WMSIC Electronic Components

cjiang FNR4030S470MT

ModelFNR4030S470MT
PackageSMD,4x4mm
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 FNR4030S470MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4030S470MT
Electronic Component
1
Package
SMD,4x4mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.338g
Inductor
47uH
Electronic Component
1
Electronic Component
BM0231111351
Current
800mA
Resistor(DCR)
579mΩ
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.

FNR4030S470MT 磁胶屏蔽功率电感产品概述

一、产品身份与品牌基础

FNR4030S470MT是长江微电(cjiang) 推出的一款磁胶屏蔽型贴片功率电感,属于中低功率电感范畴。型号中:

  • “4030”对应封装尺寸(4×4mm贴片,行业常规厚度约3mm);
  • “470”表示电感值为47μH(微亨);
  • “MT”为长江微电产品系列标识,代表磁胶屏蔽工艺。

二、核心参数与性能解析

该产品的关键参数直接决定其适用场景,具体解析如下:

  1. 电感值与精度:额定电感47μH,精度±20%(实际范围37.6μH~56.4μH),满足大多数电源电路的储能、滤波基础需求;
  2. 电流能力:
    • 额定电流(Irms)800mA:可持续稳定工作的最大直流电流,超过会导致温升过高,缩短寿命;
    • 饱和电流(Isat)1A:电感值下降30%时的最大峰值电流,电路峰值需控制在该值内,否则储能能力骤降;
  3. 直流电阻(DCR):579mΩ(毫欧),是绕组的直流损耗电阻,工作时产生I²R热量,需结合电路功耗预算;
  4. 封装形式:SMD贴片4×4mm,适配高密度组装,符合便携式设备小型化趋势。

三、磁胶屏蔽的核心优势

相比普通屏蔽电感,磁胶屏蔽工艺带来三大实用价值:

  1. 低电磁干扰(EMI):磁胶包裹磁芯可抑制漏磁,减少对周边射频、传感器电路的干扰,适合通信、医疗等EMI敏感场景;
  2. 耐温与可靠性:磁胶采用耐高温树脂,支持-40℃~125℃工作温度(行业常规),贴片过程中不易因机械应力碎裂,提升生产良率;
  3. 低噪音:磁致伸缩产生的工作噪音更低,提升设备使用体验(如智能音箱、耳机等音频设备)。

四、典型应用场景

该产品因参数平衡、封装紧凑,主要适配以下场景:

  1. 便携式电子:智能手机、平板、智能手表的DC-DC降压模块(CPU、内存供电),利用小封装适配紧凑空间;
  2. LED驱动电源:小功率LED台灯、背光模组的恒流驱动电路,低EMI避免干扰显示;
  3. 智能家居:智能门锁、温湿度传感器的电源模块,适应低功耗设计,同时减少对传感器的干扰;
  4. 通信终端:无线耳机、蓝牙音箱的PMU(电源管理单元),控制EMI避免影响射频信号;
  5. 汽车辅助模块:车载USB充电口、后视镜控制器的小功率电源电路(需确认耐温符合汽车级需求)。

五、选型与使用注意事项

  1. 电流匹配:持续电流≤800mA,峰值≤1A,建议预留10%~20%余量,避免过载;
  2. 精度需求:若电路需更高精度(如精密滤波),需换用±10%精度型号;
  3. 散热布局:DCR损耗会产热,布局时需与发热元件保持5mm以上距离,避免局部过热;
  4. 焊接规范:符合SMD回流焊温度曲线(峰值温度≤245℃),避免高温损坏磁胶;
  5. EMI验证:高EMI要求场景需实际测试,确认满足EMC标准(如CE、FCC)。

六、产品价值总结

FNR4030S470MT是长江微电针对小型化、低干扰场景推出的高性价比电感,以4×4mm封装、800mA额定电流为核心,结合磁胶屏蔽的低EMI、高可靠性优势,精准覆盖便携式电子、LED驱动等主流应用。其参数平衡、成本可控,是替代传统屏蔽电感的实用选择。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.