WMSIC Electronic Components

FH RC-02K4642FT

ModelRC-02K4642FT
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
FH RC-02K4642FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K4642FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
46.4kΩ
Electronic Component
50
Electronic Component
BM0264554814
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.

风华RC-02K4642FT厚膜贴片电阻产品概述

一、产品基本定位与封装特征

RC-02K4642FT是风华高科(FH品牌)推出的0402封装厚膜贴片电阻,属于通用型高精度电阻系列。其中:

  • “RC”标识厚膜贴片电阻工艺;
  • “02”对应0402英寸封装(公制约1.0mm×0.5mm),适配高密度电路布局;
  • “K4642”为阻值编码(前三位464为有效数字,第四位2为倍率10²,即464×10²=46.4kΩ);
  • “FT”标注核心性能(±1%精度、1/16W功率)。

该产品主打“小体积+高一致性”,满足消费电子、工业控制等领域的量产化需求。

二、核心性能参数深度解析

2.1 阻值与精度

阻值46.4kΩ,精度±1%——属于工业级通用高精度等级,比普通5%精度电阻更稳定,可避免因阻值偏差导致的信号调理、分压电路输出误差,适配对阻值准确性有要求的场景。

2.2 功率与电压

  • 额定功率62.5mW(1/16W):是0402封装的主流功率规格,支撑手机主板音频滤波、传感器信号放大等小功率电路;
  • 最大工作电压50V:需严格控制电路电压不超此值,否则可能导致电阻膜击穿或绝缘层损坏。

2.3 温度特性与环境适应性

  • 温度系数(TCR)±100ppm/℃:温度每变化1℃,阻值变化约±4.64Ω(46.4kΩ×100×10⁻⁶),满足宽温范围的稳定性;
  • 工作温度-55℃~+155℃:覆盖工业级标准,比消费级(0℃~70℃)更宽,适配汽车电子、户外物联网终端等极端环境。

三、典型应用场景

因小体积、宽温、高精度的特性,该产品广泛用于:

  1. 消费电子:手机、平板的信号滤波、分压电路(0402封装适配主板高密度布局);
  2. 汽车电子:车载胎压监测、温度传感器的信号调理(宽温适配舱内-40℃~85℃变化);
  3. 工业控制:小型PLC、物联网终端的输入输出模块(1%精度满足控制信号准确性);
  4. 通信设备:基站小型化模块的限流、匹配电路(厚膜工艺抗脉冲能力优于薄膜电阻)。

四、工艺与品牌优势

4.1 厚膜电阻工艺特点

采用丝网印刷+高温烧结工艺:将电阻浆料印刷在陶瓷基底上,烧结形成致密电阻膜,具备:

  • 阻值范围宽(几欧至几兆欧),适配多场景;
  • 抗脉冲能力强,可承受短时间过压/过流冲击;
  • 成本低于薄膜电阻,适合大规模量产。

4.2 风华品牌可靠性

FH风华是国内电阻行业龙头,产品通过ISO9001、IATF16949(汽车电子)认证,批量阻值偏差控制在±1%以内,焊接兼容性强(支持回流焊、波峰焊,符合IPC-J-STD-020标准)。

五、选型与使用注意事项

为确保长期可靠,需注意:

  1. 功率降额:实际功率不超额定功率的80%(≤50mW),避免阻值漂移;
  2. 电压限制:电路电压≤50V,超压需串联电阻或换高压规格;
  3. 焊接规范:回流焊峰值温度≤260℃(持续≤10秒),波峰焊≤245℃(持续≤5秒);
  4. 环境适配:确认温度在-55℃~155℃内,超温需降额或换高温电阻;
  5. 精度匹配:若需±0.1%精度,需选薄膜电阻,本产品1%适配通用场景。

六、总结

风华RC-02K4642FT平衡了小体积、高精度、宽温特性,是消费电子、汽车电子等领域小功率电路的高性价比选择。其厚膜工艺的可靠性与风华品牌的一致性,适合批量量产需求。

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