WMSIC Electronic Components

cjiang FNR252012S2R2MT

ModelFNR252012S2R2MT
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR252012S2R2MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR252012S2R2MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.046g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0258614573
Current
1.25A
Resistor(DCR)
216mΩ
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.

FNR252012S2R2MT 产品概述

一、产品简介

FNR252012S2R2MT 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,公差 ±20%。该器件采用于 SMD 贴片封装(1008),专为中小电流功率电路设计,具有良好的磁屏蔽性与饱和特性,适合在空间受限且对电磁干扰要求较高的场合使用。

二、主要电气参数

  • 电感值:2.2 μH ±20%
  • 额定电流(Irms):1.25 A(连续工作电流,温升及环境条件相关)
  • 饱和电流(Isat):2.07 A(电感下降到额定值的 30% 或指定阈值时)
  • 直流电阻(DCR):216 mΩ
  • 类型:磁胶屏蔽电感(屏蔽型功率电感)
  • 封装:SMD(1008)

三、产品特点

  • 磁胶屏蔽结构:良好抑制泄漏磁通,减小对周围元件的磁干扰,便于高密度布局。
  • 高饱和电流:2.07 A 的饱和电流使其在瞬态突波或启动冲击时仍能保持稳定工作。
  • 小体积封装:1008 SMD 适配自动化贴装,利于紧凑型电源模块设计。
  • 低成本方案:适合成本敏感型产品的批量应用。

四、典型应用场景

  • 开关电源(DC-DC 降压/升压转换器)输入/输出滤波元件
  • 电源管理模块、充电器与移动设备电源滤波
  • LED 驱动电路及电源旁路滤波
  • EMI 抑制和电流成形场合

五、封装与焊接建议

  • 使用符合规范的回流焊温度曲线,避免过高峰值温度导致磁胶材料退化。
  • 贴片方向与焊盘设计应参考厂方推荐的 PCB 尺寸与焊盘栅格,以保证机械强度与热传导。
  • 对于高电流应用,建议在布局中考虑散热路径与铜箔加厚以降低温升。

六、选型注意事项

  • 电流余量:应按实际脉冲与平均电流计算余量,避免长期在额定电流边界工作。
  • DCR 损耗:216 mΩ 的直流电阻在高电流下会带来较大的 I^2R 损耗与热量,需评估效率与温升。
  • 温度与频率依赖:电感值与损耗随温度与工作频率变化,关键场合建议索取频率特性曲线及温升测试数据。
  • 饱和裕量:对存在大幅电流冲击的电路,应保证 Isat 足够高以免电感失去滤波效果。

七、可靠性与测试

  • 建议在产品验证阶段进行温度循环、湿热、跌落及焊接耐受性测试。
  • 对于关键应用,应要求并参考厂方提供的电感随温度、饱和曲线、纹波电流测试报告以及长期老化数据。

八、采购与技术支持

  • 型号:FNR252012S2R2MT,品牌:cjiang(长江微电),封装:SMD 1008。
  • 采购时请确认批次一致性,索取样品进行电路兼容性验证。如需详细规格书、频率响应曲线或推荐 PCB 布局,建议联系供应商或厂商技术支持获取完整资料与评估建议。

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.