WMSIC Electronic Components

UNI-ROYAL 0402WGF2872TCE

Model0402WGF2872TCE
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 0402WGF2872TCE
Type
UNI-ROYAL
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF2872TCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
28.7kΩ
Electronic Component
10
Electronic Component
BM0263477495
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.

0402WGF2872TCE 厚膜贴片电阻产品概述

一、产品定位与核心身份

0402WGF2872TCE是UNI-ROYAL(厚声) 推出的小功率高精度厚膜贴片电阻,采用0402英制封装(对应公制1005),专为高密度PCB设计的小信号电路打造。该产品兼顾成本与性能稳定性,覆盖消费电子、工业控制、汽车电子等多领域常规应用,是批量生产中替代进口同类产品的高性价比选择。

二、基础电气参数解析

核心参数明确了应用边界,关键项及实际意义如下:

  • 阻值与精度:28.7kΩ(贴片代码“2872”,即287×10²Ω),精度±1%。满足信号调理、偏置电路的匹配需求,无需额外校准即可实现稳定输出。
  • 额定功率:62.5mW。需降额使用(建议70%以下),实际最大安全功耗约43.75mW,对应工作电流≈1.48mA(由(I=\sqrt{P/R})计算),适配小信号放大、传感器偏置等低功耗场景。
  • 工作电压:50V(直流/交流峰值)。实际应用需结合功率降额,避免电压超限(如50V时功耗≈87.1mW,超额定值,建议限制电压≤42.2V)。
  • 温度系数(TCR):±100ppm/℃。温差100℃时,阻值漂移≈2.87Ω(漂移率0.01%/℃),叠加±1%精度后总偏差≤2%,宽温稳定性优于多数低成本电阻。

三、封装与工艺特性

0402封装+厚膜工艺的组合具备明显优势:

  • 封装尺寸:0.04英寸×0.02英寸(≈1.0mm×0.5mm),厚度≈0.3mm,大幅节省PCB空间,适配智能手机、可穿戴设备等紧凑设计。
  • 厚膜工艺:采用丝网印刷+高温烧结技术,在氧化铝陶瓷基底上形成电阻膜层,成本低于薄膜电阻,且短时间过载可承受额定功率2-3倍。
  • 端电极结构:“镍(Ni)阻挡层+锡(Sn)镀层”三层设计,兼容回流焊、波峰焊,焊接后附着力强,长期无脱焊风险。

四、典型应用场景

基于参数与封装特性,该电阻适配以下场景:

  1. 消费电子:智能手机音频放大偏置、平板触控信号调理、蓝牙耳机射频匹配网络,满足小空间低功耗需求。
  2. 工业控制:小型压力/温度传感器信号放大偏置、PLC输入输出接口,宽温范围适配车间、户外设备。
  3. 汽车电子:车载仪表盘背光调节、车门传感器接口、行车记录仪电源滤波偏置,-55℃~+155℃覆盖极端环境。
  4. 通信设备:路由器/基站小信号处理、光纤收发器偏置网络,高密度封装适配通信设备紧凑布局。

五、可靠性与环境适应性

UNI-ROYAL对该产品做了针对性可靠性优化:

  • 宽温测试:通过-55℃~+155℃循环100次测试,阻值变化率≤0.5%,满足极端环境需求。
  • 环保合规:符合RoHS 2.0、REACH标准,无铅端电极适配汽车电子焊接要求。
  • 批量一致性:自动化生产+在线检测,阻值一致性≤±0.5%(远优于标称),减少焊接后测试成本。

六、品牌与品质背书

UNI-ROYAL(厚声)是国内电阻制造龙头,具备20余年经验,产品覆盖全系列被动元件。0402WGF2872TCE通过AEC-Q200(汽车级)可选认证、ISO 9001认证,月产能超10亿只,可满足批量订单需求。

该产品以高性价比、宽温稳定性成为小信号电路的主流选择,适配多领域量产需求。

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