WMSIC Electronic Components

AVX TAJB685K025RNJ

ModelTAJB685K025RNJ
PackageCASE-B-3528-21(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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
AVX TAJB685K025RNJ
Type
AVX
Unit
Electronic Component
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
AVX
Electronic Component
TAJB685K025RNJ
Electronic Component
1
Electronic Component
6.8uF
Package
CASE-B-3528-21(mm)
Electronic Component
Capacitor
Electronic Component
±10%
Electronic Component
0.1g
Electronic Component
1
Electronic Component
BM0249824470
Operating Temperature
55℃~+125℃
Voltage
25V
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.

TAJB685K025RNJ 产品概述

一、产品简介

TAJB685K025RNJ 为 AVX 出品的钽固体电容器,额定电容 6.8 µF,标称精度 ±10%,额定电压 25 V。该器件以钽材料为介质,体积小、容量密度高,适用于空间受限但要求较大电容值与稳定性能的电子电路中。工作温度范围宽 (-55 ℃ ~ +125 ℃),适应工业级环境要求。

二、主要参数

  • 电容值:6.8 µF
  • 容差:±10%
  • 额定电压:25 V
  • 等效串联电阻 (ESR):2.8 Ω @ 100 kHz
  • 工作温度:-55 ℃ ~ +125 ℃
  • 品牌:AVX
  • 封装:CASE-B (3528 / 3.5 × 2.8 mm 尺寸序列)
  • 型号:TAJB685K025RNJ

三、性能与优势

  • 高容值/小体积:在 3528 类封装中提供 6.8 µF 的电容,便于在密集布板场合使用。
  • 宽温度稳定性:在 -55 ℃ 到 +125 ℃ 范围内保持较佳的电气特性,适合工业级温度循环。
  • 频率特性:ESR 在 100 kHz 下为 2.8 Ω,适合滤波与去耦应用,能承受中等频率的纹波。
  • 长期稳定性:钽固体电容具有良好的容量稳定性与可靠的温度系数,适合对时基、去耦敏感的应用场景。

四、典型应用

  • 开关电源输入/输出滤波与去耦(DC-DC、LDO 旁路)
  • 放大器和音频电路的耦合/旁路
  • 工业控制设备、仪器仪表电源滤波
  • 空间受限的便携设备与通信模块电源去耦

五、封装与机械信息

  • 封装形式:CASE-B,常见俗称 3528 封装,外形尺寸约 3.5 mm × 2.8 mm(具体尺寸请参考 AVX 官方封装图纸)。
  • 焊盘与 PCB 推荐:建议采用厂家推荐的焊盘尺寸与锡膏印刷参数,以保证焊接强度与热循环可靠性。

六、设计与装配要点

  • 回流焊工艺:按 AVX 推荐的回流焊温度曲线和时长进行焊接,避免过高峰值温度或过长加热时间导致电性能退化。
  • 电压与温度降额:为提高可靠性,建议在实际应用中对电压和环境应力进行适当降额(常见做法为在额定电压下留有裕量),以减少因浪涌电流或过热引发的失效风险。
  • 纹波与冲击电流:钽电容对浪涌与脉冲电流敏感,设计时应评估纹波电流与启动冲击,必要时并联低 ESR 的电容或增加限流保护。
  • 机械应力避免:在元件焊接后避免在引脚或封装上施加过大机械应力,以免引起内裂或焊点开裂。

七、采购与替代型号

  • 订货请以完整料号 TAJB685K025RNJ 向 AVX 或授权经销商确认库存与交期,并核对最新数据手册。
  • 若需替代,可在同规格(6.8 µF、25 V、相近 ESR、相同封装)的钽固体或固体聚合物钽电容中筛选,常见替代厂商包括 KEMET、Vishay 等,但更换前应对 ESR、耐纹波、温度特性及可靠性进行对比验证。

八、可靠性与注意事项

  • 钽固体电容具有良好长期稳定性,但在极端浪涌、反向偏压或不当焊接情况下存在失效率上升的风险。
  • 推荐在设计阶段进行老化、热循环与振动测试,确保在目标应用环境下的可靠性满足要求。
  • 储存建议:干燥、常温环境,避免长时间高温潮湿与强腐蚀性气体。

如需进一步的电气图、封装图或回流焊曲线,请提供是否需要我帮您检索 AVX 官方数据手册或具体的 PCB 设计建议。

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.