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本产品为RALEC(旺诠)推出的0402封装厚膜固定电阻,核心参数清晰适配常规精度电路需求:
厚膜工艺:稳定与成本的平衡
采用金属氧化物厚膜印刷工艺,相比薄膜电阻成本降低30%以上,相比碳膜电阻阻值漂移减少40%;±100ppm/℃的TCR可满足多数常规精度电路(如信号滤波、分压)的温度适应性需求,避免因环境温度变化导致的输出偏差。
小体积:适配高密度集成
0402封装体积仅1.0mm×0.5mm,比0603封装缩小60%,可显著提升消费电子、通信设备的PCB集成度,适配手机、平板等小型化终端的内部电路设计。
宽温域:高可靠性的核心支撑
-55℃+155℃的工作范围覆盖工业现场(-40℃+85℃)及汽车高温区域(如发动机舱周边);额定功率62.5mW远高于实际使用功率(50V下仅约20.8mW),功率余量充足,可降低过载、热应力导致的失效风险。
电压适配:小信号电路的安全选择
50V最大工作电压可覆盖多数传感器、信号调理电路的电压需求(如12V/24V工业电源的分压),避免因电压击穿导致的器件损坏,提升电路稳定性。
消费电子信号调理
手机、平板的传感器(加速度计、环境光传感器)滤波电路,0402封装适配设备小型化,±5%精度满足信号降噪的基本要求。
工业控制低功耗模块
PLC输入输出接口、温度监测模块的分压电路,宽温域特性可稳定应对工业现场的温度波动(如车间昼夜温差)。
汽车电子辅助电路
仪表盘背光控制、胎压监测辅助电路,155℃高温耐受能力可适配汽车发动机舱等高温区域的辅助电路,避免因热失效导致的功能异常。
通信设备射频辅助
基站、路由器的射频前端匹配网络(小功率部分),厚膜电阻的稳定性可保证射频信号的一致性,降低信号反射损耗。
0402封装工艺:自动化生产兼容
表面贴装设计适配回流焊、波峰焊等自动化工艺,焊接兼容性良好;封装采用陶瓷基底,耐温性优于塑料封装,可承受260℃回流焊高温过程。
抗环境干扰:延长使用寿命
旺诠厚膜工艺针对抗硫化、耐湿性能优化,可有效避免高湿度(如沿海地区)、含硫环境(如化工车间)下的阻值漂移,产品平均寿命超10万小时。
RALEC(旺诠)为台湾知名被动元件制造商,专注电阻研发生产30余年,产品通过RoHS 2.0、REACH等国际环保认证,符合欧盟、北美市场准入要求;RTT系列厚膜电阻为其经典产品线,广泛应用于消费电子、工业、汽车等领域,品质得到华为、富士康等客户认可。
本产品以“小体积、宽温域、高性价比”为核心优势,是常规精度电路的可靠选择。
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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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