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.
1206W4J0330T5E 是 UNI-ROYAL(厚声)系列的一款厚膜贴片电阻,封装为 1206(公制 3216),标称阻值 33Ω,精度 ±5%,额定功率 1/4W(250mW),温度系数(TCR)±100ppm/℃,工作温度范围 -55℃ ~ +155℃。此型号为通用型表面贴装电阻,适用于批量 SMT 贴装与自动化生产。
注:器件额定工作电压 200V 表示器件在规定环境下的耐压能力,但在实际电路中需同时考虑功率限制。基于额定功率计算的最大允许电压与电流为:Vmax = sqrt(P·R) ≈ √(0.25×33) ≈ 2.87V;Imax = sqrt(P/R) ≈ 0.087A(约 87mA)。超过此电压/电流会导致功率过载而损坏器件。
该型号常用于 SMT 大批量贴片,建议以卷带(tape-and-reel)形式采购以提高贴装效率。采购时请向供应商确认包装规格、出货检验报告(RoHS/物料证书)及完整数据手册,以便获取详细的机械图、温度功率降额曲线和焊接规范。
如需更详细的电气特性、可靠性试验数据或定制化要求,建议直接咨询 UNI-ROYAL(厚声)或其授权分销商获取官方资料与技术支持。
Request for quote
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.
Related products