WMSIC Electronic Components

cjiang FNR4018S2R2MT

ModelFNR4018S2R2MT
PackageSMD
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 FNR4018S2R2MT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4018S2R2MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.216g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0264491074
Current
2.6A
Resistor(DCR)
59mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

FNR4018S2R2MT 产品概述

一、产品简介

FNR4018S2R2MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,标称电感值 2.2 μH(±20%),面向开关电源与电源滤波应用设计。器件采用 SMD 封装,外形尺寸为 4.0 × 4.0 mm,结合屏蔽结构与磁胶工艺,兼顾高电流承载能力与良好抗电磁干扰性能。

二、主要参数

  • 电感值:2.2 μH,公差 ±20%
  • 额定电流(Irated):2.6 A(连续工作电流)
  • 饱和电流(Isat):3.2 A(显著下降前的峰值参考)
  • 直流电阻(DCR):≈59 mΩ(典型值)
  • 类型:磁胶屏蔽功率电感(Shielded)
  • 封装:SMD,4×4 mm
  • 品牌:cjiang(长江微电)

三、产品特性与优势

  • 低 DCR:59 mΩ 的直流电阻有利于降低导通损耗,提高转换效率与发热控制。
  • 高电流能力:2.6 A 的额定电流和 3.2 A 的饱和电流为中等功率点 DC–DC 转换与点负载供电提供保证。
  • 屏蔽结构:磁胶与屏蔽设计减少磁通外泄,降低对周围电路的耦合干扰,有利于布局密集的 PCB。
  • SMD 封装:适合自动贴装与回流焊工艺,节省空间并提升制造一致性。

四、典型应用场景

  • 同步降压/升压 DC–DC 转换器(点负载供电)
  • 电源输出滤波与能量贮存回路
  • 通信设备、电源模块和工业控制的局部电源(POL)
  • LED 驱动与便携式设备电源管理

五、工程与选型注意事项

  • 电流留裕:在实际设计中建议留有余量,连续工作电流应低于额定值以控制温升与避免长期退磁。
  • 饱和裕度:对峰值电流敏感的拓扑(如大纹波电流)需考虑 Isat,避免工作点进入明显饱和值区而导致电感下降影响稳压。
  • 热管理:虽然屏蔽结构有利于 EMI,但仍需关注器件周边散热路径,必要时布置散热铜箔或过孔。
  • 布局建议:电感应靠近开关管/功率管和整流输出,输入输出回路走线短且粗,减少环路面积以抑制 EMI。
  • 焊接与可靠性:遵循回流焊工艺规范,避免多次高温循环;存储与搬运避免强烈机械应力以保护磁胶层。

六、结论

FNR4018S2R2MT 以其 2.2 μH 的标称值、较低 DCR 和 2.6 A 的额定电流,适合中小功率 DC–DC 电源与电源滤波应用。屏蔽磁胶结构在保证电流能力的同时兼顾 EMI 抑制,是紧凑型电源设计中的实用选择。选用时应结合系统电流波形、纹波大小与热设计做综合评估,以确保长期稳定可靠工作。

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.