WMSIC Electronic Components

VISHAY CRCW25121R00FKEG

ModelCRCW25121R00FKEG
Package2512
BrandVISHAY
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
VISHAY CRCW25121R00FKEG
Type
VISHAY
Minimum package
2000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
VISHAY
Electronic Component
CRCW25121R00FKEG
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.082g
Electronic Component
1Ω
Electronic Component
1
Electronic Component
BM0265429555
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

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

VISHAY CRCW25121R00FKEG 厚膜贴片电阻产品概述

一、产品基本识别信息

CRCW25121R00FKEG是VISHAY(威世)旗下CRCW系列厚膜表面贴装电阻的核心型号,型号命名遵循行业通用逻辑:

  • CRCW:VISHAY厚膜贴片电阻系列标识;
  • 2512:封装尺寸代码(对应2.5mm×1.2mm贴片封装);
  • 1R00:标称阻值1Ω(“R”表示小数点位置);
  • F:精度等级标识(对应±1%公差);
  • KEG:生产工艺与包装后缀(含环保、可靠性等级信息)。

该型号为SMD(表面贴装)设计,适配自动化贴装产线,是工业、汽车等领域高精度功率电阻的主流选择。

二、核心电气参数详解

CRCW25121R00FKEG的电气性能针对功率耗散与精度平衡优化,关键参数如下:

  1. 阻值与精度:1Ω±1%,25℃标准环境下阻值偏差≤0.01Ω,满足电流检测、反馈回路等对精度敏感的场景;
  2. 额定功率:1W(25℃环境下),温度升高时需按降额曲线调整(如125℃时功率降至0.5W),确保长期稳定;
  3. 温度系数(TCR):±100ppm/℃,即温度每变1℃,阻值变化0.0001Ω。以工作温区-55℃~+155℃计算,总阻值变化量约0.021Ω(2.1%),结合精度1%,整体偏差可控在3.1%以内;
  4. 工作温度范围:-55℃+155℃,覆盖工业级(-40℃+85℃)与汽车级(-40℃~+125℃)宽温需求,极端环境下性能稳定。

三、封装与物理特性

采用2512贴片封装,符合IPC-J-STD-001标准,物理特性适配高密度PCB设计:

  • 尺寸:2.5mm(长)×1.2mm(宽)×0.5mm(典型高度),低profile设计减少PCB空间占用;
  • 基底材料:96%氧化铝陶瓷,导热性好(热导率~20W/m·K),可快速散发热量,提升功率承载能力;
  • 电阻层:厚膜钌基浆料印刷,激光微调实现高精度,膜层附着力强,抗机械应力;
  • 焊盘设计:矩形焊盘,适配回流焊、波峰焊工艺,焊接可靠性符合MIL-STD-202标准(如耐焊接热测试无脱落)。

四、典型应用场景

CRCW25121R00FKEG凭借精度、功率与宽温特性,广泛应用于以下领域:

  1. 工业控制:电机驱动电路的电流传感(如伺服电机过流保护)、PLC模块的反馈电阻;
  2. 汽车电子:电池管理系统(BMS)的电流监测、车载充电机(OBC)的功率回路电阻、ABS系统的信号调理;
  3. 电源模块:DC-DC转换器的电流检测、AC-DC电源的过流保护电阻、LED驱动电路的限流;
  4. 通信设备:5G基站射频模块的偏置电阻、光纤收发器的功率回路;
  5. 消费电子:高性能笔记本电脑的电源管理、游戏主机的功率滤波。

五、可靠性与环境适应性

VISHAY对该型号进行了严格的可靠性测试,满足行业严苛标准:

  • 环境测试:通过-55℃~+155℃温度循环测试(1000次循环,阻值变化<0.5%)、85℃/85%RH湿热测试(1000小时,阻值变化<1%);
  • 机械测试:抗振动(20Hz~2000Hz,加速度10g,阻值变化<0.2%)、抗冲击(1000g,6ms,无失效);
  • 负载寿命:1W额定功率下,1000小时负载测试(25℃),阻值变化<0.5%,符合AEC-Q200汽车级标准;
  • 环保合规:符合RoHS 2.0、REACH标准,无铅焊接兼容,满足全球市场准入要求。

六、品牌技术优势

作为VISHAY成熟的厚膜电阻系列,CRCW25121R00FKEG依托品牌技术优势,具备以下特点:

  1. 工艺一致性:全球工厂采用统一的厚膜印刷、激光微调工艺,批量产品阻值偏差均匀;
  2. 质量保障:通过ISO 9001、IATF 16949(汽车级)认证,每批产品附带测试报告;
  3. 供应稳定:全球产能布局(欧洲、亚洲、美洲),满足客户长期批量需求;
  4. 技术支持:提供应用设计指导(如功率降额曲线、PCB layout建议),帮助客户优化电路性能。

综上,CRCW25121R00FKEG是一款高精度、高功率、宽温适应的厚膜贴片电阻,可满足工业、汽车、电源等多领域的严苛需求,是可靠性与性价比兼具的选择。

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