WMSIC Electronic Components

Walsin WR04X54R9FTL

ModelWR04X54R9FTL
Package0402
Brand(Walsin)
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
(Walsin) WR04X54R9FTL
Type
WALSIN
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR04X54R9FTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
54.9Ω
Electronic Component
50
Electronic Component
BM0264484555
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃

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

WR04X54R9FTL 厚膜电阻产品概述

一、产品基本信息

WR04X54R9FTL是华新科(Walsin) 推出的厚膜贴片电阻,采用0402封装(英制尺寸,对应公制1005,即1.0mm×0.5mm),属于小型化表面贴装器件,适配自动化贴装工艺,可满足高密度PCB布局需求,广泛应用于信号调节、分压、限流等电路场景。

二、核心电气参数详解

该产品的关键参数精准覆盖常规精密电路设计需求,具体如下:

  • 阻值:54.9Ω,符合E96系列精密电阻规范(1%精度常用阻值系列),可实现电路阻抗的精准匹配;
  • 精度等级:±1%,在标准工作条件下,阻值偏差控制在目标值的1%以内,适用于对精度要求较高的反馈回路、传感器信号调理等场景;
  • 额定功率:62.5mW(即1/16W),是0402封装电阻的典型功率规格,实际使用需确保电路功耗不超限(如电压/电流乘积≤62.5mW);
  • 最大工作电压:50V,为电阻两端允许施加的最大直流/交流电压,结合功率计算验证(50V²/54.9Ω≈45.5mW<62.5mW),电压与功率限制兼容;
  • 温度系数(TCR):±100ppm/℃,表示温度每变化1℃,阻值变化量约为5.49mΩ,该系数在厚膜电阻中属于中等偏优水平,可降低温变对电路性能的影响;
  • 工作温度范围:-55℃~+155℃,覆盖工业级、消费电子及部分汽车电子的典型环境温度,可在极端温度下稳定工作。

三、关键特性及优势

  1. 小型化封装适配高密度设计:0402封装体积仅1.0mm×0.5mm,大幅节省PCB空间,适配智能手机、智能穿戴等便携设备的紧凑布局;
  2. 厚膜工艺兼顾稳定性与成本:采用厚膜印刷技术,电阻膜层耐脉冲能力优于部分薄膜电阻,且成本更具竞争力,适合中高批量应用;
  3. 宽温区可靠性突出:工作温度范围覆盖-55℃~+155℃,通过高温老化、温度循环等测试,可在车载、工业控制等严苛环境下长期运行;
  4. 精准性能满足细分场景:±1%精度+±100ppm/℃ TCR,可支撑音频电路阻抗匹配、电源反馈回路校准等对精度敏感的设计;
  5. 自动化生产兼容:表面贴装结构适配回流焊、波峰焊工艺,适合大规模自动化组装,降低生产环节成本。

四、典型应用领域

该产品因小体积、精准性及宽温特性,广泛应用于以下场景:

  1. 消费电子:智能手机、平板电脑的信号滤波、分压电路,耳机音频输出阻抗匹配;
  2. 通信设备:基站、路由器的射频信号调理、电源模块限流/分压,满足高密度PCB设计需求;
  3. 工业控制:PLC(可编程逻辑控制器)、传感器接口的信号校准,工业仪器仪表的精密阻抗网络;
  4. 物联网设备:智能传感器节点、智能家居设备的电源管理、信号放大回路,适配小体积要求;
  5. 汽车电子:车载信息娱乐系统、车身控制模块的低功耗电路(需结合具体汽车级认证场景)。

五、可靠性与环境适应性

华新科对该产品进行了多项可靠性验证,核心测试结果如下:

  • 高温存储(+155℃,1000小时):阻值变化率≤±0.5%;
  • 温度循环(-55℃~+155℃,1000次):阻值变化率≤±0.2%;
  • 耐湿测试(85℃/85%RH,1000小时):阻值变化率≤±0.3%;
  • 焊接耐热(回流焊峰值260℃,3次循环):无外观损伤及性能异常。

这些测试确保产品在实际应用中可长期稳定工作,降低电路故障率。

综上,WR04X54R9FTL是一款兼顾小体积、精准性与可靠性的厚膜电阻,可满足多领域电子设备的常规精密电路设计需求。

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