WMSIC Electronic Components

FH RC-02K3402FT

ModelRC-02K3402FT
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-02K3402FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K3402FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
34kΩ
Electronic Component
50
Electronic Component
BM0263676988
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.

RC-02K3402FT 厚膜贴片电阻产品概述

RC-02K3402FT是风华电子(FH)推出的一款小功率高精度厚膜贴片电阻,针对紧凑型电路设计需求优化,兼顾阻值精度、宽温稳定性与空间利用率,广泛适配消费电子、工业控制等多领域应用。

一、产品核心身份与定位

该电阻属于风华厚膜贴片电阻系列,型号命名逻辑清晰:

  • “RC”代表厚膜片式电阻(Resistor Chip);
  • “02K”对应0402封装(英制尺寸编码,公制为1005);
  • “3402”表示阻值34kΩ(前三位340为有效数字,第四位2为倍率10²);
  • “FT”为精度与温度系数标识(±1%精度、±100ppm/℃ TCR)。

其定位为低功耗高精度基础元件,核心解决小型化电路中“阻值准、温漂小、占空间少”的矛盾,是替代传统插件电阻的主流选择。

二、关键电气性能参数

1. 阻值与精度

阻值为34kΩ,精度±1%——满足99%以上工业与消费电子场景的偏差控制要求(如分压电路的比例准确性、信号放大的增益稳定性),无需额外校准即可直接装机。

2. 功率等级

额定功率62.5mW(1/16W),符合0402封装的典型功率上限,适配低功耗电路(如电池供电设备、传感器前端)。实际使用时建议按80%降额(即≤50mW),可有效延长寿命、避免过热。

3. 温度系数(TCR)

温度系数为**±100ppm/℃**,即温度每变化1℃,阻值变化量不超过34kΩ×100×10⁻⁶=3.4Ω。在-55℃~+155℃宽温区内,最大阻值漂移量为3.4Ω×210℃=714Ω,结合±1%精度,实际有效阻值范围仍控制在34kΩ±3.1%内,满足宽温环境下的性能稳定性。

三、环境适应性与可靠性

1. 宽温工作范围

工作温度覆盖**-55℃至+155℃**,远超民用级(0℃~70℃)标准,可适配:

  • 工业现场(户外设备、高温车间);
  • 车载模块(仪表盘、辅助驾驶传感器);
  • 航空航天辅助电路(低温极端环境)。

低温下无阻值突变,高温下功率降额特性符合IEC 60115-1标准。

2. 厚膜工艺优势

采用丝网印刷+高温烧结工艺,电阻膜层与陶瓷基片结合牢固,具备:

  • 耐湿性:通过湿热测试(40℃/93%RH,1000小时),阻值变化率≤0.5%;
  • 抗冲击性:振动测试(10~2000Hz,2g加速度)无断裂、阻值漂移≤0.2%;
  • 耐老化:1000小时加速老化后,阻值变化率≤1%,满足长期可靠性要求。

3. 环保与认证

符合RoHS 2.0、REACH等环保标准,无铅无镉;部分批次通过AEC-Q200(汽车电子级)认证,可直接用于车规级应用。

四、封装与物理特性

1. 封装规格

采用0402封装(英制:0.04″×0.02″;公制:1.0mm×0.5mm),是目前最小的贴片电阻封装之一,适配高密度PCB设计(如智能手机主板、小型通信模块),单块PCB可集成数千个该电阻,有效节省空间。

2. 封装材料

  • 基片:氧化铝陶瓷(Al₂O₃),热导率适中(15~20W/m·K),绝缘性强;
  • 电极:镍-锡镀层(Ni/Sn),焊接兼容性强,支持回流焊、波峰焊;
  • 焊盘:标准0402焊盘设计,焊接后附着力≥10N(拉力测试),不易虚焊。

3. 物理尺寸(典型值)

  • 长度:1.00±0.10mm;
  • 宽度:0.50±0.10mm;
  • 高度:0.35±0.10mm;
  • 焊盘间距:0.60±0.10mm。

五、典型应用场景

1. 消费电子

  • 智能手机/平板:电源管理电路(分压、限流)、音频滤波电路;
  • 可穿戴设备:心率传感器、计步器的信号调理电阻;
  • 智能家居:温湿度传感器接口的上拉电阻。

2. 工业控制

  • 小型PLC:输入输出接口的下拉电阻;
  • 传感器模块:压力、温度传感器的放大偏置电阻;
  • 工业物联网网关:射频前端的匹配电阻。

3. 汽车电子

  • 车载仪表盘:背光控制电路的分压电阻;
  • 辅助驾驶:毫米波雷达的信号调理电阻;
  • 车载充电器:过流保护电路的采样电阻。

六、品牌与品质背书

风华电子(FH)是国内电子元器件龙头企业,拥有30余年厚膜电阻研发生产经验,产能覆盖全球,产品通过ISO 9001、ISO 14001等体系认证。RC-02K3402FT作为其成熟产品线,具备:

  • 供货稳定:常规库存充足,交期1~2周;
  • 技术支持:提供选型手册、焊接工艺指南,工程师免费咨询;
  • 定制化:支持阻值、功率、TCR等参数定制(需批量)。

该电阻以“高精度、宽温稳、小体积”为核心优势,是小型化电路设计中提升性能与集成度的理想选择,可有效降低系统成本与空间占用。

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