Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
0402WGF2000TCE 是 UNI-ROYAL(厚声)系列的贴片厚膜电阻,阻值 200Ω,精度 ±1%,额定功率 62.5mW,最大工作电压 50V。器件采用 0402 封装(约 1.0mm × 0.5mm),温度系数(TCR)±100ppm/℃,工作温度范围 -55℃ 至 +155℃。该型号以小尺寸、高密度装配能力与良好成本效益,适合空间受限且对精度有较高要求的产品。
示例温漂说明:TCR 为 ±100 ppm/℃,即温度每变化 1℃,阻值变化约 0.01%。例如从 25℃ 上升到 125℃(ΔT=100℃),阻值约变化 1%,与器件的初始 ±1% 公差叠加时,须考虑最坏情况的累计误差。
电热管理提示:0402 尺寸体积小,散热能力受限。常见规范为在室温(或 Ta=70℃)条件下给出额定功率,并随环境温度上升而线性降额直至上限温度。设计时应考虑基板散热、附近器件热源以及实际工作温度以避免过载。
该器件尺寸小,适合高密度 PCB 布局。安装时注意避免对焊盘或电阻本体施加过大机械力,防止裂纹或端接脱落。
0402WGF2000TCE 常见为 SMT 卷带(tape-and-reel)包装,适配自动贴片机使用。具体卷带尺寸、每盘数量及最低订购量请按供应商报价单或数据表确认。若有特殊包装或字符批号要求,可与销售工程师协商。
UNI-ROYAL(厚声)系列产品通过常规环境与电气应力测试,适合商业与工业级应用。推荐在产品设计阶段获取并参照厂方完整数据手册与可靠性报告,以便进行 IPC 或客户特定的认证试验。对关键应用可要求样品进行温升、寿命和热循环等验证试验以确保长期稳定性。
如需更详尽的电气特性曲线、回流焊工艺参数或样品测试报告,我可以协助整理或联系供应渠道获取数据手册。
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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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