WMSIC Electronic Components

Walsin WR02X43R0FAL

ModelWR02X43R0FAL
Package0201
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
(Walsin) WR02X43R0FAL
Type
WALSIN
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR02X43R0FAL
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.008g
Electronic Component
43Ω
Electronic Component
10
Electronic Component
BM0264729906
Operating Temperature
55℃~+125℃
Operating Voltage
25V
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.

WR02X43R0FAL 厚膜片式电阻产品概述

一、产品基本属性与品牌背景

WR02X43R0FAL是华新科(Walsin) 推出的一款厚膜片式固定电阻,属于该品牌经典片阻系列。华新科作为全球知名被动元件厂商,专注电阻、电容等元件研发生产近50年,产品以稳定性高、一致性好著称,广泛覆盖消费电子、工业控制、通信等领域。

该电阻采用0201封装(英制命名,对应公制尺寸0.60mm×0.30mm),是当前小型化电子设备的主流封装之一,体积小、密度高,可有效节省PCB空间,适配高密度电路设计。

二、核心电气参数详解

核心参数直接决定应用场景,具体如下:

  1. 阻值与精度:标称阻值43Ω,精度±1%——中等偏上精度,无需额外校准即可满足信号分压、限流等常规电路需求。
  2. 功率额定值:50mW(1/20W)——25℃环境下长期稳定工作的最大功率,实际需按温度降额(如125℃时降额至约30mW,参考官方datasheet)。
  3. 最大工作电压:25V——需注意与功率匹配:实际安全电压需同时满足V≤√(P×R)(本产品约1.47V),25V为绝对限制,不可长期超压。
  4. 温度系数(TCR):±100ppm/℃——温度每变1℃,阻值变0.01%(125℃时变1%),满足一般温度环境的稳定性要求。
  5. 工作温度范围:-55℃~+125℃——覆盖工业级宽温,适配严寒/高温极端环境。

三、封装与物理特性

0201封装的物理参数:

  • 尺寸:长0.60±0.05mm,宽0.30±0.05mm,厚约0.23mm(典型值);
  • 引脚间距:约0.20mm,符合IEC 60068封装标准;
  • 工艺:表面贴装(SMD),适配回流焊/波峰焊自动化装配;
  • 环保:符合RoHS 2.0及无卤要求,无铅制程降低焊接缺陷。

四、典型应用场景

结合参数特性,典型应用包括:

  1. 便携消费电子:智能手机、智能手表的音频限流、电源管理模块(低功耗适配电池供电);
  2. 工业控制:传感器信号调理(温度/压力传感器放大滤波)、PLC输入输出接口(宽温满足现场环境);
  3. 通信设备:路由器、基站的射频前端、电源滤波(0201封装适配高密度PCB);
  4. 车载辅助电路:车载信息娱乐系统、胎压监测模块(非关键安全类场景)。

五、性能优势与注意事项

5.1 核心优势

  • 高密度适配:0201封装节省空间,单位PCB可布局更多元件;
  • 宽温稳定:±100ppm/℃ TCR与-55~125℃温区,极端环境下性能可靠;
  • 成本平衡:±1%精度+华新科品质,兼顾性能与批量成本;
  • 工艺兼容:无铅制程适配自动化生产,降低装配成本。

5.2 注意事项

  • 功率降额:温度超25℃时需按datasheet降额(125℃降额至60%);
  • 焊接工艺:回流焊峰值温度≤260℃,焊接时间≤10秒,避免热应力漂移;
  • 存储条件:未开封产品存于1035℃、4060%RH环境,开封后1年内使用;
  • 电压限制:实际工作电压优先以功率降额后的限制(≈1.47V)为准。

六、总结

WR02X43R0FAL是一款高性价比厚膜片式电阻,凭借0201小封装、±1%精度、宽温特性,成为消费电子、工业控制等领域的常用元件。华新科的品质保障使其在批量应用中一致性稳定,适配现代设备小型化需求。实际应用需注意功率降额与焊接工艺,确保长期可靠工作。

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