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RALEC(旺诠)是国内专注被动元件研发生产的老牌厂商,其RTT022701FTH属于厚膜贴片电阻系列,型号编码中:
该产品采用0402英制封装(公制1005规格,尺寸约1.0mm×0.5mm),定位为小型化、高精度通用型电阻,适配多领域电子设备的集成化设计需求。
RTT022701FTH的参数精准匹配不同场景的核心需求,关键指标如下:
标称阻值2.7kΩ,精度±1%(阻值偏差范围2.673kΩ~2.727kΩ),属于高精度级别,可满足分压电路、信号放大/衰减、传感器信号调理等对阻值一致性要求较高的设计,避免因阻值偏差导致的信号失真或控制逻辑误差。
额定功率62.5mW,最大工作电压50V。实际应用需注意:若电路电压接近50V,需核算电流(I=V/R≈18.5mA),确保功耗(P=I²R≈62.5mW)不超额定值,适配小信号电路、低功耗模块(如智能穿戴、物联网节点)。
温度系数(TCR)±100ppm/℃(每变化1℃,阻值变化±0.01%),结合**-55℃~+155℃宽温范围**,在极端温变环境(如工业现场、车载环境)下,阻值漂移可控,不会因温度波动导致电路性能失效。
工作温度覆盖-55℃至+155℃,远超普通商业级电阻(0℃~70℃)的温域,可适配工业控制、汽车电子等对温变敏感的场景,满足长期可靠运行需求。
0402封装体积仅1.0mm×0.5mm,是贴片电阻中尺寸较小的规格之一,适合高密度PCB布局(如智能手机主板、智能手表、小型通信模块),可有效缩小产品体积,提升集成度。
厚膜电阻通过丝网印刷+高温烧结工艺制成,相比薄膜电阻成本更低,同时具备:
RTT022701FTH的参数特性使其适配多领域设计:
综上,RTT022701FTH是一款兼顾小型化、高精度、宽温适应性的厚膜贴片电阻,可满足消费电子、工业控制、汽车电子等多领域需求,是旺诠针对中高端设备推出的高性价比产品。
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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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