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.
RTT124701FTP是旺诠(RALEC) 推出的1210封装厚膜贴片电阻,针对中功率、高精度电子电路需求设计,兼具成本优势与环境适应性。核心特征包括:采用厚膜陶瓷工艺、阻值4.7kΩ(±1%高精度)、额定功率500mW、工作电压200V、宽温范围(-55℃~+155℃)及稳定的温度系数(±100ppm/℃),适配自动化贴装与恶劣工况应用。
阻值为4.7kΩ(标识代码4701,对应“47×10¹=4700Ω”),精度达**±1%** —— 远高于普通碳膜电阻的±5%,可满足需要准确分压、限流的场景(如反馈网络、精密衰减),减少电路误差。
温度系数(TCR)为**±100ppm/℃**,即温度每变化1℃,阻值漂移±0.01%。以极限温变为例:155℃(最高工作温度)比25℃(常温)高130℃,总漂移仅±1.3%,宽温下仍能保持稳定性能,适合工业、车载等高低温场景。
采用1210英制封装,对应公制尺寸为3225(长3.2mm±0.2mm,宽2.5mm±0.2mm,厚度≈0.55mm),符合IPC标准,兼容回流焊、波峰焊等自动化贴装工艺,生产效率高。
厚膜电阻通过“陶瓷基底印刷电阻浆料→高温烧结→环氧树脂涂层”工艺制成:
RTT124701FTP因“高精度+中功率+宽温”特性,广泛用于以下领域:
旺诠(RALEC)是台湾老牌被动元件制造商,专注电阻研发30余年,产品通过:
该产品平衡了性能与成本,是中功率高精度电路的高性价比选择。
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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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