WMSIC Electronic Components

FH RC-02K221JT

ModelRC-02K221JT
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-02K221JT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K221JT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.022g
Electronic Component
220Ω
Electronic Component
50
Electronic Component
BM0264865192
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-02K221JT 厚膜贴片电阻产品概述

一、产品定位与品牌背景

RC-02K221JT是风华电子(FH品牌) 推出的通用型厚膜贴片电阻,定位于小封装、宽温范围、低成本的被动元件市场,主要满足消费电子、工业控制、小型通信设备等领域对高可靠性电阻的需求。

风华电子作为国内被动元件行业老牌厂商,拥有数十年厚膜电阻研发与生产经验,产品覆盖0402至2512全系列封装,其厚膜电阻以稳定性好、供应能力强、成本可控著称,广泛应用于国内外电子整机产品(如手机、汽车电子、工业PLC等)。

二、核心参数及规格详解

1. 阻值与精度

  • 标称阻值:220Ω(采用三位数字编码:前两位“22”为有效数字,第三位“1”代表倍率10¹,即22×10¹=220Ω);
  • 精度等级:±5%,实际阻值范围为209Ω~231Ω,可满足大多数通用电路(分压、限流、匹配)的误差要求,无需额外校准。

2. 功率与负载能力

  • 额定功率:62.5mW(0.0625W),属于0402封装电阻的常规功率等级;
  • 降额要求:环境温度超过25℃时需降额使用(如100℃环境下,功率负载不超过额定值的70%),避免过热导致阻值漂移或失效。

3. 温度系数(TCR)

  • 阻值温度系数:±100ppm/℃,即温度每变化1℃,阻值变化量为标称值的百万分之一百;
  • 实际影响:以220Ω为例,温度从25℃升至125℃(变化100℃),阻值变化约2.2Ω(变化率1%),可适应环境温度变化不大的场景。

4. 工作温度范围

  • 范围:-55℃~+155℃,覆盖工业级设备典型温区,可满足低温(北方户外)和高温(汽车发动机舱周边低功率电路)环境需求。

5. 封装尺寸

  • 封装:0402(英制:0.04in×0.02in;公制:1.0mm×0.5mm),体积小巧,适合高密度PCB设计(如智能手机、可穿戴设备)。

三、工艺与可靠性特点

RC-02K221JT采用厚膜烧结工艺制造,核心流程为:

  1. 氧化铝陶瓷基板印刷钌系电阻浆料;
  2. 高温烧结形成电阻膜;
  3. 激光调阻实现精度要求;
  4. 封装电极(端电极采用镍/锡镀层,符合RoHS环保标准)。

该工艺带来以下优势:

  • 稳定性强:电阻膜与陶瓷基板结合牢固,长期使用阻值漂移≤0.5%(1000小时老化测试);
  • 耐环境性好:抗潮湿(GB/T 2423.3)、抗盐雾(GB/T 2423.17)性能达标,可适应恶劣环境;
  • 成本可控:相比薄膜电阻(如NiCr薄膜),无需真空镀膜设备,生产成本降低30%以上。

四、典型应用场景

  1. 消费电子:智能手机音频电路分压电阻、平板电脑电池管理系统(BMS)低功率采样电阻、WiFi模块匹配电阻;
  2. 工业控制:小型PLC输入输出电路限流电阻、PT100温度传感器信号调理电阻、小型电机驱动辅助电阻;
  3. 汽车电子:后视镜调节控制电阻、车载USB接口限流电阻(需匹配EMC要求);
  4. 通信设备:小型基站模块偏置电路电阻、光纤收发器信号匹配电阻。

五、性能优势与市场价值

  1. 小封装高密度:0402封装体积仅1.0mm×0.5mm,可提升PCB布局密度30%以上,满足小型化产品需求;
  2. 成本与性能平衡:±5%精度、±100ppm/℃温系覆盖80%通用电路需求,性价比突出;
  3. 宽温可靠性:-55℃+155℃温区,相比同类产品(如-40℃+125℃)环境适应性更强;
  4. 品牌保障:风华电子稳定供应能力(月产能超10亿只),可降低客户供应链风险。

总结:RC-02K221JT是一款性价比突出的通用型厚膜贴片电阻,凭借小封装、宽温区、低成本等优势,广泛适用于消费电子、工业控制等领域,是电子整机产品的理想被动元件选择。

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