WMSIC Electronic Components

FH RC-02K18R0FT

ModelRC-02K18R0FT
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-02K18R0FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K18R0FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
18Ω
Electronic Component
10
Electronic Component
BM0264865146
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-02K18R0FT 厚膜贴片电阻产品概述

RC-02K18R0FT是风华(FH)品牌推出的0402封装厚膜贴片电阻,专为高密度、小型化电子电路设计,兼顾精度、稳定性与成本优势,广泛适配消费电子、工业控制等多领域应用。

一、产品基本信息

该电阻属于风华厚膜贴片电阻系列,采用丝网印刷+高温烧结工艺制造,具备批量生产一致性好、成本可控的特点。型号各部分含义清晰:

  • "RC":风华厚膜贴片电阻系列标识;
  • "02":对应英制封装尺寸0402(公制1005,实际尺寸1.0mm×0.5mm);
  • "K":精度等级±1%;
  • "18R0":标称阻值18Ω(小数点后一位);
  • "FT":风华标准工艺与封装尾缀。

作为小型化电阻,其体积仅为传统直插电阻的1/10左右,可有效压缩PCB布局空间,提升电路集成度。

二、核心参数详解

1. 阻值与精度

标称阻值18Ω,精度±1%,实际阻值范围为17.82Ω~18.18Ω,满足大多数电路对阻值偏差的要求(如电源限流、信号分压等场景)。

2. 功率与电压约束

  • 额定功率62.5mW(0.0625W),为0402封装厚膜电阻的常规功率等级;
  • 额定工作电压50V,但需注意功率与电压的核心约束:实际使用中,电压上限需满足公式( U_{max} = \sqrt{P_{额定} \times R} \approx 1.06V )(电流上限( I_{max} \approx 59mA ))。若电压超过此值,需按功率降额使用(建议实际功率不超过额定的80%,即50mW)。

3. 温度特性

温度系数(TCR)±100ppm/℃,表示温度每变化1℃,阻值变化±0.0018Ω(100℃变化时,阻值变化±0.18Ω),稳定性满足一般工业与消费电子的温度环境需求。

4. 工作温度范围

-55℃~+155℃,覆盖工业级环境温度标准,可适应低温(如寒冷地区户外设备)与高温(如设备内部散热区域)工况。

三、工艺与设计特点

  1. 厚膜工艺优势:通过在氧化铝陶瓷基板上印刷电阻浆料并高温烧结而成,相比薄膜电阻成本更低,相比直插电阻体积更小;厚膜层与基板结合牢固,抗机械应力能力较强。
  2. 0402封装适配性:完美适配SMT自动化生产,回流焊兼容性符合J-STD-020标准,可与其他0402封装元器件协同布局,提升PCB密度。
  3. 端电极可靠性:端电极采用镍/铜/锡三层结构,焊接附着力强,可有效避免虚焊、脱焊问题,满足长期使用需求。

四、典型应用场景

该电阻因体积小、精度稳定、成本可控,广泛应用于以下场景:

  1. 消费电子:智能手机、平板电脑的电源滤波电路(如电池充放电限流)、音频电路的信号分压;
  2. 可穿戴设备:智能手环、手表的传感器信号调理(如心率传感器偏置电阻);
  3. 工业控制:小型PLC的输入输出接口、电机驱动电路的限流电阻;
  4. 通信设备:小型基站、路由器的射频前端辅助电阻(如滤波器匹配);
  5. 汽车电子:低压辅助电路(如仪表盘背光控制、传感器信号处理,需确认具体汽车级认证需求)。

五、可靠性与使用注意事项

  1. 降额使用建议:实际功率建议不超过额定的80%(50mW),可显著延长使用寿命(一般降额后寿命可达10万小时以上);
  2. 环境适应性:抗湿度能力符合IEC 60068-2-67标准,可在85℃/85%RH环境下稳定工作1000小时;
  3. 机械应力:避免在振动剧烈的环境下长期使用(若需高振动环境,可采用加固焊接);
  4. 选型替换:若需更高精度(±0.1%)、更低温系(±50ppm/℃)或更大功率(100mW),可选择同封装薄膜电阻或0603封装电阻(如风华RC-03K18R0FT)。

六、总结

RC-02K18R0FT作为风华品牌的高性价比厚膜贴片电阻,以0402封装的小型化优势、±1%的精度、宽温度范围等特点,成为消费电子、工业控制等领域的常用选择。其成本可控、工艺成熟,适合批量生产需求,是小型化电路设计中平衡性能与成本的理想方案。

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