WMSIC Electronic Components

cjiang FAUL0518-4R7MT FAUL0518

ModelFAUL0518-4R7MT
PackageSMD,5.4x5.2x1.6mm
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 FAUL0518-4R7MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FAUL0518-4R7MT
Electronic Component
1
Package
SMD,5.4x5.2x1.6mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.34g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0264799479
Electronic Component
AEC-Q200
Current
3.5A
Resistor(DCR)
85mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

FAUL0518-4R7MT 车规级功率电感产品概述

一、产品定位与核心价值

FAUL0518-4R7MT是长江微电(cjiang)推出的车规级SMD功率电感,针对汽车电子、工业电源等对「小体积、高电流承载、严苛可靠性」有强需求的场景设计。其核心价值在于**「紧凑封装下的高电流密度+车规级可靠性」**,可解决高密度电路中储能、滤波的关键痛点,同时适配自动化生产与成本管控需求。

二、关键参数深度解析

1. 电感核心特性

  • 电感值:4.7μH,精度±20%——满足多数DC-DC转换器、滤波电路的电感量需求,精度范围适配工业/车载的常规应用场景,无需额外高精度校准;
  • 电感变化:额定电流下电感值无明显下降,饱和电流时仅下降30%(行业常规要求),性能稳定性突出。

2. 电流承载能力

  • 额定电流:3.5A:连续工作时电感值无衰减的最大电流,可稳定支撑车载DC-DC、工业电源的持续负载;
  • 饱和电流Isat:4A:电感值下降30%时的极限电流,两者差值(0.5A)提供充足余量,可应对电路突发电流波动(如负载瞬间启动),避免电感饱和导致的电源失效。

3. 损耗与效率

  • 直流电阻(DCR):85mΩ:低DCR意味着电感自身功率损耗小(公式:(P=I^2R)),能提升电源转换效率3%~5%,同时减少发热,降低散热设计成本。

4. 封装尺寸

  • 5.4×5.2×1.6mm(SMD贴片):超小体积适配车载、工业设备的紧凑空间(如车载中控、服务器主板),支持自动化贴片生产,大幅降低组装人工成本。

三、封装设计与可靠性保障

1. 车规级认证核心

通过AEC-Q200认证——汽车电子元器件的行业金标准,需通过以下严苛测试:

  • 温度循环:-40℃~125℃(1000次循环);
  • 振动冲击:10~2000Hz(加速度1.5g);
  • 湿度暴露:85℃/85%RH(1000小时);
  • 盐雾测试:5%NaCl溶液(96小时)。
    确保在车载恶劣环境(高低温、振动、潮湿)下长期稳定工作(寿命≥10年)。

2. 工艺与结构优势

  • 磁芯材料:选用高性能合金/铁氧体,兼顾高磁导率与低损耗,避免磁饱和时的性能突变;
  • 引脚设计:符合IPC-J-STD-001标准,焊接可靠性高,减少虚焊、假焊风险;
  • 一致性管控:每批次电感的电感值、DCR、电流参数波动≤5%(远低于行业10%的标准),降低下游客户的测试筛选成本。

四、典型应用场景

1. 汽车电子领域

  • 车载DC-DC转换器(12V转5V/3.3V电源模块);
  • 车载充电机(OBC)的滤波/储能电路;
  • LED车灯驱动(日间行车灯、氛围灯恒流模块);
  • 车载信息娱乐系统(IVI)的电源滤波。

2. 工业电源领域

  • 低功耗工业电源的储能电感;
  • 服务器/通信设备的DC-DC降压模块;
  • 光伏逆变器的滤波电路。

3. 消费电子领域

  • 65W PD快充充电器的升压/降压电感;
  • 无人机电源管理模块的储能元件。

五、品牌与市场适配性

长江微电(cjiang)作为国内功率电感主流厂商,拥有12年车规级元器件研发经验,产品覆盖从0.1μH到1000μH的全系列功率电感。FAUL0518-4R7MT凭借「车规认证+小体积+高电流」的组合,可替代TDK、Murata等进口品牌的同类产品,在成本(低20%~30%)、交期(缩短15天)上更具优势,适合国内汽车电子、工业客户的国产化替代需求。

该产品已实现量产,支持样品申请与批量定制,可满足不同客户的电路设计需求。

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