WMSIC Electronic Components

YJYCOIN YI201209U221-3R0T YI201209U221

ModelYI201209U221-3R0T
Package0805
BrandYJYCOIN
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
YJYCOIN YI201209U221-3R0T
Type
YJYCOIN
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
YI201209U221-3R0T
Electronic Component
1
Package
0805
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.041g
Electronic Component
1
Channel Count
1
Electronic Component
BM0266128081
Current
3A
@Frequency
220Ω@100MHz
Resistor(DCR)
80mΩ
Electronic Component
Electronic Component
Electronic Component
4000

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

YI201209U221-3R0T 片式磁珠产品概述

YI201209U221-3R0T是益嘉源(YJYCOIN)推出的一款0805封装高频电磁干扰(EMI)抑制磁珠,专为中大功率场景下的电源滤波与干扰抑制设计,兼顾低直流损耗与目标频段的干扰抑制能力,是消费电子、工业控制等领域的实用选型。

一、产品核心定位与设计目标

该磁珠的核心定位是大电流场景下的高频干扰抑制元件,设计目标明确:

  1. 针对100MHz附近频段的电磁干扰(如开关电源纹波、射频杂散)提供有效抑制;
  2. 保持低直流电阻(DCR),减少大电流传输时的功耗与压降;
  3. 采用小型化0805封装,适配高密度PCB设计需求。

二、关键性能参数解析

1. 频率-阻抗特性

该磁珠在100MHz频率下阻抗为220Ω(误差±25%),是其核心干扰抑制指标:

  • 100MHz是电子设备中常见的干扰频段(如开关电源的开关频率倍频、射频电路的杂散发射);
  • 220Ω的阻抗值能有效衰减该频段的共模/差模干扰信号,提升设备的电磁兼容性(EMC)。

2. 直流电阻(DCR)

DCR仅80mΩ,是大电流应用的关键优势:

  • 低DCR意味着在3A额定电流下,直流损耗仅为(I^2R = 3^2 \times 0.08 = 0.72W),发热可控;
  • 减少了电源传输路径的压降,提升了电源效率,尤其适合对功耗敏感的便携设备。

3. 额定电流与通道数

  • 额定电流3A:满足中功率设备(如手机快充模块、小型工业电源)的电流需求,避免过流导致的磁珠饱和或性能下降;
  • 单通道设计:结构简单,焊接与布局方便,适合单路电源滤波或信号线路的干扰抑制。

三、封装与工艺特性

1. 封装规格

采用0805封装(公制2012),体积仅2.0mm×1.2mm,符合小型化电子设备的PCB布局要求,可兼容常规回流焊、波峰焊工艺,焊接可靠性符合IPC-A-610标准。

2. 材料与工艺

  • 磁芯采用高性能锰锌铁氧体材料,兼顾高频阻抗特性与低DCR;
  • 电极采用镍锡镀层,焊接附着力强,耐温性能稳定,可适应-40℃~+85℃的工作温度范围(常规消费级/工业级标准)。

四、典型应用场景

该磁珠的性能匹配多类场景的干扰抑制需求:

  1. 消费电子电源滤波:如手机、平板的快充模块、笔记本电脑的DC-DC转换电路,抑制100MHz附近的开关纹波干扰;
  2. 工业控制设备:PLC(可编程逻辑控制器)的电源输入模块、伺服电机驱动的控制电路,提升设备抗电磁干扰能力;
  3. 通信终端设备:路由器、交换机的电源滤波电路,抑制射频信号的杂散发射;
  4. 车载小功率模块:如车载充电器、仪表盘控制电路,满足汽车电子的EMC要求(需确认具体温度与可靠性标准)。

五、选型与应用注意事项

  1. 频率匹配:若目标干扰频段偏离100MHz(如50MHz或200MHz),需参考磁珠的频率-阻抗曲线(通常厂家提供),确认该频段的阻抗是否满足抑制需求;
  2. 电流裕量:实际应用中需预留10%-20%的电流裕量(如最大电流不超过2.4A-2.7A),避免磁珠因过流饱和导致阻抗下降;
  3. PCB布局:磁珠应尽可能靠近干扰源(如开关电源芯片)或负载端,减少干扰信号的耦合路径;
  4. 温度环境:若工作环境温度超过85℃,需确认益嘉源提供的高温版本磁珠是否适配,避免性能衰减。

综上,YI201209U221-3R0T是一款平衡了高频抑制、低损耗与小型化的实用磁珠,适合中大功率设备的EMI优化场景,是电子工程师在电源滤波设计中的可靠选型。

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.