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FRC0402F4702TS是富捷电子(FOJAN)推出的0402封装高精度贴片厚膜电阻,专为小型化、低功耗、工业级可靠性的电子设计场景打造。核心参数聚焦“高集成度适配+稳定性能输出”,以47kΩ阻值、±1%精度、62.5mW额定功率为核心,覆盖从消费电子到工业控制的多类应用需求,是高密度PCB设计的优选基础元件。
产品标称阻值为47kΩ(代码标识“4702”),精度等级达**±1%**,满足大多数信号调理、分压/限流电路的精度要求。该精度在厚膜电阻中属于中高精度范畴,可替代部分低要求的薄膜电阻,兼顾成本与性能。
额定功率为62.5mW(0.0625W),符合0402封装厚膜电阻的典型功率规格;最大工作电压为50V,经计算((P=U^2/R)),50V下实际功耗约53mW,低于额定功率,电压裕量充足,可避免因过压导致的膜层烧蚀风险。
温度系数为**±100ppm/℃**,表示阻值随温度变化的速率:每升高1℃,阻值最大变化0.01%。在全工作温度范围内(-55℃~+155℃),最大阻值变化量约2.1%,结合±1%精度,总阻值偏差可控在±3.1%以内,满足工业级环境下的稳定输出需求。
覆盖**-55℃+155℃**,远超普通商业级(0℃+70℃)与工业级I级(-40℃~+125℃)标准,可适配极端环境(如高温工业设备、低温户外传感器),无需额外降额设计。
采用英制0402封装(公制1005),尺寸仅为1.0mm×0.5mm×0.5mm,是贴片电阻中最小规格之一,可显著降低PCB面积占用,适合智能手机、可穿戴设备、小型传感器模块等对集成度要求极高的场景。
基于厚膜印刷工艺制造:以陶瓷基底为载体,通过丝网印刷电阻浆料、烧结固化形成电阻膜层,兼具“成本低于薄膜电阻、稳定性优于碳膜/金属膜电阻”的优势,膜层附着牢固,抗机械应力(如焊接热应力、振动)能力强,批量一致性好。
智能手机/手表的传感器信号调理电路(如压力传感器分压、加速度传感器限流);无线耳机的低功耗射频匹配电路;便携式设备的电源分压反馈网络。
小型PLC的输入/输出信号调理模块;工业传感器(如温度、湿度传感器)的信号放大偏置电路;智能电表的计量分压电路。
智能家居节点(如温湿度传感器)的信号处理电路;低功耗蓝牙(BLE)设备的天线匹配网络;智能穿戴设备的健康监测模块。
产品通过潮湿、温度循环、振动等可靠性测试:潮湿环境下(85℃/85%RH)阻值变化率<1%;温度循环(-55℃+155℃,1000次)后性能无衰减;振动测试(102000Hz,1g)后焊接点无脱落,满足工业级应用的长期可靠性要求。
富捷电子(FOJAN)作为国内贴片电阻专业制造商,产品通过ISO9001质量管理体系认证,批次一致性好(阻值偏差离散性<0.5%),可降低客户量产时的电路调试成本,适合大规模批量采购。
该产品以“小尺寸+高精度+宽温区”为核心竞争力,可满足多领域电子设备的基础电阻需求,是批量生产中兼顾性能与成本的可靠选择。
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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.
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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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