1.8 µH)。在有直流偏置时电感值会下降,设计时应基于带直流电流测量或器件曲线图来确认。
  • DCR = 45 mΩ:功耗估算 P_loss ≈ I_rms^2 × DCR。以额定电流 3.4 A 为例,P_loss ≈ 3.4^2 × 0.045 ≈ 0.52 W(该损耗会导致器件升温,须考虑散热)。
  • 饱和电流 Isat = 4.3 A:当电感处于接近 Isat 状态时感量急剧下降,影响电感的储能与纹波抑制,设计通常保证工作电流有足够裕量(例如在 Irated 与 Isat 之间留出 20% 以上余量,或避免长期在接近 Isat 的工况)。
  • 开关频率与纹波电流:请依据具体拓扑计算电流纹波 ΔI = V / (L · f) 或规范公式并兼顾输入/输出电压关系,确保峰值电流低于 Isat 并考虑热降额。

四、选型与使用建议

  • 预留裕量:长期工作电流建议不超过 Irated,如系统存在较大脉冲或短时过流,应考虑更高 Isat 的款式或并联方案。
  • 注重直流偏置特性:若工作有较大直流偏置(例如高输出电流的小电感应用),应向厂商索取带直流偏置的 L–I 曲线或做实际测量。
  • 熔损与温升控制:DCR 较大时发热明显,PCB 需良好散热路径(加铜厚、加大接地/电源铜箔、必要时用热过孔)。
  • 封装限制:2.5×2.0 mm 小封装对焊盘设计、回流温度与机械应力较敏感,请按厂方推荐 land pattern 布局并控制回流曲线。

五、PCB 布局与焊接建议

  • 将电感靠近开关管与二极管/电容放置以缩短信号回路,减小寄生电感与噪声发射。
  • 使用足够的铜面积和过孔改善散热,若功耗较高可在下层布大铜平面。
  • 遵循制造商提供的焊盘尺寸与回流建议,回流时避免过长高温暴露以防磁芯或胶粘材料退化;具体峰值温度与曲线以厂方数据表为准。

六、测试与可靠性注意

  • 在实际样机上测量带直流偏置的电感值、温升与损耗,验证纹波电流下是否接近饱和。
  • 做长期热循环与振动测试以验证焊点与封装可靠性,尤其在振动或冲击较大的应用中。
  • 若用于关键或严格认证场合(如汽规),请向厂方确认相关认证与额定。

如需更详细的 L–I 曲线、温升曲线、推荐焊盘尺寸或官方数据表,可联系长江微电(cjiang)或向供应商索取 FTC252010S1R5MBCA 的完整规格书以便进行最终设计确认。

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