WMSIC Electronic Components

UNI-ROYAL 0402WGF220KTCE

Model0402WGF220KTCE
Package0402
BrandUNI-ROYAL
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
UNI-ROYAL 0402WGF220KTCE
Type
UNI-ROYAL
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF220KTCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
2.2Ω
Electronic Component
10
Electronic Component
BM0257242485
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±200ppm/℃
Resistor Type
Resistor

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

0402WGF220KTCE 产品概述

一、产品简介

0402WGF220KTCE 为 UNI-ROYAL(厚声)系列的贴片厚膜电阻,封装尺寸为 0402(约 1.0 mm × 0.5 mm)。该器件为低阻值、高稳定性的通用贴片电阻,阻值 2.2Ω,阻值精度 ±1%,额定功率 62.5 mW,最高工作电压标称 50 V,工作温度范围 -55 ℃ 至 +155 ℃,温度系数(TCR)为 ±200 ppm/℃。适配常规 SMT 回流焊工艺,适合自动贴装与批量生产。

二、主要电气与温度参数

  • 电阻类型:厚膜电阻
  • 阻值:2.2 Ω ±1%
  • 额定功率:62.5 mW(典型封装额定)
  • 最高工作电压:50 V(器件耐压,实际连续使用还受功耗限制)
  • 温度系数:±200 ppm/℃(约 0.02%/℃)
  • 工作温度:-55 ℃ ~ +155 ℃
  • 额定功率对应的近似最大连续电流:Imax ≈ sqrt(P/R) ≈ 0.17 A(约 170 mA)
  • 在额定功率下对应的电压:Vmax ≈ sqrt(P·R) ≈ 0.37 V(因此在实际设计中需同时考虑电压与功耗两方面限制)

三、产品特点与优势

  • 体积超小(0402),占板面积小,适合高密度 PCB 设计。
  • ±1% 精度可满足多数模拟与数字电路的阻值配比需求。
  • 宽温范围与较好的耐热性,适用于工业级与消费类设备。
  • 厚膜工艺成本效益高、批量一致性好,适合量产应用。
  • 与常见无铅回流焊工艺兼容,便于 SMT 线贴装及回流焊接。

四、典型应用场景

  • 便携式消费电子中的限流、阻抗匹配与分压电路。
  • 数字、模拟前端的偏置与信号路径阻抗设置。
  • 通信终端、物联网模组和仪表的通用电阻需求。
  • 需注意:由于额定功率与 TCR 限制,不推荐将其作为高精度低阻感测(高精度电流采样)或高功率耗散场合的分流电阻。

五、安装与使用建议

  • 参考厂商回流焊温度曲线进行焊接,避免超出峰值温度与保温时间以保证可靠性。
  • 在高功耗或高环境温度场合应采用功率降额(derating),并通过增加铜箔散热或改变 PCB 布局以降低结温。
  • 对于接地或功率端,适度扩大焊盘铜面积与添加过孔可改善热散逸。
  • 小封装抗机械应力能力有限,贴装时避免过度挤压、弯曲或手工焊接造成的机械冲击。
  • 储存与搬运按常规元件管理:防潮、防尘、避免长时间暴露在高温高湿环境中;如有潮湿敏感等级(MSL)要求,请参照厂家说明。

六、可靠性与选型提示

  • 厚膜电阻在长期漂移与噪声方面不及金属膜/薄膜电阻,但在成本与封装密度方面优势明显。
  • 选择时应综合考虑工作温度、瞬态电流与长期稳定性,必要时做样片测试或参照厂方详细 Datasheet 的老化与热循环数据。
  • 若电路对功耗或温漂要求严格,建议考虑更大封装或更低 TCR 的器件替代。

如需完整 Datasheet、样品或批量报价,请联系供应商索取 0402WGF220KTCE 的厂方技术资料以获得详尽的温漂曲线、功率降额曲线和可靠性测试数据。

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