WMSIC Electronic Components

FH RC-02K393JT

ModelRC-02K393JT
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-02K393JT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K393JT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.022g
Electronic Component
39kΩ
Electronic Component
50
Electronic Component
BM0264865323
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-02K393JT 厚膜贴片电阻产品概述

一、产品基本属性与定位

RC-02K393JT是风华电子(FH品牌)推出的通用型厚膜贴片电阻,采用0402(英制)/1005(公制)小型封装,针对高密度、小功率电子设备的阻抗设计需求开发。该产品属于厚膜工艺电阻范畴,兼具成本效益与基础性能稳定性,是实现分压、限流、阻抗匹配等核心功能的通用被动元件,广泛适配消费电子、工业控制等领域的常规电路场景。

二、核心规格参数详解

RC-02K393JT的参数覆盖电路设计关键指标,具体如下:

  • 阻值与精度:标称阻值39kΩ(代码“393”对应39×10³Ω),精度±5%(通用级),满足对阻值偏差要求不苛刻的电路需求;
  • 功率额定值:62.5mW,适配0402封装的典型功率负载,支撑小功率信号电路与低压控制电路稳定运行;
  • 温度特性:温度系数(TCR)±100ppm/℃(温度每变1℃,阻值相对变±0.01%);工作温区-55℃~+155℃,覆盖工业级宽温波动;
  • 封装与工艺:0402贴片封装(尺寸1.0mm×0.5mm),厚膜工艺制备(丝网印刷+烧结),一致性好、批量成本低。

三、典型应用场景

因小型化、低成本与宽温适配性,该电阻广泛应用于:

  1. 消费电子:智能手机、平板、智能穿戴的按键分压、LED限流、传感器信号调理;
  2. 工业控制:小型PLC模块、传感器节点、电机驱动辅助电路的阻抗匹配与限流;
  3. 汽车电子次级场景:车载信息娱乐系统的按键背光分压、小功率信号传输(适配车载温区);
  4. 通信终端:无线耳机、蓝牙模块的射频前端小型阻抗匹配网络(节省PCB空间);
  5. 智能家居:智能插座、温湿度传感器的低压控制电路(分压与电流限制)。

四、关键性能优势

  1. 小型化高密度适配:0402封装尺寸仅1.0mm×0.5mm,大幅提升PCB布局密度,适配便携设备紧凑设计;
  2. 宽温稳定可靠:-55℃~+155℃覆盖工业与部分车载场景,±100ppm/℃ TCR确保温度波动下阻值偏差可控,避免电路漂移;
  3. 成本效益突出:厚膜工艺批量生产效率高、成本低,在通用级电阻市场性价比显著,适合大规模量产;
  4. 品牌一致性保障:风华电子作为国内被动元件龙头,产品一致性好、参数偏差严格控制,供货周期稳定;
  5. 功率适配精准:62.5mW额定功率匹配0402封装容量,避免过设计浪费,同时满足小功率电路安全运行。

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:实际工作功率建议≤额定功率的50%(≤31.25mW),避免满功率老化;
  2. 高温降额:超过125℃时长时间工作,需进一步降额至≤30%额定功率;
  3. 焊接规范:回流焊峰值温度≤245℃、回流时间≤60s,避免虚焊或热损伤;
  4. 精度匹配:±5%仅适合分压、限流等常规场景,仪表等高精度需求需选±1%及以上精度;
  5. 环境防护:避免长期暴露在高湿度(>85%RH)、腐蚀性气体(硫化物)中,做好PCB防护。

该产品以“小型化+宽温+低成本”为核心优势,是通用电子设备中替代同类进口电阻的高性价比选择,适用于对精度要求不苛刻但需稳定运行的批量应用场景。

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