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SC0805F0000I4ANRH是信维通信(Sunway)推出的一款0805封装0Ω厚膜贴片电阻,针对低功耗电路、数字系统跳线及简易电流采样等场景优化设计,兼具成本优势与稳定性能,广泛适配工业控制、消费电子、汽车电子等领域。
作为一款厚膜工艺的0Ω贴片电阻,该产品并非严格意义上的“零阻值”,而是通过优化浆料配方实现极低实际阻值(典型值≤50mΩ),核心定位是“低成本、高可靠性的电路连接与微调元件”。其主要替代传统导线跳线,简化PCB布线逻辑,同时兼顾小电流采样、信号匹配等功能,适配自动化SMT生产,满足批量应用需求。
标称阻值为0Ω,精度±1%——这里的精度并非传统电阻的“阻值偏差”,而是指实际微小阻值的相对偏差(如实际阻值30mΩ时,偏差范围为±0.3mΩ),保证电路连接的一致性。
额定功率125mW,属于0805封装的常规功率等级,适用于小电流场景(建议电流≤1A),避免因功率过载导致电阻发热、阻值漂移。
±300ppm/℃——表示每变化1℃,阻值变化百万分之300(如温度升高100℃,实际阻值增加约9μΩ),属于厚膜电阻的中等水平,满足一般环境温度变化下的性能稳定。
-55℃~+155℃——覆盖工业级、汽车级的宽温需求,可承受极端高低温环境(如户外设备、车载系统)。
采用英制0805(公制2012)封装,尺寸为2.0mm×1.2mm×0.5mm(典型值),体积小巧,节省PCB空间,兼容自动化贴装设备,贴装效率高。
以氧化铝陶瓷为基底,通过丝网印刷钌系电阻浆料并烧结成型,相比薄膜电阻成本更低,且机械强度、长期稳定性更优;0Ω设计通过调整浆料浓度与烧结工艺实现极低阻值,避免传统导线的焊接缺陷。
表面覆盖环氧树脂封装层,兼具绝缘性与机械防护性,可抵御焊接热应力、轻微振动及环境湿度影响。
替代PCB上的导线跳线,简化布线(如数字电路中不同电源域的连接、信号路径的跨接),减少焊接点,提高电路可靠性与生产效率。
利用其极低实际阻值,配合运放等电路实现mA级电流检测(如IoT终端的电池电流监控),无需额外高精度采样电阻,降低成本。
在射频电路中作为阻抗匹配的微调元件,或在PCB预留位置作为“调试电阻”(后期可替换为目标阻值,适配电路优化)。
适配可穿戴设备、智能传感器等低功耗产品,125mW功率满足电路连接需求,无额外功耗负担。
通过-55℃~155℃高低温循环测试,以及85℃/85%RH湿热测试(符合IEC 60068标准),长期使用阻值漂移≤0.5%。
可承受振动(10~2000Hz,加速度2g)与冲击(1000g,0.1ms)测试,适配车载、工业等振动环境。
符合RoHS 2.0、REACH等环保标准,无铅封装,适配全球市场应用。
实际使用时需注意:最大电流≤√(P/R)(R取实际微小阻值,如30mΩ时,I≤2A),建议留50%余量(≤1A),避免过热。
采用回流焊(峰值温度240~260℃,时间≤10s)或波峰焊,避免手工焊接温度过高(>300℃)损坏电阻。
存储温度-40~85℃,湿度≤60%,开封后建议1个月内使用,防止受潮影响性能。
综上,SC0805F0000I4ANRH以高性价比、稳定性能及宽温适应性,成为电路连接、小电流采样等场景的优选元件,适配多领域量产需求。
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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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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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