WMSIC Electronic Components

TA-I RMS04FT6801

ModelRMS04FT6801
Package0402
BrandElectronic Component
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
RMS04FT6801
Type
TA-I Technology
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RMS04FT6801
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
6.8kΩ
Electronic Component
10
Electronic Component
BM0264548244
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

RMS04FT6801 厚膜贴片电阻产品概述

一、产品基本定位

RMS04FT6801是大毅科技推出的一款0402封装厚膜贴片电阻,核心定位为「小体积、高精度、宽温稳定型通用电阻」,适配高密度PCB设计、工业级环境及低功耗电路需求,广泛覆盖消费电子、通信、工业控制等领域。

二、关键性能参数解析

该电阻的核心参数围绕「阻值精度、功率容量、温度适应性」三大维度设计,具体如下:

2.1 阻值与精度

标称阻值6.8kΩ(编码逻辑:前三位680 + 第四位1×10¹),精度±1%——满足信号分压、反馈网络等多数电路的误差要求,无需额外校准即可实现稳定输出;若需更高精度(如±0.1%),可作为基础选型参考。

2.2 功率与电压容量

  • 额定功率62.5mW(0.0625W),适配低功耗电路(如MCU、传感器偏置);
  • 最大工作电压50V,结合功率公式(P=V^2/R)计算:50V下实际功耗≈36.8mW(远低于额定值),可长期可靠工作,无需担心过热失效。

2.3 温度特性

  • 温度系数(TCR)±100ppm/℃:环境温度每变化1℃,阻值漂移±0.01%;
  • 工作温度范围-55℃~+155℃:极端温差下(210℃)阻值最大漂移量仅1.36Ω(6.8kΩ×0.01%×210),漂移可控,适合工业级场景。

2.4 封装与尺寸

采用0402英制封装(公制1005,尺寸1.0mm×0.5mm×0.45mm),是当前贴片电阻最小规格之一,可有效降低PCB布局面积,适配智能手机、智能穿戴等小型化设备。

三、工艺与可靠性设计

该电阻基于厚膜陶瓷基片工艺制造,核心优势体现在:

3.1 长期稳定性

电阻浆料通过丝网印刷于氧化铝基片,经1000℃以上高温烧结成型,阻值长期漂移率≤0.1%/1000小时,远优于碳膜电阻。

3.2 抗环境干扰

表面采用玻璃釉涂层封装,具备抗硫化、抗潮湿性能,可应对工业环境中的腐蚀性气体(如H₂S)和高湿度场景。

3.3 焊接兼容性

电极采用镍/金镀层,符合RoHS 2.0标准,适配回流焊、波峰焊等主流工艺,焊接后无虚焊、脱落问题。

四、典型应用场景

RMS04FT6801的参数特性使其适配以下场景:

4.1 消费电子

智能手机、智能手表的音频信号调理(如耳机接口分压、麦克风偏置),利用小体积实现紧凑布局。

4.2 工业控制

传感器信号放大电路(如温度/压力传感器反馈网络),宽温范围与低漂移特性确保信号精度稳定。

4.3 通信设备

射频前端直流偏置电路(如PA模块偏置),6.8kΩ阻值与±1%精度匹配低功耗射频需求。

4.4 物联网设备

低功耗MCU的上拉/下拉电阻(如I2C总线),62.5mW额定功率满足低功耗电路的功率余量要求。

五、应用注意事项

为确保长期可靠性,需注意:

5.1 功率降额

实际工作功率建议≤额定值的70%(即≤43.75mW),可将寿命从1000小时提升至数万小时。

5.2 温度管理

若环境温度>125℃,需优化PCB铜箔面积(如增加散热焊盘),避免阻值漂移加剧。

5.3 焊接工艺

0402封装需控制回流焊温度峰值≤245℃,焊接时间≤30秒,防止基片开裂。

六、品牌与品质保障

大毅科技拥有30+年厚膜电阻生产经验,RMS04FT6801通过:

  • IEC 60115-1国际标准认证;
  • 批次阻值一致性误差≤0.5%(优于行业平均);
  • 100%出厂测试,确保每颗电阻参数合规。

该产品以「小体积+高稳定」为核心竞争力,是高密度电路设计的优选通用电阻。

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