WMSIC Electronic Components

Sunway SC0805F4701F4ANRH

ModelSC0805F4701F4ANRH
Package0805
BrandSUNWAY
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunway SC0805F4701F4ANRH
Type
SUNWAY
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
SUNWAY
Electronic Component
SC0805F4701F4ANRH
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.028g
Electronic Component
4.7kΩ
Electronic Component
1
Electronic Component
BM0266065751
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SC0805F4701F4ANRH 贴片厚膜电阻产品概述

一、产品核心定位与典型应用场景

SC0805F4701F4ANRH是信维通信(Sunway)推出的0805封装通用型厚膜贴片电阻,针对对阻值精度、温度稳定性有中等要求的电路设计,平衡了性能与成本,广泛适配多领域电子设备:

  • 消费电子:智能手机/平板电脑的音频信号调理、电池管理电路(BMS)分压模块;
  • 智能家居:温湿度传感器、智能门锁的模拟信号滤波;
  • 工业控制:PLC输入输出模块的限流电阻、小型电机驱动电路的分压;
  • 汽车电子:后视镜调节、车窗控制的辅助电路(适配-55℃~155℃宽温需求)。

二、关键技术参数详解

该电阻核心参数覆盖中等精度与宽温场景的核心需求,具体如下:

1. 阻值与精度

阻值为4.7kΩ(代码“4701”,即47×10¹Ω),精度为**±1%**——比普通±5%贴片电阻更适合需要准确分压、信号放大的电路(如音频前置放大、ADC参考电压调节)。

2. 功率与电压限制

  • 额定功率:125mW(25℃环境温度下);
  • 最大工作电压:150V;
  • 实际使用需注意降额:当环境温度超过70℃时,功率需按曲线降额(如125℃时功率降额至约60mW),避免过热导致阻值漂移或损坏。

3. 温度系数与工作范围

  • 温度系数(TCR):±100ppm/℃——即温度每变化1℃,阻值变化±0.01%;在全温区(-55℃~155℃)内,阻值最大变化约±2.1%(210℃温差×100ppm),满足工业/汽车旁通场景的宽温稳定性要求;
  • 工作温度:-55℃~+155℃,覆盖工业级(-4085℃)与部分汽车级(-40125℃)的温度需求。

三、封装与工艺特性

1. 封装尺寸

采用0805英制封装(对应公制2012),尺寸约为2.0mm×1.2mm×0.5mm,适合高密度PCB布局(如智能手机主板、小型传感器模块),比1206封装节省约40%的空间。

2. 厚膜工艺优势

该电阻采用氧化铝陶瓷基片+厚膜电阻浆料工艺:

  • 丝网印刷电阻浆料后高温烧结,形成致密电阻层,稳定性优于碳膜贴片电阻;
  • 电极采用银钯(Ag-Pd)合金,表面无铅镀层(符合RoHS标准),焊接可靠性高,长期使用无氧化脱落风险;
  • 成本低于薄膜电阻,适合批量应用。

四、可靠性与环境适应性

信维通信对该电阻进行了多维度可靠性验证,符合行业标准:

  • 高温存储:155℃×1000h后,阻值变化≤±0.3%,功率特性无衰减;
  • 温度循环:-55℃~155℃×1000次循环后,无开裂、阻值漂移(变化≤±0.5%);
  • 振动/冲击:满足IEC 60068-2-6(振动:10~2000Hz,1g加速度)与IEC 60068-2-27(冲击:15g,11ms)测试,适合运输、工业现场等振动环境;
  • 耐湿:85℃/85%RH×1000h后,阻值变化≤±0.2%,电极无腐蚀。

五、选型与使用注意事项

1. 降额使用原则

  • 环境温度>70℃时,功率降额公式:( P_{实际} = P_{额定} × (1 - 0.005×(T-70)) )(T为环境温度);
  • 电压限制:实际电压需同时满足 ( U ≤ \sqrt{P_{实际}×R} )(避免电压过高导致击穿)。

2. 焊接工艺要求

  • 优先采用回流焊:温度峰值≤260℃,焊接时间≤30s;
  • 手工焊接:烙铁头温度≤350℃,单点焊接时间≤3s,避免过热损坏电阻层;
  • 禁止使用超声波清洗(可能导致电极脱落)。

3. 存储与开封管理

  • 未开封存储:温度-40~30℃,湿度≤60%RH,保质期2年;
  • 开封后:建议1年内使用完毕,未使用的电阻需密封存储,避免电极氧化。

总结

SC0805F4701F4ANRH是一款性价比突出的通用型贴片电阻,以±1%精度、±100ppm/℃温漂、宽温工作范围适配多领域中等要求的电路设计,尤其适合消费电子、工业控制等对成本敏感但需稳定性能的场景,是PCB布局紧凑化的可靠选择。

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