WMSIC Electronic Components

PSA FS55X476K350LRG

ModelFS55X476K350LRG
Package2220
BrandPSA
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

18 specifications

Core information

Product name
PSA FS55X476K350LRG
Type
PSA
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FS55X476K350LRG
Electronic Component
1
Electronic Component
47uF
Package
2220
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.837g
Electronic Component
1
Electronic Component
BM0265313020
Electronic Component
X7R
Voltage
35V
Electronic Component
Electronic Component
Electronic Component
1000

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

FS55X476K350LRG 多层陶瓷电容器(MLCC)产品概述

FS55X476K350LRG是PSA信昌电陶推出的一款中高压X7R温度系数MLCC,针对工业控制、通信设备、电源模块等领域的滤波、耦合、去耦需求设计,兼顾温度稳定性、容值密度与机械可靠性,是替代电解电容(如铝电解)的理想选择。

一、核心参数规格详解

该产品的关键参数围绕容值、精度、温度特性与封装展开,具体如下:

  1. 容值与精度:标称容值47μF(型号中“476”表示,即47×10⁶ pF),精度±10%,满足绝大多数常规电路的误差要求,无需因精度问题过度降额。
  2. 额定电压:35V(型号“350”对应),适用于直流(DC)35V以内、交流(AC)3.5V以内的电路(MLCC交流电压需降额至10%额定值,避免介质击穿)。
  3. 温度系数:X7R(符合EIA标准),温度范围覆盖-55℃+125℃,电容变化率控制在±15%以内——既避免了Y5V类电容的温度漂移过大,又比C0G类电容的容值密度高35倍。
  4. 封装尺寸:2220(英制),公制规格为5.6mm×5.0mm×1.2mm(典型厚度),贴片式设计适配SMT自动化生产,平衡了容值上限与PCB占位面积。

二、封装与结构特性

  1. 2220封装的适配性:比0805(2.0×1.2mm)容值上限高约10倍,比3225(8.0×5.0mm)占位小30%,适合中等功率密度的电路设计(如电源模块的紧凑布局)。
  2. 多层陶瓷结构优势:无极性设计(无需区分正负极),抗振动性能优于电解电容(振动加速度可达15g,500Hz~2000Hz),且无电解液干涸、漏液等老化问题,寿命远超电解电容。
  3. 环保电极材料:采用镍(Ni)电极,符合RoHS与REACH指令,无铅环保,适配绿色制造需求。

三、X7R温度系数的技术价值

X7R是MLCC中平衡温度稳定性与容值密度的主流温度系数,该产品的X7R特性带来三大核心价值:

  1. 宽温场景稳定:在工业环境(-40℃+85℃)、户外设备(-20℃+60℃)甚至部分汽车非车载场景(-55℃~+125℃)下,电容变化率<±15%,避免电路滤波效果下降、信号耦合失真。
  2. 容值密度优势:相比C0G(温度系数0±30ppm/℃),相同封装下容值可提升3~5倍,适合需要大容值但PCB空间有限的设计(如笔记本电脑PMU滤波)。
  3. 成本可控:比NPO(C0G的另一种表述)成本低20%~30%,在非超高精度场景下可有效降低BOM成本。

四、可靠性与环境适应性

PSA信昌电陶的生产工艺确保该产品具备高可靠性:

  1. 耐温与耐湿:通过IEC 60068-2-67湿热试验(90%RH,40℃,1000小时),性能衰减<5%;工作温度范围覆盖-55℃~+125℃,满足工业级与部分汽车级需求。
  2. 机械强度:抗冲击性能(1000g,0.1ms)与抗弯曲性能(5mm,10次)符合JIS C 5102标准,适合振动环境(如工业变频器、车载设备)。
  3. 长寿命:在额定条件下(25℃,额定电压),预期寿命可达10万小时以上,无电解电容的“寿命倒计时”问题。

五、典型应用领域

FS55X476K350LRG的参数特性使其适配多个场景:

  1. 电源模块:开关电源(SMPS)的输出滤波、输入去耦,DC-DC转换器的储能环节(替代铝电解电容,减少体积)。
  2. 通信设备:基站射频单元的耦合电容、路由器电源滤波(抑制EMI干扰)。
  3. 工业控制:PLC、变频器的控制电路滤波,传感器信号耦合(宽温稳定保障工业环境可靠性)。
  4. 消费电子:平板电视、笔记本电脑的PMU滤波,音频电路耦合(无极性设计简化布线)。

六、选型与替换注意事项

  1. 替换原则:需匹配容值、精度、电压、温度系数与封装,例如村田GRM31CR61C476K(35V,X7R,2220)可直接替换。
  2. 降额要求:长期工作时,直流电压需≤28V(额定电压的80%);交流电压需≤3.5V(额定电压的10%),避免介质老化。
  3. 并联/串联:如需更大容值,可并联多个(注意ESR匹配);如需更高电压(如50V),可串联2个(无极性无需反向)。

该产品凭借X7R的温度稳定性、2220封装的尺寸优势与PSA的可靠性工艺,成为中高压MLCC领域的高性价比选择,适配多行业的电路设计需求。

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.