WMSIC Electronic Components

FH RC-02K4703FT

ModelRC-02K4703FT
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-02K4703FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K4703FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
470kΩ
Electronic Component
10
Electronic Component
BM0263547917
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FH RC-02K4703FT 厚膜贴片电阻产品概述

一、产品核心身份与定位

RC-02K4703FT是风华电子(FH)推出的0402封装高精度厚膜贴片电阻,属于其小功率厚膜电阻系列的核心型号。型号命名逻辑清晰:“RC”标识厚膜贴片电阻,“02”对应英制0402封装(公制1005,尺寸1.0mm×0.5mm),“K”代表精度±1%,“4703”为阻值编码(470×10³=470kΩ),“FT”关联风华内部工艺与环保认证。该型号主打小体积、高精度、宽温稳定特性,适配低功耗、高密度电路设计,是消费电子、工业控制等领域的通用型核心器件。

二、关键参数深度解析

该型号的参数设计围绕“低功耗场景的高精度需求”展开,核心参数解析如下:

  • 阻值与精度:470kΩ±1%——1%精度满足绝大多数模拟电路(分压、偏置、信号衰减)的校准需求,无需额外硬件补偿;
  • 功率额定值:62.5mW——0402封装的典型功率等级,适配低电流场景(如50V工作电压下,电流≈0.106mA,远低于功率极限);
  • 工作电压:50V——需注意“电压≠功率”,实际使用需结合温度降额(如125℃环境下,功率需降额至31.25mW);
  • 温度系数:±100ppm/℃——表示温度每变化1℃,阻值变化±0.01%;以25℃为基准,155℃时阻值变化仅±1.3%,仍在精度范围内,宽温稳定性突出;
  • 工作温度范围:-55℃~+155℃——覆盖汽车电子、工业户外设备等极端温变场景,符合AEC-Q200(汽车级)潜在应用要求。

三、工艺特性与可靠性优势

风华作为国内厚膜电阻龙头,RC-02K4703FT采用成熟丝网印刷+高温烧结工艺,兼具成本优势与性能稳定性:

  1. 端电极结构:采用Ni/Sn双层镀层,兼容回流焊、波峰焊工艺,焊接后抗剥离强度≥5N(行业标准≥3N),大幅降低虚焊风险;
  2. 环保合规:符合RoHS 2.0、REACH等国际环保标准,无铅无镉,适配绿色电子产品设计;
  3. 耐环境性能:通过湿热试验(85℃/85%RH,1000h)后阻值变化≤±0.5%,抗硫化试验(H₂S环境)后性能稳定,适合工业恶劣环境;
  4. 一致性管控:自动化生产+全检流程,批量产品阻值分布集中在±0.5%以内,远优于标称精度,批量应用可靠性高。

四、典型应用场景

RC-02K4703FT因“小体积、高精度、宽温”特性,广泛覆盖以下领域:

  • 消费电子:智能手机/平板的射频前端分压电路、摄像头模组偏置电阻、耳机放大器信号衰减;
  • 工业控制:PLC模拟量输入模块的分压网络、小型传感器信号调理电路、电机驱动辅助偏置;
  • 汽车电子:车载中控屏背光控制、胎压监测传感器偏置、车机低功耗唤醒电路(适配-40℃~+85℃车载温宽);
  • 通信设备:5G小基站射频滤波辅助电阻、光纤收发器偏置电路;
  • 医疗设备:便携式血糖监测仪信号放大偏置、小型呼吸机传感器调理电路。

五、选型与使用注意事项

为确保产品可靠性,需注意以下要点:

  1. 功率降额:环境温度超过70℃时,需按“每升高1℃降额0.5%”计算实际功率(如125℃时降额至50%,即31.25mW);
  2. 焊接工艺:回流焊温度曲线需符合JEDEC J-STD-020标准(峰值温度245℃±5℃,时间≤10s),手工焊温度≤350℃,焊接时间≤3s;
  3. 存储条件:未开封产品存储在25℃±5℃、湿度≤60%环境中,开封后建议1个月内用完(避免受潮影响焊接性能);
  4. 替换原则:同封装(0402)、同阻值(470kΩ)、同精度(±1%)、同功率(≥62.5mW)的厚膜电阻可直接替换(如村田MCR01MZPF4703),需确认温宽匹配目标场景。

该型号凭借风华的工艺优势与稳定性能,成为中小功率高精度电路的高性价比选择,适配多领域量产需求。

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