WMSIC Electronic Components

cjiang FTC252012SR33MBCA

ModelFTC252012SR33MBCA
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 FTC252012SR33MBCA
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FTC252012SR33MBCA
Electronic Component
1
Package
SMD,2x2.5mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.066g
Inductor
330nH
Electronic Component
1
Electronic Component
BM0264900087
Current
6.8A
Resistor(DCR)
11mΩ
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
8.3A

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

FTC252012SR33MBCA 产品概述

FTC252012SR33MBCA 是长江微电(cjiang)推出的一款小型功率电感器,规格为 330 nH ±20%,额定电流 6.8 A,饱和电流(Isat)8.3 A,直流电阻(DCR)约 11 mΩ,封装为 SMD,外形尺寸约 2.0 × 2.5 mm。该器件以其紧凑体积、高电流承载能力和相对较低的 DCR 在紧凑型电源模块与开关电源设计中具有良好的适配性。

一、主要参数一览

  • 电感值:330 nH ±20%
  • 额定电流(Irated):6.8 A(连续工作条件下推荐值)
  • 饱和电流(Isat):8.3 A(在此电流下电感显著下降)
  • 直流电阻(DCR):11 mΩ(典型值)
  • 封装形式:SMD,尺寸约 2 × 2.5 mm
  • 应用类型:功率电感(用于开关电源、点位负载等)

二、器件特性与优势

  • 小体积高电流:2 × 2.5 mm 的 SMD 尺寸适合高密度 PCB 布局,同时 Irated 达到 6.8 A,适合高电流点位供电。
  • 低 DCR:11 mΩ 的低直流电阻可有效降低铜耗,提高效率,减小温升(实际损耗还与铜箔、频率相关)。
  • 良好抗饱和性:Isat 为 8.3 A,在短时冲击电流或峰值电流情况下仍能维持较好的磁性能。
  • 通用兼容性:330 nH 的量级适合用于高频降压(buck)电路、DC-DC 模块的滤波与储能元件。

三、典型应用场景

  • 手机、平板、可穿戴等便携设备的点位电源(POL)与分轨电源模块;
  • 开关稳压器(尤其是同步降压型)中的电感元件;
  • 通信设备、网络设备与消费类电子的功率滤波与能量存储;
  • 工业与汽车电子的局部电源(需参考厂家温度与可靠性规范)。

四、设计与选型建议

  • 电流裕度:实际选型时应让工作电流低于额定电流 6.8 A,以控制温升并保证长期可靠性。对短时脉冲电流,应确保不超过 Isat(8.3 A),或评估允许的电感衰减对系统的影响。
  • 考虑直流偏置影响:实际工作时电感值会随直流偏置下降,尤其在高电流下影响明显,建议参考厂家给出的电感-电流曲线以确认满足纹波电流与输出电压要求。
  • 损耗估算:可用近似公式 P_cu ≈ I_rms^2 × DCR 估算铜耗。例如在连续 6.8 A 条件下,P_cu ≈ 6.8^2 × 0.011 ≈ 0.51 W(为近似值,实际应考虑温升与散热条件)。
  • 频率与核心损耗:在高开关频率下,除铜损外还应关注磁芯损耗,必要时参照厂方的频率特性与损耗曲线选择或并联/更换型号。

五、PCB 布局与安装要点

  • 最短回流路径:将电感置于开关 节点与电感输入/输出路径上,保持走线短且宽,减少寄生阻抗与 EMI。
  • 散热考虑:尽量使用较大铜箔面积的焊盘与必要的过孔(热通孔)以增强散热;若接近热源或在高环境温度使用,应做额外散热设计或选更高额定电流型号。
  • 焊接工艺:该器件为 SMD,适用于回流焊装配。具体回流温度曲线与湿热储存等级应参照厂方推荐,按通用 IPC/JEDEC 工艺规范操作以避免材料应力与失效。
  • 机械应力:贴装时避免过大机械挤压或弯曲 PCB 边缘,以免破坏器件结构或焊点。

六、可靠性与测试要点

  • 温升测试:在目标工作点进行温升与热阻测试,确保长期工作温度在器件规范范围内;
  • 电感稳定性:在实际工作电流与温度下测量电感值与 DCR,验证是否满足系统需求;
  • 过载测试:对可能存在的短路或冲击电流场景,评估器件在峰值电流下的磁饱和与温度容限。

总结:FTC252012SR33MBCA 是一款面向高密度电源应用的紧凑型功率电感,提供 330 nH ±20% 的能量存储能力、较低的 DCR(11 mΩ)以及良好的电流承载能力(Irated 6.8 A,Isat 8.3 A)。在选用时应综合考虑工作电流、DC 偏置导致的电感衰减、散热条件与开关频率对核心损耗的影响,并按厂方建议的安装与回流工艺完成 PCB 设计与焊接。若需更详尽的电磁特性曲线、频率损耗或回流曲线,请联系长江微电获取完整数据手册。

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