WMSIC Electronic Components

UNI-ROYAL 0402WGF2552TCE

Model0402WGF2552TCE
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 0402WGF2552TCE
Type
UNI-ROYAL
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF2552TCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
25.5kΩ
Electronic Component
10
Electronic Component
BM0257244988
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.

0402WGF2552TCE 产品概述

一、产品简介

0402WGF2552TCE 是 UNI-ROYAL(厚声)出品的一款厚膜贴片电阻,封装为0402(约1.0 mm × 0.5 mm),阻值 25.5 kΩ,精度 ±1%,额定功率 62.5 mW,额定工作电压 50 V,温度系数(TCR)±100 ppm/℃,工作温度范围 -55℃ 至 +155℃。此型号定位为通用型高密度贴片电阻,适合大批量自动贴装与低功耗电子应用。

二、主要特性

  • 厚膜工艺:成本低、产能高,适合一般精度与一般稳定性要求的电路设计。
  • 精度 ±1%:适用于需要较高阻值精度的分压、拉/下拉、电平偏置等电路。
  • 小尺寸 0402:适合高密度 PCB 布局,节省空间。
  • 宽温工作范围:-55℃ 至 +155℃,适应性强,适合多种环境。

三、关键技术参数

  • 阻值:25.5 kΩ
  • 公差:±1%
  • 额定功率:62.5 mW(典型 70℃ 额定)
  • 额定工作电压:50 V(器件最大标称电压)
  • TCR:±100 ppm/℃
  • 工作温度:-55℃ ~ +155℃
  • 封装:0402(≈1.0 × 0.5 mm)
    说明:基于功率极限计算的连续最大允许电压 Vmax = sqrt(P × R) ≈ sqrt(0.0625 W × 25500 Ω) ≈ 39.9 V。也就是说,当电阻承受连续功率时,跨端电压不应长期超过约 40 V,否则会超过功率额定值;器件标称工作电压 50 V 主要指绝缘/击穿限制,实际设计应以功率限制为准。

四、使用与焊接注意事项

  • 功率与温度降额:0402 小封装对热敏感,额定功率通常是基准温度下的值(如 70℃),高温时需线性降额直至 0 W(通常在接近最大工作温度时)。实际应用请参考具体数据表的降额曲线并保守设计。
  • 印制板布局:大铜面积或散热层会影响电阻散热能力,铜皮越大散热越好,可提高极限功率;但同时也可能引发温差导致阻值漂移,应在 PCB 布局上作权衡。
  • 回流焊工艺:适用于无铅回流焊,建议遵循器件及焊料的峰值温度与时间限制(参考 JEDEC/制造商推荐)。避免多次高温循环导致性能退化。
  • 电压与脉冲:避免施加超过计算出来的连续电压;对于脉冲功率,应确保脉冲能量与平均功耗在安全范围内。

五、适用场景

  • 移动终端、便携设备的偏置、分压网络
  • 传感器接口、模数混合电路中的阻性元件
  • 物联网、消费电子产品中高密度 PCB 的常规电阻需求
  • 成本敏感且对温漂要求不极端的电子产品

六、可靠性与选型建议

0402WGF2552TCE 适合大批量、成本与空间受限的通用电子应用;若电路对温漂、长期稳定性或高精度(ppm 级)有更苛刻要求,建议选用薄膜或金属膜高精度电阻。设计时优先参考厂商完整数据表,确认降额曲线、脉冲能力及环境应力测试(如湿热、冲击、焊接耐受)数据。

七、包装与采购

此类0402厚膜电阻通常以卷带(Tape & Reel)形式供货,适合自动贴装机使用。下单或批量采购时建议确认包装带宽(7" / 13" 卷)、最小订购量以及是否有相关质量认证或放行文件。若需特殊变更(如条形码、打标或更严格检验),请与供应商沟通确认。

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