WMSIC Electronic Components

FH RC-02K4122FT

ModelRC-02K4122FT
Package0402
BrandFH
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
FH RC-02K4122FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K4122FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
41.2kΩ
Electronic Component
10
Electronic Component
BM0263676966
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.

RC-02K4122FT 厚膜贴片电阻产品概述

一、产品基本定位与品牌背景

RC-02K4122FT是国内电子元器件龙头厂商风华(FH) 推出的一款中高精度厚膜贴片电阻,针对小型化、低功耗、宽温适应性的电路场景设计。作为风华常规产品线的核心型号,该产品兼顾成本与性能,广泛适配消费电子、工业控制、汽车电子等领域的高密度PCB布局需求,是替代同类进口型号的高性价比选择。

二、核心电气性能参数

该型号关键电气参数经过严格标定,直接决定其应用场景:

  • 阻值:41.2kΩ(电阻代码“4122”对应41.2×10²Ω,实际阻值偏差控制在±1%以内);
  • 精度:±1%,满足多数中高精度电路(如信号放大、分压网络)的阻值一致性需求;
  • 额定功率:62.5mW,属于低功耗贴片电阻,适配小信号电路(如传感器前端、射频辅助单元);
  • 工作电压:50V(最大连续工作电压),避免瞬时过压(如浪涌)导致电阻击穿;
  • 温度系数(TC):±100ppm/℃,即温度每变化1℃,阻值变化约±0.01%,在-55℃~+155℃范围内保持稳定;
  • 工作温度范围:-55℃+155℃,覆盖工业级(-40℃+85℃)和部分汽车级(-55℃~+125℃)的环境需求。

三、封装与物理特性

RC-02K4122FT采用0402封装(英制尺寸:0.04英寸×0.02英寸,公制约1.0mm×0.5mm),是贴片电阻中尺寸最小的主流封装之一,适配智能手机、可穿戴设备等高密度PCB设计:

  • 工艺特点:采用厚膜工艺制造——通过丝网印刷将电阻浆料涂覆在氧化铝陶瓷基底上,经高温烧结形成电阻层,成本低于薄膜工艺,同时具备优异的稳定性与耐温性;
  • 物理结构:陶瓷基底提升抗冲击、耐湿热性能,电极采用镍/锡镀层,兼容无铅焊接工艺。

四、典型应用场景

结合参数特性,该型号的核心应用场景包括:

  1. 消费电子:智能手机、平板电脑的音频放大电路、触控传感器分压网络、可穿戴设备的电源管理单元;
  2. 工业控制:小型PLC输入输出模块、温度/压力传感器的前置滤波电路、工业物联网终端的信号调理单元;
  3. 汽车电子:车载仪表盘背光控制、胎压监测系统(TPMS)辅助电路、低功耗车身控制器(BCM)模块;
  4. 通信设备:小型基站射频滤波单元、无线路由器功率分配网络、光纤收发器的辅助偏置电路。

五、可靠性与环境适应性

该产品的可靠性符合行业标准,适配恶劣环境:

  • 温度稳定性:-55℃~+155℃范围内,阻值漂移控制在±0.5%以内(长期可靠性测试结果);
  • 环保合规:符合RoHS、REACH等国际环保标准,无铅焊接兼容,适配绿色制造需求;
  • 风华品质保障:产品经过100%出厂测试(阻值、功率、温度系数),并通过高温老化、湿热循环等可靠性验证,故障率低于行业平均水平。

六、选型与使用注意事项

为确保电路可靠性,使用时需注意以下要点:

  1. 功率降额:实际使用功率建议不超过额定功率的80%(即50mW),环境温度高于125℃时需进一步降额至50%(31.25mW);
  2. 电压防护:避免瞬时过压超过50V,可配合TVS管、压敏电阻等防护器件;
  3. 焊接工艺:回流焊峰值温度≤245℃(时间≤10秒),手工焊温度≤350℃(时间≤3秒),避免过热导致电阻性能下降;
  4. 精度匹配:若电路对阻值精度要求高于±1%(如精密测量仪器),需选择薄膜电阻(如0.1%精度),本型号更适合中精度场景。

总结

RC-02K4122FT是一款性价比突出的厚膜贴片电阻,以小封装、中高精度、宽温范围为核心优势,适配多数小型化电子设备的需求。结合风华的品牌保障与成熟工艺,是替代进口同类产品的可靠选择。

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