WMSIC Electronic Components

Xiangyizhongyuan/Xiangjiang CA45-A016K475T CA45

ModelCA45-A016K475T
PackageCASE-A_3216
BrandElectronic Component
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CA45-A016K475T
Type
Xiangyi Zhongyuan/Xiangjiang
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
CA45-A016K475T
Electronic Component
1
Electronic Component
4.7uF
Package
CASE-A_3216
Electronic Component
Capacitor
Electronic Component
±10%
Electronic Component
0.061g
Electronic Component
1
Electronic Component
BM0258752248
Operating Temperature
55℃~+125℃
Voltage
16V
Electronic Component
Electronic Component
Electronic Component
2000
Resistor(ESR)
4Ω@100kHz

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

CA45-A016K475T 产品概述

一 产品简介

CA45-A016K475T 为湘怡中元/湘江品牌的钽电解电容,标称容量 4.7µF,公差 ±10%,额定电压 16V。采用 CASE-A_3216 封装,典型外形尺寸约 3.2 × 1.6 mm(请以实物检验尺寸图为准)。该型号在 100 kHz 测试条件下等效串联电阻(ESR)为 4Ω,工作温度范围 -55℃ 至 +125℃,适用于对体积和容量有中等要求的电子设备中做滤波、去耦和时间常数等用途。

二 主要参数(摘要)

  • 容值:4.7µF
  • 容差:±10%
  • 额定电压:16V
  • ESR:4Ω @ 100 kHz
  • 工作温度:-55℃ ~ +125℃
  • 封装:CASE-A_3216(约 3.2×1.6 mm)
  • 极性:有极性(钽电容,需注意正负极)

三 电性能与使用建议

  • ESR 较高(4Ω @100kHz),表明该电容对高频纹波的旁路能力有限,适合低频或稳态滤波、耦合/去耦中对瞬态要求不高的场景。若需处理较大高频或高幅值纹波,应优先考虑陶瓷或固态聚合物电容(低 ESR 型)。
  • 钽电容对极性敏感,严禁反向电压或瞬间反向脉冲。系统设计时建议对额定电压做降额使用(常见建议 50%~80% 额定电压工作)以提高长期可靠性。
  • 纹波电流产生的损耗与 ESR 成正比,选择该型号时需核算实际 RMS 纹波电流:P = I_rms^2 × ESR,确保温升与功耗在可接受范围内。

四 可靠性与温度特性

  • 工作温度范围广(-55℃ 至 +125℃),在高温下容量会随温度与电压变化,需参考厂方温度/电压特性曲线进行设计预留。
  • 钽电容在遭受浪涌电流或瞬态电压时存在安全风险(可能导致炽热或短路),推荐在电源入口或存在大浪涌的线路增加限流元件或使用更稳健的器件组合。
  • 正确的焊接工艺(符合回流温度曲线)与良好的湿度保存可以降低焊接缺陷与可靠性隐患。

五 典型应用场景

  • 低频去耦与整流后滤波(对纹波幅值较小且频率较低的场合)
  • 模拟电路中的耦合、时间常数电路与低频滤波
  • 体积受限、需要中等容量的便携式设备或控制模块(在设计时注意电压降额与纹波限制)
  • 不推荐用于高频开关电源的主滤波或需低 ESR 的高速去耦点

六 选型与使用注意事项

  • 若电路存在高频大幅纹波或要求低阻抗旁路,选择陶瓷(MLCC)或固态聚合物替代;若要求极性容忍度和能量密度,且电压稳定,可选本钽电容并采取降额使用。
  • PCB 布局:靠近被滤节点放置,缩短焊盘间距,保证极性标识清晰;焊盘设计应满足热舒适性与机械强度要求。
  • 存储与处理:避免长时间暴露在潮湿环境,焊接前遵守干燥/回流规范;装配时避免超过额定温度、避免机械冲击和极性反接。
  • 若需更详尽的电气特性曲线(温度-容量、频率-ESR、浪涌耐受等),请向供应商索取完整数据手册与可靠性测试报告。

总结:CA45-A016K475T 为一款体积小、容量中等的钽电容,适合对体积和容量有折衷要求且工作在中低频纹波环境的场合。设计时注意电压降额、纹波与极性保护,以保证长期可靠运行。

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.