WMSIC Electronic Components

AVX TAJR225K016RNJ

ModelTAJR225K016RNJ
PackageCASE-R-2012-12(mm)
BrandAVX
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

20 specifications

Core information

Product name
AVX TAJR225K016RNJ
Type
AVX
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
AVX
Electronic Component
TAJR225K016RNJ
Electronic Component
1
Electronic Component
2.2uF
Package
CASE-R-2012-12(mm)
Electronic Component
Capacitor
Electronic Component
±10%
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0227256338
Operating Temperature
55℃~+125℃
Voltage
16V
Electronic Component
Electronic Component
Electronic Component
2500

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

TAJR225K016RNJ 产品概述

一、产品简介

TAJR225K016RNJ 是 AVX 推出的固体钽电容器,标称电容为 2.2 µF,容差 ±10%,额定电压 16 V,工作温度范围 -55 ℃ 至 +125 ℃。封装标识为 CASE-R-2012-12(常用于 2012 类封装系列),体积小、容值密度高,适合对体积和稳定性有要求的电子设备。器件属于极性(有正负极)钽电容,应按极性正确安装使用。

二、主要特性

  • 容值:2.2 µF,精度 ±10%;
  • 额定电压:16 V;
  • ESR(等效串联电阻):6.5 Ω @ 100 kHz(由厂方给定的典型/测试值);
  • 工作温度:-55 ℃ ~ +125 ℃;
  • 品牌:AVX,封装:CASE-R-2012-12(适合表面贴装工艺);
  • 体积效率高、长期容量稳定性良好,适合滤波、储能与去耦应用。

三、关键参数解读与应用影响

  • 电容与容差:2.2 µF ±10% 适合常见去耦与中低频滤波场景;
  • 额定电压 16 V:适用于 5 V、12 V 等低压电源线路的局部滤波或旁路;在高可靠性设计中建议采用电压降额(见后文);
  • ESR = 6.5 Ω @ 100 kHz:相对较高的 ESR 表明在高频大电流去耦或高纹波环境下能量耗散较大,动态响应不如超低 ESR 的陶瓷或某些铝电解电容。该特性使其更适合低频滤波、稳压器输出滤波或作为储能/稳定元件,而非高频瞬态去耦的主选元件。若用于多级滤波,可与低 ESR 的陶瓷电容并联以覆盖宽频带。

四、典型应用场景

  • 电源滤波与稳压器输出端(降低输出纹波,提升稳定性);
  • 中低频旁路与去耦(当空间受限需要较大容值时);
  • 时间常数电路与能量储存(要求较高电容密度的便携设备);
  • 工业控制与仪器仪表的电源旁路(在允许较高 ESR 的场合);
  • 与陶瓷电容并联构成宽频带滤波网络(陶瓷负责高频,钽负责中低频与保持容量)。

五、使用与可靠性建议

  • 极性注意:钽电容为极性器件,必须按正确极性焊接;反接会导致电容损坏甚至起火;
  • 电压降额:为提高长期可靠性,建议设计时对额定电压进行去额(derating)。常见做法是将工作电压控制在额定电压的 50%~80% 范围,根据工作环境及关键性可选更严格的降额策略(例如关键电源采用 ≤50%);
  • 启动/浪涌电流限制:钽电容对浪涌电流敏感,避免在上电瞬间承受大电流冲击;必要时在电路中加入限流措施或缓启动电路;
  • 温度与环境:长期在高温(靠近 +125 ℃)下工作会缩短寿命;尽量避免潮湿和腐蚀性气氛,存储时按厂方建议条件保存;
  • 并联与串联:并联可降低等效 ESR 并增加容量,但需注意均流与封装应力;串联使用时必须均压。

六、封装与安装注意

  • 封装 CASE-R-2012-12 适配常见贴片工艺;推荐使用符合行业标准的回流焊工艺,遵循制造商的回流曲线以避免超温损伤;
  • 焊盘设计与应力释放:PCB 焊盘设计应遵循厂商推荐图样,避免对器件施加机械应力(如在焊接后对器件施加弯折);
  • 清洗与后处理:钽电容对某些溶剂和残留物敏感,清洗工艺应保证不会引起电极或封装材料腐蚀。

七、与其它电容类型的对比要点

  • 与陶瓷:陶瓷在高频去耦、超低 ESR 方面优于钽,但大容量陶瓷体积大且可能存在压电噪声与电容随电压降低的特性;钽在中低频容量保持性更好;
  • 与铝电解:固体钽比有电解液的铝电解器件具有更好的温度稳定性与更长寿命,但成本和浪涌敏感性需要权衡;
  • 实际电路中常采用“钽+陶瓷”组合,兼顾低频容量与高频响应。

八、采购与标识

  • 品牌:AVX;型号全称 TAJR225K016RNJ;
  • 在选购时注意与供应商确认批次和完整数据表,索取实际 ESR、漏电流、寿命(例如在 85/85 或 125 ℃ 条件下的寿命测试)等详细电气与可靠性数据,以便做更精确的热与电应力评估。

如需,我可以根据您的具体应用(例如目标工作电压、纹波电流、PCB 版面限制、工作温度谱)给出更具体的电容选型建议与并联组合方案。

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