Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CGA0603X7R681K500JT(品牌:HRE/芯声)为0603封装多层陶瓷电容器,标称容量680pF(代码681),精度±10%(K),额定电压50V,介质材料为X7R。属于通用型片式电容,体积小、性能稳定、适合表面贴装生产。
0603小尺寸设计,适合高密度贴片电路。尺寸小带来布板空间优势,同时在自动贴片与回流焊工艺下具有良好贴装一致性。常见包装为卷带(Tape & Reel),便于SMT自动化生产。
X7R为二类介质,具有较好的体积电容比和中等温度特性,适合去耦、滤波等用途。与C0G/NP0相比,X7R在温度、电压下的容量变化更大;在较高直流偏置下(靠近额定电压)电容会明显下降,应参考厂商的Bias曲线做设计余量。MLCC本体呈低ESR、低ESL特性,适合高频信号处理和去耦应用。
推荐采用标准回流焊工艺,遵循JEDEC温度曲线;使用前做好干燥烘烤处理以防吸湿(视MSL等级)。焊接后避免强烈机械应力、避免在高温高湿长期工作环境下超出介质规格,厂商常提供可靠性试验数据(焊接热冲击、湿热和寿命测试),建议批量采购前确认QA报告。
功能等效可参考其他厂家同规格0603 X7R 680pF ±10% 50V型号,但不同厂商在Bias曲线、ESL/ESR与可靠性测试上有差异,实际替换前建议对照数据手册并进行样机验证。
常见包装形式为卷带(5000/10000粒/卷随厂商而定),订购时请确认完整料号(含封装、容值、精度、电压和包装后缀)及可追溯的质量文件,以保证生产一致性与可追踪性。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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