WMSIC Electronic Components

Walsin WR04X4641FTL

ModelWR04X4641FTL
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
(Walsin) WR04X4641FTL
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
WR04X4641FTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
4.64kΩ
Electronic Component
10
Electronic Component
BM0229212868
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.

华新科WR04X4641FTL厚膜电阻产品概述

一、产品基本定位与家族归属

华新科(Walsin)作为国内被动元器件领域的主流厂商,WR04X4641FTL属于其厚膜电阻系列的经典型号,主打「小功率、高精度、宽温适配」三大核心特性。该系列以紧凑封装(常规为0402贴片封装,适配自动化生产)为核心,主要面向消费电子、工业控制等对成本敏感且性能稳定的场景。

型号编码中:「WR04X」代表系列与封装特征(X通常对应0402封装),「4641」为阻值编码(464×10¹=4.64kΩ),「FTL」明确了±1%的精度等级,整体设计精准匹配小功率电路的阻值需求。

二、核心性能参数详解

这款电阻的参数设计针对性强,可覆盖多数小功率高精度场景:

  1. 阻值与精度:额定阻值4.64kΩ,精度±1%——批量应用中无需额外校准,适合信号分压、传感器调理等对阻值准确性要求较高的环节;
  2. 功率与电压:额定功率1/16W(62.5mW),最大工作电压50V——小功率适配便携式设备(如手机、智能手环)的低功耗电路,电压额定值可覆盖常见直流/低频交流信号;
  3. 温度系数(TCR):±100ppm/℃——温度变化时阻值漂移极小,例如在-55℃~155℃的宽温范围内,阻值最大偏差仅约±0.0928%(按210℃温差计算),极端环境下性能稳定;
  4. 工作温区:-55℃~+155℃——覆盖工业级、汽车级常规温区,可满足车载、户外监测等严苛场景需求。

三、典型应用场景梳理

结合参数特点,WR04X4641FTL的核心应用集中在以下领域:

  1. 消费电子终端:手机/平板的传感器信号调理(加速度计、陀螺仪分压网络)、电源滤波(小功率去耦);
  2. 工业控制模块:PLC模拟量输入输出调理、小型电机驱动限流(低功率场景);
  3. 汽车电子配件:车载中控按键感应、胎压监测信号处理(宽温适配舱内外环境);
  4. 医疗小型设备:家用血糖仪、血压计的信号放大(精度稳定减少测量误差);
  5. 通信辅助电路:路由器/交换机的电源指示灯限流、射频前端小功率匹配(低频段应用)。

四、可靠性与工艺优势

作为厚膜电阻,其工艺与可靠性具备实用价值:

  1. 厚膜工艺:采用丝网印刷+烧结工艺,电阻膜层附着力强,耐磨损、抗冲击,适合批量贴片生产,不良率低;
  2. 长期稳定性:经过老化测试,长期使用阻值漂移≤0.1%/1000小时,可降低设备后期维护成本;
  3. 环境适应性:符合IEC 60068等标准,抗湿度、抗粉尘,能应对工业现场的复杂环境;
  4. 成本控制:相比薄膜电阻,厚膜工艺成本更低,适合中低端至中端市场的性价比需求。

五、使用与选型注意事项

为保证性能稳定,需注意以下细节:

  1. 功率降额:实际功率建议不超过额定值的70%(43.75mW),避免长期过载导致阻值漂移;
  2. 电压限制:电路最大施加电压不得超过50V(直流/交流均适用);
  3. 焊接规范:遵循华新科推荐参数(回流焊峰值260℃±5℃,持续≤10秒;波峰焊245℃±5℃,持续≤5秒),避免高温损坏膜层;
  4. 静电防护:ESD敏感元件,操作时需接地、佩戴防静电手环;
  5. 存储条件:未开封产品存于15℃35℃、湿度40%60%环境,开封后12个月内使用完毕。

华新科WR04X4641FTL凭借「高精度+宽温+小功率」的组合优势,成为众多电子电路的高性价比选型,尤其适合对成本敏感且性能稳定有要求的应用场景。

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